Changes for page RS485-LN – RS485 to LoRaWAN Converter User Manual

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Details

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Title

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1		-RS485-LN – RS485 to LoRaWAN Converter User Manual
	1	+RS485-LN – RS485 to LoRaWAN Converter

Author

...	...	@@ -1,1 +1,1 @@
1		-XWiki.Bei
	1	+XWiki.Xiaoling

Content

...	...	@@ -1,40 +1,23 @@
1		-(% aria-label="1653266934636-343.png image widget" contenteditable="false" role="region" tabindex="-1" %)
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3		-(% data-widget="image" style="text-align:center" %)
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7		-)))
8	8
9	9
	6	+**RS485-LN – RS485 to LoRaWAN Converter User Manual**
10	10
11	11
12		-
13		-
14		-
15	15	**Table of Contents:**
16	16
17		-{{toc/}}
18	18
19	19
20		-(% aria-label="macro:toc widget" contenteditable="false" role="region" tabindex="-1" %)
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22		-(% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||height="15" role="presentation" title="Click and drag to move" width="15"]]
23		-)))
24	24
25	25
26		-
27		-
28		-
29		-
30		-
31	31	= 1.Introduction =
32	32
33		-
34	34	== 1.1 What is RS485-LN RS485 to LoRaWAN Converter ==
35	35
36		-
37	37	(((
	20	+(((
38	38	The Dragino RS485-LN is a (% style="color:blue" %)**RS485 to LoRaWAN Converter**(%%). It converts the RS485 signal into LoRaWAN wireless signal which simplify the IoT installation and reduce the installation/maintaining cost.
39	39	)))
40	40
...	...	@@ -48,21 +48,18 @@
48	48
49	49	(((
50	50	(% style="color:blue" %)**For data downlink**(%%), RS485-LN runs in LoRaWAN Class C. When there downlink commands from LoRaWAN server, RS485-LN will forward the commands from LoRaWAN server to RS485 devices.
51		-)))
52	52
53		-(((
54	54	(% style="color:blue" %)**Demo Dashboard for RS485-LN**(%%) connect to two energy meters: [[https:~~/~~/app.datacake.de/dashboard/d/58844a26-378d-4c5a-aaf5-b5b5b153447a>>url:https://app.datacake.de/dashboard/d/58844a26-378d-4c5a-aaf5-b5b5b153447a]]
55	55	)))
	37	+)))
56	56
	39	+[[image:1653267211009-519.png||height="419" width="724"]]
57	57
58		-(% aria-label="1653267211009-519.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1653267211009-519.png||data-widget="image" height="419" width="724"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
59	59
60		-
61		-
62	62	== 1.2 Specifications ==
63	63
64	64
65		-(% style="color:#037691" %)**Hardware System:**
	45	+**Hardware System:**
66	66
67	67	* STM32L072CZT6 MCU
68	68	* SX1276/78 Wireless Chip
...	...	@@ -70,12 +70,12 @@
70	70	** Idle: 32mA@12v
71	71	** 20dB Transmit: 65mA@12v
72	72
73		-(% style="color:#037691" %)**Interface for Model:**
	53	+**Interface for Model:**
74	74
75	75	* RS485
76	76	* Power Input 7~~ 24V DC.
77	77
78		-(% style="color:#037691" %)**LoRa Spec:**
	58	+**LoRa Spec:**
79	79
80	80	* Frequency Range:
81	81	** Band 1 (HF): 862 ~~ 1020 Mhz
...	...	@@ -94,14 +94,14 @@
94	94	* Preamble detection.
95	95	* 127 dB Dynamic Range RSSI.
96	96	* Automatic RF Sense and CAD with ultra-fast AFC.
97		-* Packet engine up to 256 bytes with CRC
	77	+* Packet engine up to 256 bytes with CRC.
98	98
99	99
	80	+
100	100	== 1.3 Features ==
101	101
102		-
103	103	* LoRaWAN Class A & Class C protocol (default Class C)
104		-* Frequency Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865/RU864/MA869
	84	+* Frequency Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865/RU864
105	105	* AT Commands to change parameters
106	106	* Remote configure parameters via LoRa Downlink
107	107	* Firmware upgradable via program port
...	...	@@ -110,9 +110,9 @@
110	110	* Support Interrupt uplink (Since hardware version v1.2)
111	111
112	112
	93	+
113	113	== 1.4 Applications ==
114	114
115		-
116	116	* Smart Buildings & Home Automation
117	117	* Logistics and Supply Chain Management
118	118	* Smart Metering
...	...	@@ -121,27 +121,20 @@
121	121	* Smart Factory
122	122
123	123
	104	+
124	124	== 1.5 Firmware Change log ==
125	125
126		-
127	127	[[RS485-LN Image files – Download link and Change log>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/]]
128	128
129	129
130		-
131	131	== 1.6 Hardware Change log ==
132	132
133		-
134	134	(((
135	135	(((
136		-(((
137	137	v1.2: Add External Interrupt Pin.
138		-)))
139	139
140		-(((
141	141	v1.0: Release
142		-)))
143	143
144		-
145	145
146	146	)))
147	147	)))
...	...	@@ -148,7 +148,6 @@
148	148
149	149	= 2. Power ON Device =
150	150
151		-
152	152	(((
153	153	The RS485-LN can be powered by 7 ~~ 24V DC power source. Connection as below
154	154
...	...	@@ -159,36 +159,28 @@
159	159	Once there is power, the RS485-LN will be on.
160	160	)))
161	161
162		-(% aria-label="1653268091319-405.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1653268091319-405.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
	134	+[[image:1653268091319-405.png]]
163	163
164		-
165	165
166	166	)))
167	167
168	168	= 3. Operation Mode =
169	169
170		-
171	171	== 3.1 How it works? ==
172	172
173		-
174	174	(((
175		-(((
176	176	The RS485-LN is configured as LoRaWAN OTAA Class C mode by default. It has OTAA keys to join network. To connect a local LoRaWAN network, user just need to input the OTAA keys in the network server and power on the RS485-LN. It will auto join the network via OTAA.
177		-)))
178	178
179		-
180	180
181	181	)))
182	182
183	183	== 3.2 Example to join LoRaWAN network ==
184	184
185		-
186	186	Here shows an example for how to join the TTN V3 Network. Below is the network structure, we use [[LG308>>url:http://www.dragino.com/products/lora-lorawan-gateway/item/140-lg308.html]] as LoRaWAN gateway here.
187	187
	153	+[[image:1653268155545-638.png||height="334" width="724"]]
188	188
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190	190
191		-
192	192	(((
193	193	(((
194	194	The RS485-LN in this example connected to two RS485 devices for demonstration, user can connect to other RS485 devices via the same method. The connection is as below:
...	...	@@ -196,21 +196,16 @@
196	196
197	197	(((
198	198	485A+ and 485B- of the sensor are connected to RS485A and RA485B of RS485-LN respectively.
199		-
200		-
201	201	)))
202	202
203		-(% aria-label="1653268227651-549.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1653268227651-549.png||data-widget="image" height="592" width="720"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
	165	+[[image:1653268227651-549.png||height="592" width="720"]]
204	204
205		-
206	206	(((
207		-The LG308 is already set to connect to [[TTN V3 network >>path:https://www.thethingsnetwork.org/]]. So what we need to now is only configure the TTN V3:
208		-
209		-
	168	+The LG308 is already set to connect to [[TTN V3 network >>path:eu1.cloud.thethings.network/]]. So what we need to now is only configure the TTN V3:
210	210	)))
211	211
212	212	(((
213		-(% style="color:blue" %)**Step 1**(%%): Create a device in TTN V3 with the OTAA keys from RS485-LN.
	172	+**Step 1**: Create a device in TTN V3 with the OTAA keys from RS485-LN.
214	214	)))
215	215
216	216	(((
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218	218	)))
219	219	)))
220	220
221		-(% aria-label="1652953462722-299.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1652953462722-299.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
	180	+[[image:1652953462722-299.png]]
222	222
223		-
224	224	(((
225	225	(((
226	226	User can enter this key in their LoRaWAN Server portal. Below is TTN V3 screen shot:
227		-
228		-
229	229	)))
230	230
231	231	(((
232		-**Add APP EUI in the application.**
	188	+Add APP EUI in the application.
233	233	)))
234	234	)))
235	235
236		-(% aria-label="image-20220519174512-1.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220519174512-1.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
	192	+[[image:image-20220519174512-1.png]]
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	194	+[[image:image-20220519174512-2.png||height="323" width="720"]]
239	239
240		-(% aria-label="image-20220519174512-3.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220519174512-3.png||data-widget="image" height="556" width="724"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
	196	+[[image:image-20220519174512-3.png||height="556" width="724"]]
241	241
242		-(% aria-label="image-20220519174512-4.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220519174512-4.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]]
	198	+[[image:image-20220519174512-4.png]]
243	243
244		-
245		-(% title="Click and drag to resize" %)​
246		-
247	247	You can also choose to create the device manually.
248	248
249		-(% aria-label="1652953542269-423.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1652953542269-423.png||data-widget="image" height="710" width="723"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
	202	+[[image:1652953542269-423.png||height="710" width="723"]]
250	250
	204	+Add APP KEY and DEV EUI
251	251
	206	+[[image:1652953553383-907.png||height="514" width="724"]]
252	252
253		-**Add APP KEY and DEV EUI**
254	254
255		-(% aria-label="1652953553383-907.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1652953553383-907.png||data-widget="image" height="514" width="724"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
256		-
257		-
258		-
259	259	(((
260		-(% style="color:blue" %)**Step 2**(%%): Power on RS485-LN and it will auto join to the TTN V3 network. After join success, it will start to upload message to TTN V3 and user can see in the panel.
261		-
262		-
	210	+**Step 2**: Power on RS485-LN and it will auto join to the TTN V3 network. After join success, it will start to upload message to TTN V3 and user can see in the panel.
263	263	)))
264	264
265		-(% aria-label="1652953568895-172.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1652953568895-172.png||data-widget="image" height="232" width="724"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
	213	+[[image:1652953568895-172.png||height="232" width="724"]]
266	266
267	267
268		-
269	269	== 3.3 Configure Commands to read data ==
270	270
271		-
272	272	(((
273	273	(((
274		-(((
275		-There are plenty of RS485 devices in the market and each device has different command to read the valid data. To support these devices in flexible, RS485-LN supports flexible command set. User can use [[AT Commands>>||anchor="H3.5ConfigureRS485-LNviaATorDownlink"]] or LoRaWAN Downlink Command to configure what commands RS485-LN should send for each sampling and how to handle the return from RS485 devices.
276		-
277		-
	220	+There are plenty of RS485 devices in the market and each device has different command to read the valid data. To support these devices in flexible, RS485-LN supports flexible command set. User can use [[AT Commands>>path:#AT_COMMAND]] or LoRaWAN Downlink Command to configure what commands RS485-LN should send for each sampling and how to handle the return from RS485 devices.
278	278	)))
279		-)))
280	280
281	281	(((
282		-(((
283		-(% style="color:red" %)**Note: below description and commands are for firmware version >v1.1, if you have firmware version v1.0. Please check the [[user manual v1.0>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/&file=RS485-LN_UserManual_v1.0.1.pdf]] or upgrade the firmware to v1.1**
284		-)))
	224	+(% style="color:red" %)Note: below description and commands are for firmware version >v1.1, if you have firmware version v1.0. Please check the [[user manual v1.0>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/&file=RS485-LN_UserManual_v1.0.1.pdf]] or upgrade the firmware to v1.1
285	285
286		-
287	287
288	288	)))
289	289	)))
290	290
291		-=== 3.3.1 Configure UART settings for RS485 or TTL communication ===
	230	+=== 3.3.1 onfigure UART settings for RS485 or TTL communication ===
292	292
293		-
294	294	To use RS485-LN to read data from RS485 sensors, connect the RS485-LN A/B traces to the sensors. And user need to make sure RS485-LN use the match UART setting to access the sensors. The related commands for UART settings are:
295	295
296		-
297		-(% border="1" cellspacing="5" style="background-color:#ffffcc; color:green; width:510px" %)
298		-|=(% style="width: 110px;" %)(((
	234	+(% border="1" style="background-color:#ffffcc; color:green; width:782px" %)
	235	+|(% style="width:128px" %)(((
299	299	**AT Commands**
300		-)))|=(% style="width: 210px;" %)(((
	237	+)))|(% style="width:305px" %)(((
301	301	**Description**
302		-)))|=(% style="width: 190px;" %)(((
	239	+)))|(% style="width:346px" %)(((
303	303	**Example**
304	304	)))
305		-|(% style="width:110px" %)(((
	242	+|(% style="width:128px" %)(((
306	306	AT+BAUDR
307		-)))|(% style="width:190px" %)(((
	244	+)))|(% style="width:305px" %)(((
308	308	Set the baud rate (for RS485 connection). Default Value is: 9600.
309		-)))|(% style="width:190px" %)(((
	246	+)))|(% style="width:346px" %)(((
310	310	(((
311	311	AT+BAUDR=9600
312	312	)))
...	...	@@ -315,11 +315,11 @@
315	315	Options: (1200,2400,4800,14400,19200,115200)
316	316	)))
317	317	)))
318		-|(% style="width:110px" %)(((
	255	+|(% style="width:128px" %)(((
319	319	AT+PARITY
320		-)))|(% style="width:190px" %)(((
	257	+)))|(% style="width:305px" %)(((
321	321	Set UART parity (for RS485 connection)
322		-)))|(% style="width:190px" %)(((
	259	+)))|(% style="width:346px" %)(((
323	323	(((
324	324	AT+PARITY=0
325	325	)))
...	...	@@ -328,9 +328,9 @@
328	328	Option: 0: no parity, 1: odd parity, 2: even parity
329	329	)))
330	330	)))
331		-|(% style="width:110px" %)(((
	268	+|(% style="width:128px" %)(((
332	332	AT+STOPBIT
333		-)))|(% style="width:190px" %)(((
	270	+)))|(% style="width:305px" %)(((
334	334	(((
335	335	Set serial stopbit (for RS485 connection)
336	336	)))
...	...	@@ -338,7 +338,7 @@
338	338	(((
339	339
340	340	)))
341		-)))|(% style="width:190px" %)(((
	278	+)))|(% style="width:346px" %)(((
342	342	(((
343	343	AT+STOPBIT=0 for 1bit
344	344	)))
...	...	@@ -355,1375 +355,906 @@
355	355
356	356	=== 3.3.2 Configure sensors ===
357	357
358		-
359	359	(((
360	360	(((
361		-Some sensors might need to configure before normal operation. User can configure such sensor via PC and RS485 adapter or through RS485-LN AT Commands (% style="color:#4f81bd" %)**AT+CFGDEV**(%%). Each (% style="color:#4f81bd" %)**AT+CFGDEV **(%%)equals to send a RS485 command to sensors. This command will only run when user input it and won't run during each sampling.
362		-
363		-
	297	+Some sensors might need to configure before normal operation. User can configure such sensor via PC and RS485 adapter or through RS485-LN AT Commands (% style="color:#4f81bd" %)**AT+CFGDEV**(%%). Each (% style="color:#4f81bd" %)**AT+CFGDEV **(%%)equals to send a RS485 command to sensors. This command will only run when user input it and won’t run during each sampling.
364	364	)))
365	365	)))
366	366
367		-(% border="1" cellspacing="5" style="background-color:#ffffcc; color:green; width:510px" %)
368		-|=(% style="width: 110px;" %)**AT Commands**|=(% style="width: 210px;" %)**Description**|=(% style="width: 190px;" %)**Example**
369		-|AT+CFGDEV|(% style="width:110px" %)(((
370		-(((
	301	+(% border="1" style="background-color:#ffffcc; color:green; width:806px" %)
	302	+|**AT Commands**|(% style="width:418px" %)**Description**|(% style="width:256px" %)**Example**
	303	+|AT+CFGDEV|(% style="width:418px" %)(((
371	371	This command is used to configure the RS485/TTL devices; they won’t be used during sampling.
372		-)))
373	373
374		-(((
375	375	AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,
376		-)))
377	377
378		-(((
379	379	mm: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
380		-)))
381		-)))|(% style="width:190px" %)AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
	309	+)))|(% style="width:256px" %)AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
382	382
383	383
	312	+
384	384	=== 3.3.3 Configure read commands for each sampling ===
385	385
386		-
387	387	(((
388		-During each sampling, we need confirm what commands we need to send to the RS485 sensors to read data. After the RS485 sensors send back the value, it normally include some bytes and we only need a few from them for a shorten payload.
389		-
390		-To save the LoRaWAN network bandwidth, we might need to read data from different sensors and combine their valid value into a short payload.
391		-
392		-This section describes how to achieve above goals.
393		-
394		-During each sampling, the RS485-LN can support 15 commands to read sensors. And combine the return to one or several uplink payloads.
395		-
396		-
397		-(% style="color:#037691" %)**Each RS485 commands include two parts:**
398		-
399		-
400		-~1. What commands RS485-LN will send to the RS485 sensors. There are total 15 commands from **AT+COMMAD1**, **ATCOMMAND2**,…, to **AT+COMMANDF**. All commands are of same grammar.
401		-
402		-2. How to get wanted value the from RS485 sensors returns from by 1). There are total 15 AT Commands to handle the return, commands are **AT+DATACUT1**,**AT+DATACUT2**,…, **AT+DATACUTF** corresponding to the commands from 1). All commands are of same grammar.
403		-
404		-3. Some RS485 device might has longer delay on reply, so user can use AT+CMDDL to set the timeout for getting reply after the RS485 command is sent. For example **AT+CMDDL1=1000** to send the open time to 1000ms
405		-
406		-
407		-After we got the valid value from each RS485 commands, we need to combine them together with the command **AT+DATAUP**.
408		-
409		-Below are examples for the how above AT Commands works.
410		-
411		-
412		-(% style="color:#037691" %)**AT+COMMANDx **(%%)**: **This command will be sent to RS485 devices during each sampling, Max command length is 14 bytes. The grammar is:
413		-
414		-(% border="1" style="background-color:#4bacc6; color:white; width:499px" %)
415		-|(% style="width:496px" %)(((
416		-**AT+COMMANDx=xx xx xx xx xx xx xx xx xx xx xx xx,m**
417		-
418		-**xx xx xx xx xx xx xx xx xx xx xx xx: The RS485 command to be sent**
419		-
420		-**m: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command**
	316	+RS485-BL is a battery powered device; it will sleep most of time. And wake up on each period and read RS485 / TTL sensor data and uplink.
421	421	)))
422	422
423		-For example, if we have a RS485 sensor. The command to get sensor value is: 01 03 0B B8 00 02 46 0A. Where 01 03 0B B8 00 02 is the Modbus command to read the register 0B B8 where stored the sensor value. The 46 0A is the CRC-16/MODBUS which calculate manually.
424		-
425		-In the RS485-LN, we should use this command AT+COMMAND1=01 03 0B B8 00 02,1 for the same.
426		-
427		-
428		-(% style="color:#037691" %)**AT+DATACUTx **(%%)**: **This command defines how to handle the return from AT+COMMANDx, max return length is 100 bytes.
429		-
430		-(% border="1" style="background-color:#4bacc6; color:white; width:510px" %)
431		-|(% style="width:510px" %)(((
432		-**AT+DATACUTx=a,b,c**
433		-
434		-* **a: length for the return of AT+COMMAND**
435		-* **b:1: grab valid value by byte, max 6 bytes. 2: grab valid value by bytes section, max 3 sections.**
436		-* **c: define the position for valid value.  **
	319	+(((
	320	+During each sampling, we need to confirm what commands we need to send to the sensors to read data. After the RS485/TTL sensors send back the value, it normally includes some bytes and we only need a few from them for a shorten payload.
437	437	)))
438	438
439		-**Examples:**
440		-
441		-
442		-* (% style="color:#037691" %)**Grab bytes**
443		-
444		-(% aria-label="image-20220602153621-1.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220602153621-1.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
445		-
446		-
447		-
448		-* (% style="color:#037691" %)**Grab a section**
449		-
450		-(% aria-label="image-20220602153621-2.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220602153621-2.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
451		-
452		-
453		-
454		-* (% style="color:#037691" %)**Grab different sections**
455		-
456		-(% aria-label="image-20220602153621-3.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220602153621-3.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
457		-
458		-
459		-
460		-)))
461		-
462		-=== 3.3.4 Compose the uplink payload ===
463		-
464		-
465	465	(((
466		-Through AT+COMMANDx and AT+DATACUTx we got valid value from each RS485 commands, Assume these valid value are RETURN1, RETURN2, .., to RETURNx. The next step is how to compose the LoRa Uplink Payload by these RETURNs. The command is **AT+DATAUP.**
467		-
468		-
	324	+To save the LoRaWAN network bandwidth, we might need to read data from different sensors and combine their valid value into a short payload.
469	469	)))
470	470
471	471	(((
472		-(% style="color:#037691" %)**Examples: AT+DATAUP=0**
473		-
474		-
	328	+This section describes how to achieve above goals.
475	475	)))
476	476
477	477	(((
478		-Compose the uplink payload with value returns in sequence and send with (% style="color:red" %)**A SIGNLE UPLINK**.
	332	+During each sampling, the RS485-BL can support 15 commands to read sensors. And combine the return to one or several uplink payloads.
479	479	)))
480	480
481	481	(((
482		-Final Payload is (% style="color:#4f81bd" %)**Battery Info+PAYVER + VALID Value from RETURN1 + Valid Value from RETURN2 + … + RETURNx**
	336	+**Command from RS485-BL to Sensor:**
483	483	)))
484	484
485	485	(((
486		-Where PAYVER is defined by AT+PAYVER, below is an example screen shot.
487		-
488		-
	340	+RS485-BL can send out pre-set max 15 strings via **AT+COMMAD1**, **ATCOMMAND2**,…, to **AT+COMMANDF** . All commands are of same grammar.
489	489	)))
490	490
491		-[[image:image-20220929111027-1.png||height="509" width="685"]](% title="Click and drag to resize" %)​
492		-
493		-
494		-(% style="color:#037691" %)**Examples: AT+DATAUP=1**
495		-
496		-
497		-Compose the uplink payload with value returns in sequence and send with (% style="color:red" %)**Multiply UPLINKs**.
498		-
499		-Final Payload is (% style="color:#4f81bd" %)**PAYVER + PAYLOAD COUNT + PAYLOAD# + DATA**
500		-
501		-
502		-~1. PAYVER: Defined by AT+PAYVER
503		-
504		-2. PAYLOAD COUNT: Total how many uplinks of this sampling.
505		-
506		-3. PAYLOAD#: Number of this uplink. (from 0,1,2,3…,to PAYLOAD COUNT)
507		-
508		-4. DATA: Valid value: max 8 bytes for each uplink so each uplink <= 11 bytes. For the last uplink, DATA will might less than 8 bytes
509		-
510		-
511		-(% aria-label="image-20220602155039-4.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220602155039-4.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
512		-
513		-
514		-So totally there will be 3 uplinks for this sampling, each uplink include 8 bytes DATA
515		-
516		-DATA1=RETURN1 Valid Value + the first two of Valid value of RETURN10= **20 20 0a 33 90 41 02 aa**
517		-
518		-DATA2=3^^rd^^ ~~ 10^^th^^ byte of Valid value of RETURN10= **05 81 0a 20 20 20 20 2d**
519		-
520		-DATA3=the rest of Valid value of RETURN10= **30**
521		-
522		-
523		-(% style="color:red" %)**Notice: In firmware v1.3, the Max bytes has been changed according to the max bytes in different Frequency Bands for lowest SF. As below:**
524		-
525		-
526		- ~* For AU915/AS923 bands, if UplinkDwell time=0, max 51 bytes for each uplink.
527		-
528		- * For AU915/AS923 bands, if UplinkDwell time=0, max 11 bytes for each uplink.
529		-
530		- * For US915 band, max 11 bytes for each uplink.
531		-
532		- ~* For all other bands: max 51 bytes for each uplink.
533		-
534		-
535		-(% style="color:red" %)** When AT+DATAUP=1, the maximum number of segments is 15, and the maximum total number of bytes is 1500;**
536		-
537		-(% style="color:red" %)** When AT+DATAUP=1 and AT+ADR=0, the maximum number of bytes of each payload is determined by the DR value. (Since v1.4.0)**
538		-
539		-
540		-
541		-Below are the uplink payloads:
542		-
543		-
544		-(% aria-label="1654157178836-407.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1654157178836-407.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
545		-
546		-
547		-
548		-=== 3.3.5 Uplink on demand ===
549		-
550		-
551		-Except uplink periodically, RS485-LN is able to uplink on demand. The server send downlink command to RS485-LN and RS485 will uplink data base on the command.
552		-
553		-(% style="color:blue" %)**Downlink control command:**
554		-
555		-(% style="color:#4472c4" %)** 0x08 command**(%%): Poll an uplink with current command set in RS485-LN.
556		-
557		-(% style="color:#4472c4" %)** 0xA8 command**(%%): Send a command to RS485-LN and uplink the output from sensors.
558		-
559		-
560		-
561		-=== 3.3.6 Uplink on Interrupt ===
562		-
563		-
564		-RS485-LN support external Interrupt uplink since hardware v1.2 release.
565		-
566		-
567		-(% aria-label="1654157342174-798.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1654157342174-798.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
568		-
569		-Connect the Interrupt pin to RS485-LN INT port and connect the GND pin to V- port. When there is a high voltage (Max 24v) on INT pin. Device will send an uplink packet.
570		-
571		-
572		-
573		-== 3.4 Uplink Payload ==
574		-
575		-
576		-(% border="1" cellspacing="5" style="background-color:#ffffcc; color:green; width:500px" %)
577		-|=(% scope="row" style="width: 60px;" %)(((
578		-Size(bytes)
579		-)))|(% style="width:80px" %)1|(% style="width:360px" %)(((
580		-Length depends on the return from the commands
581		-)))
582		-|=(% style="width: 90px;" %)(((
583		-Value
584		-)))|(% style="width:114px" %)(((
585		-PAYLOAD_VER
586		-)))|(% style="width:353px" %)(((
587		-If the valid payload is too long and exceed the maximum
588		-
589		-support payload length in server, server will show payload not
590		-
591		-provided in the LoRaWAN server.
592		-)))
593		-
594		-(% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]]
595		-
596		-(% title="Click and drag to resize" %)​
597		-
598		-Below is the decoder for the first 3 bytes. The rest bytes are dynamic depends on different RS485 sensors.
599		-
600		-
601		-
602		-== 3.5 Configure RS485-LN via AT or Downlink ==
603		-
604		-
605	605	(((
606		-User can configure RS485-LN via AT Commands or LoRaWAN Downlink Commands
	344	+**Handle return from sensors to RS485-BL**:
607	607	)))
608	608
609	609	(((
610		-There are two kinds of Commands:
	348	+After RS485-BL send out a string to sensor, RS485-BL will wait for the return from RS485 or TTL sensor. And user can specify how to handle the return, by **AT+DATACUT or AT+SEARCH commands**
611	611	)))
612	612
613	613	* (((
614		-(% style="color:#4f81bd" %)**Common Commands**(%%): They should be available for each sensor, such as: change uplink interval, reset device. For firmware v1.3, user can find what common commands it supports: [[AT Commands and Downlink Command>>doc:Main.End Device AT Commands and Downlink Command.WebHome]]
	352	+**AT+DATACUT**
615	615	)))
616	616
617		-* (((
618		-(% style="color:#4f81bd" %)**Sensor Related Commands**(%%): These commands are special designed for RS485-LN.  User can see these commands below:
619		-)))
620		-
621	621	(((
622		-
	356	+When the return value from sensor have fix length and we know which position the valid value we should get, we can use AT+DATACUT command.
623	623	)))
624	624
625		-
626		-
627		-=== 3.5.1 Common Commands ===
628		-
629		-
630		-They should be available for each of Dragino Sensors, such as: change uplink interval, reset device. For firmware v1.3, user can find what common commands it supports: [[End Device AT Commands and Downlink Command>>doc:Main.End Device AT Commands and Downlink Command.WebHome]]
631		-
632		-
633		-
634		-=== 3.5.2 Downlink Response(Since firmware v1.4) ===
635		-
636		-
637		-Response feature is added to the server's downlink, a special package with a FPort of 200 will be uploaded immediately after receiving the data sent by the server.
638		-
639		-
640		-(% aria-label="image-20220602163333-5.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220602163333-5.png||data-widget="image" height="263" width="1160"]]
641		-
642		-(% title="Click and drag to resize" %)​
643		-
644		-The first byte of this package represents whether the configuration is successful, 00 represents failure, 01 represents success. Except for the first byte, the other is the previous downlink. (All commands except A8 type commands are applicable)
645		-
646		-
647		-
648		-=== 3.5.3 Sensor related commands ===
649		-
650		-
651		-
652		-
653		-==== (% style="color:blue" %)**RS485 Debug Command**(%%) ====
654		-
655		-
656		-(((
657		-This command is used to configure the RS485 devices; they won't be used during sampling. Max Length of AT+CFGDEV is **40 bytes**.
658		-)))
659		-
660		-(((
661		-* (% style="color:#037691" %)**AT Command**
662		-
663		-(((
664		-(% style="color:#4472c4" %)** AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m**  (%%) m: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
665		-)))
666		-)))
667		-
668		-(((
669		-
670		-)))
671		-
672	672	* (((
673		-(% style="color:#037691" %)**Downlink Payload**
	360	+**AT+SEARCH**
674	674	)))
675	675
676	676	(((
677		-Format: (% style="color:#4472c4" %)** A8 MM NN XX XX XX XX YY**
	364	+When the return value from sensor is dynamic length and we are not sure which bytes the valid data is, instead, we know what value the valid value following. We can use AT+SEARCH to search the valid value in the return string.
678	678	)))
679	679
680	680	(((
681		-Where:
	368	+**Define wait timeout:**
682	682	)))
683	683
684		-* (((
685		-MM: 1: add CRC-16/MODBUS ; 0: no CRC
686		-)))
687		-* (((
688		-NN: The length of RS485 command
689		-)))
690		-* (((
691		-XX XX XX XX: RS485 command total NN bytes
692		-)))
693		-* (((
694	694	(((
695		-YY: How many bytes will be uplink from the return of this RS485 command,
	372	+Some RS485 device might has longer delay on reply, so user can use AT+CMDDL to set the timeout for getting reply after the RS485 command is sent. For example, AT+CMDDL1=1000 to send the open time to 1000ms
696	696	)))
697	697
698		-* (((
699		-if YY=0, RS485-LN will execute the downlink command without uplink;
700		-)))
701		-* (((
702		-if YY>0, RS485-LN will uplink total YY bytes from the output of this RS485 command; Fport=200
703		-)))
704		-* (((
705		-if YY=FF, RS485-LN will uplink RS485 output with the downlink command content; Fport=200.
706		-)))
707		-)))
708		-
709	709	(((
710		-
711		-
712		-(% style="color:blue" %)**Example 1:**  (%%) ~-~-> Configure without ask for uplink (YY=0)
	376	+After we got the valid value from each RS485 commands, we need to combine them together with the command **AT+DATAUP**.
713	713	)))
714	714
715		-(((
716		-To connect a Modbus Alarm with below commands.
717		-)))
	379	+**Examples:**
718	718
719		-* (((
720		-The command to active alarm is: 0A 05 00 04 00 01 4C B0. Where 0A 05 00 04 00 01 is the Modbus command to read the register 00 40 where stored the DI status. The 4C B0 is the CRC-16/MODBUS which calculate manually.
721		-)))
	381	+Below are examples for the how above AT Commands works.
722	722
723		-* (((
724		-The command to deactivate alarm is: 0A 05 00 04 00 00 8D 70. Where 0A 05 00 04 00 00 is the Modbus command to read the register 00 40 where stored the DI status. The 8D 70 is the CRC-16/MODBUS which calculate manually.
725		-)))
	383	+**AT+COMMANDx : **This command will be sent to RS485/TTL devices during each sampling, Max command length is 14 bytes. The grammar is:
726	726
727		-(((
728		-
	385	+(% border="1" class="table-bordered" %)
	386	+|(((
	387	+**AT+COMMANDx=xx xx xx xx xx xx xx xx xx xx xx xx,m**
729	729
730		-So if user want to use downlink command to control to RS485 Alarm, he can use:
731		-)))
	389	+**xx xx xx xx xx xx xx xx xx xx xx xx: The RS485 command to be sent**
732	732
733		-(((
734		-(% style="color:#4f81bd" %)**A8 01 06 0A 05 00 04 00 01 00**(%%): to activate the RS485 Alarm
	391	+**m: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command**
735	735	)))
736	736
737	737	(((
738		-(% style="color:#4f81bd" %)**A8 01 06 0A 05 00 04 00 00 00**(%%): to deactivate the RS485 Alarm
	395	+For example, if we have a RS485 sensor. The command to get sensor value is: 01 03 0B B8 00 02 46 0A. Where 01 03 0B B8 00 02 is the Modbus command to read the register 0B B8 where stored the sensor value. The 46 0A is the CRC-16/MODBUS which calculate manually.
739	739	)))
740	740
741	741	(((
742		-A8 is type code and 01 means add CRC-16/MODBUS at the end, the 3^^rd^^ byte is 06, means the next 6 bytes are the command to be sent to the RS485 network, the final byte 00 means this command don’t need to acquire output.
	399	+In the RS485-BL, we should use this command AT+COMMAND1=01 03 0B B8 00 02,1 for the same.
743	743	)))
744	744
745	745	(((
746		-
	403	+**AT+SEARCHx**: This command defines how to handle the return from AT+COMMANDx.
747	747	)))
748	748
749		-(((
750		-(% style="color:blue" %)**Example 2:**  (%%) ~-~-> Configure with requesting uplink and original downlink command (**YY=FF**)
751		-)))
	406	+(% border="1" class="table-bordered" %)
	407	+|(((
	408	+**AT+SEARCHx=aa,xx xx xx xx xx**
752	752
753		-(((
754		-User in IoT server send a downlink command: (% style="color:#4f81bd" %)**A8 01 06 0A 08 00 04 00 01 YY**
755		-)))
	410	+* **aa: 1: prefix match mode; 2: prefix and suffix match mode**
	411	+* **xx xx xx xx xx: match string. Max 5 bytes for prefix and 5 bytes for suffix**
756	756
757		-(((
758	758
759	759	)))
760	760
761		-(((
762		-(((
763		-RS485-LN got this downlink command and send (% style="color:#4f81bd" %)**0A 08 00 04 00 01 **(%%)to Modbus network. One of the RS485 sensor in the network send back Modbus reply **0A 08 00 04 00 00**. RS485-LN get this reply and combine with the original downlink command and uplink. The uplink message is:  **A8** (% style="color:#4f81bd" %)**0A 08 00 04 00  **(% style="color:red" %)**01 06** ** **(% style="color:green" %)**0A 08 00 04 00 00**
764		-)))
	416	+**Examples:**
765	765
766		-
767		-)))
	418	+~1. For a return string from AT+COMMAND1: 16 0c 1e 56 34 2e 30 58 5f 36 41 30 31 00 49
768	768
769		-(((
770		- (% aria-label="1654159460680-153.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1654159460680-153.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
771		-)))
	420	+If we set AT+SEARCH1=1,1E 56 34.      (max 5 bytes for prefix)
772	772
	422	+The valid data will be all bytes after 1E 56 34 , so it is (% style="background-color:yellow" %)** 2e 30 58 5f 36 41 30 31 00 49**
773	773
	424	+[[image:1653269403619-508.png]]
774	774
	426	+2. For a return string from AT+COMMAND1:  16 0c 1e 56 34 2e 30 58 5f 36 41 30 31 00 49
775	775
776		-==== (% style="color:blue" %)**Set Payload version**(%%) ====
	428	+If we set AT+SEARCH1=2, 1E 56 34+31 00 49
777	777
	430	+Device will search the bytes between 1E 56 34 and 31 00 49. So it is (% style="background-color:yellow" %)** 2e 30 58 5f 36 41 30**
778	778
779		-(((
780		-This is the first byte of the uplink payload. RS485-LN can connect to different sensors. User can set the PAYVER field to tell server how to decode the current payload.
781		-)))
	432	+[[image:1653269438444-278.png]]
782	782
783		-(((
784		-* (% style="color:#037691" %)**AT Command:**
	434	+**AT+DATACUTx : **This command defines how to handle the return from AT+COMMANDx, max return length is 45 bytes.
785	785
786		-(% style="color:#4472c4" %)** AT+PAYVER:    ** (%%) Set PAYVER field = 1
	436	+|(((
	437	+**AT+DATACUTx=a,b,c**
787	787
788		-
	439	+* **a: length for the return of AT+COMMAND**
	440	+* **b:1: grab valid value by byte, max 6 bytes. 2: grab valid value by bytes section, max 3 sections.**
	441	+* **c: define the position for valid value.  **
789	789	)))
790	790
791		-* (((
792		-(% style="color:#037691" %)**Downlink Payload:**
793		-)))
	444	+Examples:
794	794
795		-(((
796		-(% style="color:#4472c4" %)** 0xAE 01** (%%) ~-~->  Set PAYVER field =  0x01
797		-)))
	446	+* Grab bytes:
798	798
799		-(((
800		-(% style="color:#4472c4" %)** 0xAE 0F**   (%%) ~-~->  Set PAYVER field =  0x0F
801		-)))
	448	+[[image:1653269551753-223.png||height="311" width="717"]]
802	802
	450	+* Grab a section.
803	803
804		-**1 )  Add the interrupt flag at the highest bit of the Payver byte, that is, Byte7 of the first byte. (Since v1.4.0)**
	452	+[[image:1653269568276-930.png||height="325" width="718"]]
805	805
	454	+* Grab different sections.
806	806
807		-[[image:image-20220824145428-2.png||height="168" width="1300"]]
	456	+[[image:1653269593172-426.png||height="303" width="725"]]
808	808
	458	+(% style="color:red" %)**Note:**
809	809
	460	+AT+SEARCHx and AT+DATACUTx can be used together, if both commands are set, RS485-BL will first process AT+SEARCHx on the return string and get a temporary string, and then process AT+DATACUTx on this temporary string to get the final payload. In this case, AT+DATACUTx need to set to format AT+DATACUTx=0,xx,xx where the return bytes set to 0.
810	810
811		-**2 )  if the data intercepted by AT+DATACUT or AT+MBFUN is empty, it will display NULL, and the payload will be filled with n FFs.**
	462	+Example:
812	812
	464	+(% style="color:red" %)AT+COMMAND1=11 01 1E D0,0
813	813
814		-[[image:image-20220824145428-3.png||height="308" width="1200"]]
	466	+(% style="color:red" %)AT+SEARCH1=1,1E 56 34
815	815
	468	+(% style="color:red" %)AT+DATACUT1=0,2,1~~5
816	816
	470	+(% style="color:red" %)Return string from AT+COMMAND1: 16 0c 1e 56 34 2e 30 58 5f 36 41 30 31 00 49
817	817
	472	+(% style="color:red" %)String after SEARCH command: 2e 30 58 5f 36 41 30 31 00 49
818	818
819		-==== (% style="color:blue" %)**Set RS485 Sampling Commands**(%%) ====
	474	+(% style="color:red" %)Valid payload after DataCUT command: 2e 30 58 5f 36
820	820
	476	+[[image:1653269618463-608.png]]
821	821
822		-(((
823		-AT+COMMANDx or AT+DATACUTx
824		-)))
	478	+=== 3.3.4 Compose the uplink payload ===
825	825
826	826	(((
827		-These three commands are used to configure how the RS485-LN polling data from Modbus device. Detail of usage please see : [[polling RS485 device>>||anchor="H3.3.3Configurereadcommandsforeachsampling"]].
	481	+Through AT+COMMANDx and AT+DATACUTx we got valid value from each RS485 commands, Assume these valid value are RETURN1, RETURN2, .., to RETURNx. The next step is how to compose the LoRa Uplink Payload by these RETURNs. The command is **AT+DATAUP.**
828	828	)))
829	829
830	830	(((
831		-
	485	+(% style="color:#4f81bd" %)**Examples: AT+DATAUP=0**
832	832	)))
833	833
834		-* (((
835		-(% style="color:#037691" %)**AT Command:**
836		-)))
837		-
838		-(% style="color:#4472c4" %)** AT+COMMANDx:    ** (%%) Configure RS485 read command to sensor.
839		-
840		-(% style="color:#4472c4" %)** AT+DATACUTx:        **(%%) Configure how to handle return from RS485 devices.
841		-
842		-
843		-* (((
844		-(% style="color:#037691" %)**Downlink Payload:**
845		-)))
846		-
847	847	(((
848		-(% style="color:#4472c4" %)** 0xAF**(%%) downlink command can be used to set AT+COMMANDx or AT+DATACUTx.
849		-
850		-
	489	+Compose the uplink payload with value returns in sequence and send with (% style="color:red" %)**A SIGNLE UPLINK**.
851	851	)))
852	852
853	853	(((
854		-(% style="color:red" %)**Note : if user use AT+COMMANDx to add a new command, he also need to send AT+DATACUTx downlink.**
855		-
856		-
	493	+Final Payload is
857	857	)))
858	858
859	859	(((
860		-Format: (% style="color:#4472c4" %)** AF MM NN LL XX XX XX XX YY**
	497	+(% style="color:#4f81bd" %)**Battery Info+PAYVER + VALID Value from RETURN1 + Valid Value from RETURN2 + … + RETURNx**
861	861	)))
862	862
863	863	(((
864		-Where:
	501	+Where PAYVER is defined by AT+PAYVER, below is an example screen shot.
865	865	)))
866	866
867		-* (((
868		-MM: the ATCOMMAND or AT+DATACUT to be set. Value from 01 ~~ 0F,
869		-)))
870		-* (((
871		-NN:  0: no CRC; 1: add CRC-16/MODBUS ; 2: set the AT+DATACUT value.
872		-)))
873		-* (((
874		-LL:  The length of AT+COMMAND or AT+DATACUT command
875		-)))
876		-* (((
877		-XX XX XX XX: AT+COMMAND or AT+DATACUT command
878		-)))
879		-* (((
880		-YY:  If YY=0, RS485-LN will execute the downlink command without uplink; if YY=1, RS485-LN will execute an uplink after got this command.
881		-)))
	504	+[[image:1653269759169-150.png||height="513" width="716"]]
882	882
883		-(((
884		-
	506	+(% style="color:#4f81bd" %)**Examples: AT+DATAUP=1**
885	885
886		-**Example:**
887		-)))
	508	+Compose the uplink payload with value returns in sequence and send with (% style="color:red" %)**Multiply UPLINKs**.
888	888
889		-(((
890		-(% style="color:#037691" %)**AF 03 01 06 0A 05 00 04 00 01 00**(%%): Same as AT+COMMAND3=0A 05 00 04 00 01,1
891		-)))
	510	+Final Payload is
892	892
893		-(((
894		-(% style="color:#037691" %)**AF 03 02 06**(% style="color:orange" %)** 10 **(% style="color:red" %)**01 **(% style="color:green" %)**05 06 09 0A**(% style="color:#037691" %)** 00**(%%): Same as AT+DATACUT3=(% style="color:orange" %)**16**(%%),(% style="color:red" %)**1**(%%),(% style="color:green" %)**5+6+9+10**
895		-)))
	512	+(% style="color:#4f81bd" %)**Battery Info+PAYVER + PAYLOAD COUNT + PAYLOAD# + DATA**
896	896
897		-(((
898		-(% style="color:#037691" %)**AF 03 02 06 **(% style="color:orange" %)**0B**(% style="color:red" %)** 02 **(% style="color:green" %)**05 07 08 0A **(% style="color:#037691" %)**00**(%%): Same as AT+DATACUT3=(% style="color:orange" %)**11**(%%),(% style="color:red" %)**2**(%%),(% style="color:green" %)**5~~7+8~~10**
899		-)))
	514	+1. Battery Info (2 bytes): Battery voltage
	515	+1. PAYVER (1 byte): Defined by AT+PAYVER
	516	+1. PAYLOAD COUNT (1 byte): Total how many uplinks of this sampling.
	517	+1. PAYLOAD# (1 byte): Number of this uplink. (from 0,1,2,3…,to PAYLOAD COUNT)
	518	+1. DATA: Valid value: max 6 bytes(US915 version here, Notice*!) for each uplink so each uplink <= 11 bytes. For the last uplink, DATA will might less than 6 bytes
900	900
	520	+[[image:1653269916228-732.png||height="433" width="711"]]
901	901
902	902
	523	+So totally there will be 3 uplinks for this sampling, each uplink includes 6 bytes DATA
903	903
904		-==== (% style="color:blue" %)**Fast command to handle MODBUS device**(%%) ====
	525	+DATA1=RETURN1 Valid Value = (% style="background-color:green; color:white" %)20 20 0a 33 90 41
905	905
	527	+DATA2=1^^st^^ ~~ 6^^th^^ byte of Valid value of RETURN10=(% style="background-color:green; color:white" %) 02 aa 05 81 0a 20
906	906
907		-(((
908		-(% style="color:#4472c4" %)** AT+MBFUN**(%%) is valid since v1.3 firmware version. The command is for fast configure to read Modbus devices. It is only valid for the devices which follow the [[MODBUS-RTU protocol>>url:https://www.modbustools.com/modbus.html]].
909		-)))
	529	+DATA3=7^^th^^ ~~ 11^^th^^ bytes of Valid value of RETURN10 = (% style="background-color:green; color:white" %)20 20 20 2d 30
910	910
911		-(((
912		-This command is valid since v1.3 firmware version
913		-)))
	531	+Below are the uplink payloads:
914	914
915		-(((
916		-AT+MBFUN can auto read the Modbus function code: 01, 02, 03 or 04. AT+MBFUN has lower priority vs AT+DATACUT command. If AT+DATACUT command is configured, AT+MBFUN will be ignore.
917		-)))
	533	+[[image:1653270130359-810.png]]
918	918
919		-(((
920		-
921		-)))
922	922
923		-(((
924		-**Example:**
925		-)))
	536	+(% style="color:red" %)**Notice: the Max bytes is according to the max support bytes in different Frequency Bands for lowest SF. As below:**
926	926
927		-* (((
928		-AT+MBFUN=1 and AT+DATACUT1/AT+DATACUT2  are not configure (0,0,0). So RS485-LN.
929		-)))
930		-* (((
931		-AT+COMMAND1= 01 03 00 10 00 08,1  ~-~-> read slave address 01 , function code 03, start address 00 01, quantity of registers 00 08.
932		-)))
933		-* (((
934		-AT+COMMAND2= 01 02 00 40 00 10,1  ~-~-> read slave address 01 , function code 02, start address 00 40, quantity of inputs 00 10.
	538	+ ~* For AU915/AS923 bands, if UplinkDwell time=0, max 51 bytes for each uplink ( so 51 -5 = 46 max valid date)
935	935
936		-
937		-)))
	540	+ * For AU915/AS923 bands, if UplinkDwell time=1, max 11 bytes for each uplink ( so 11 -5 = 6 max valid date).
938	938
939		-(% aria-label="image-20220602165351-6.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220602165351-6.png||data-widget="image"]]
	542	+ * For US915 band, max 11 bytes for each uplink ( so 11 -5 = 6 max valid date).
940	940
941		-(% title="Click and drag to resize" %)​
	544	+ ~* For all other bands: max 51 bytes for each uplink  ( so 51 -5 = 46 max valid date).
942	942
943		-(% aria-label="image-20220602165351-7.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220602165351-7.png||data-widget="image"]](% title="Click and drag to resize" %)​
	546	+=== 3.3.5 Uplink on demand ===
944	944
	548	+Except uplink periodically, RS485-BL is able to uplink on demand. The server sends downlink command to RS485-BL and RS485 will uplink data base on the command.
945	945
	550	+Downlink control command:
946	946
	552	+[[0x08 command>>path:#downlink_08]]: Poll an uplink with current command set in RS485-BL.
947	947
948		-==== (% style="color:blue" %)**RS485 command timeout**(%%) ====
	554	+[[0xA8 command>>path:#downlink_A8]]: Send a command to RS485-BL and uplink the output from sensors.
949	949
950	950
951		-(((
952		-Some Modbus device has slow action to send replies. This command is used to configure the RS485-LN to use longer time to wait for their action.
953		-)))
954	954
955		-(((
956		-Default value: 0, range:  0 ~~ 65 seconds
957		-)))
	558	+1.
	559	+11.
	560	+111. Uplink on Interrupt
958	958
959		-(((
960		-* (% style="color:#037691" %)** AT Command:**
	562	+Put the interrupt sensor between 3.3v_out and GPIO ext.[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image022.png]]
961	961
962		-(% style="color:#4472c4" %)** AT+CMDDLaa=hex(bb cc)*1000**
963		-)))
	564	+AT+INTMOD=0  Disable Interrupt
964	964
965		-(((
966		-
	566	+AT+INTMOD=1  Interrupt trigger by rising or falling edge.
967	967
968		-**Example:**
969		-)))
	568	+AT+INTMOD=2  Interrupt trigger by falling edge. ( Default Value)
970	970
971		-(((
972		-(% style="color:#4472c4" %)** AT+CMDDL1=1000** (%%)to send the open time to 1000ms
973		-)))
	570	+AT+INTMOD=3  Interrupt trigger by rising edge.
974	974
975		-(((
976		-
977		-)))
978	978
979		-* (((
980		-(% style="color:#037691" %)** Downlink Payload:**
981		-)))
	573	+1.
	574	+11. Uplink Payload
982	982
983		-(((
984		-(% style="color:#4472c4" %)** 0x AA aa bb cc**(%%) Same as: AT+CMDDLaa=hex(bb cc)*1000
985		-)))
	576	+|**Size(bytes)**|**2**|**1**|**Length depends on the return from the commands**
	577	+|Value|(((
	578	+Battery(mV)
986	986
987		-(((
988		-
	580	+&
989	989
990		-**Example:**
991		-)))
	582	+Interrupt _Flag
	583	+)))|(((
	584	+PAYLOAD_VER
992	992
993		-(((
994		-**0xAA 01 00 01**  ~-~-> Same as  **AT+CMDDL1=1000 ms**
995		-)))
	586	+
	587	+)))|If the valid payload is too long and exceed the maximum support payload length in server, server will show payload not provided in the LoRaWAN server.
996	996
	589	+Below is the decoder for the first 3 bytes. The rest bytes are dynamic depends on different RS485 sensors.
997	997
998	998
	592	+function Decoder(bytes, port) {
999	999
1000		-==== (% style="color:blue" %)**Uplink payload mode**(%%) ====
	594	+~/~/Payload Formats of RS485-BL Deceive
1001	1001
	596	+return {
1002	1002
1003		-(((
1004		-Define to use one uplink or multiple uplinks for the sampling.
1005		-)))
	598	+ ~/~/Battery,units:V
1006	1006
1007		-(((
1008		-The use of this command please see: [[Compose Uplink payload>>||anchor="H3.3.4Composetheuplinkpayload"]]
	600	+ BatV:((bytes[0]<<8 | bytes[1])&0x7fff)/1000,
1009	1009
1010		-
1011		-)))
	602	+ ~/~/GPIO_EXTI
1012	1012
1013		-(((
1014		-* (% style="color:#037691" %)** AT Command:**
	604	+ EXTI_Trigger:(bytes[0] & 0x80)? "TRUE":"FALSE",
1015	1015
1016		-(% style="color:#4472c4" %)** AT+DATAUP=0**
	606	+ ~/~/payload of version
1017	1017
1018		-(% style="color:#4472c4" %)** AT+DATAUP=1**
	608	+ Pay_ver:bytes[2],
1019	1019
1020		-
1021		-)))
	610	+ };
1022	1022
1023		-(% style="color:#4472c4" %)** 0xAD 01 00 00 14** (%%) **~-~->** Same as AT+DATAUP=1，20000  ~/~/  (00 00 14 is 20 seconds)
	612	+ }
1024	1024
1025		-Each uplink is sent to the server at 20-second intervals when segmented.
1026	1026
1027	1027
1028		-* (((
1029		-(% style="color:#037691" %)** Downlink Payload:**
1030		-)))
1031	1031
1032		-(% style="color:#4472c4" %)** 0xAD 00** (%%) **~-~->** Same as AT+DATAUP=0
1033	1033
1034		-(% style="color:#4472c4" %)** 0xAD 01**  (%%) **~-~->** Same as AT+DATAUP=1  ~/~/Each uplink is sent to the server one after the other as it is segmented.
1035	1035
1036	1036
1037		-* (((
1038		-(% style="color:#037691" %)** AT Command:**
1039		-)))
	620	+TTN V3 uplink screen shot.
1040	1040
1041		-(% style="color:#4472c4" %)** AT+DATAUP=1,Timeout**
	622	+[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image023.png]]
1042	1042
	624	+1.
	625	+11. Configure RS485-BL via AT or Downlink
1043	1043
1044		-* (((
1045		-(% style="color:#037691" %)** Downlink Payload:**
1046		-)))
	627	+User can configure RS485-BL via [[AT Commands >>path:#_​Using_the_AT]]or LoRaWAN Downlink Commands
1047	1047
1048		-(% style="color:#4472c4" %)** 0xAD 01 00 00 14** (%%) **~-~->** Same as AT+DATAUP=1，20000  ~/~/  (00 00 14 is 20 seconds)
	629	+There are two kinds of Commands:
1049	1049
1050		-Each uplink is sent to the server at 20-second intervals when segmented.
	631	+* **Common Commands**: They should be available for each sensor, such as: change uplink interval, reset device. For firmware v1.3, user can find what common commands it supports: http:~/~/wiki.dragino.com/index.php?title=End_Device_AT_Commands_and_Downlink_Commands
1051	1051
	633	+* **Sensor Related Commands**: These commands are special designed for RS485-BL.  User can see these commands below:
1052	1052
	635	+1.
	636	+11.
	637	+111. Common Commands:
1053	1053
	639	+They should be available for each of Dragino Sensors, such as: change uplink interval, reset device. For firmware v1.3, user can find what common commands it supports: [[http:~~/~~/wiki.dragino.com/index.php?title=End_Device_AT_Commands_and_Downlink_Commands>>url:http://wiki.dragino.com/index.php?title=End_Device_AT_Commands_and_Downlink_Commands]]
1054	1054
1055		-==== (% style="color:blue" %)**Manually trigger an Uplink**(%%) ====
1056	1056
	642	+1.
	643	+11.
	644	+111. Sensor related commands:
1057	1057
1058		-(((
1059		-Ask device to send an uplink immediately.
1060		-)))
	646	+==== Choose Device Type (RS485 or TTL) ====
1061	1061
1062		-* (((
1063		-(% style="color:#037691" %)** AT Command:**
1064		-)))
	648	+RS485-BL can connect to either RS485 sensors or TTL sensor. User need to specify what type of sensor need to connect.
1065	1065
1066		-(((
1067		-No AT Command for this, user can press the [[ACT button>>||anchor="H3.7Buttons"]] for 1 second for the same.
1068		-)))
	650	+* AT Command
1069	1069
1070		-(((
1071		-
1072		-)))
	652	+**AT+MOD=1** ~/~/ Set to support RS485-MODBUS type sensors. User can connect multiply RS485 , Modbus sensors to the A / B pins.
1073	1073
1074		-* (((
1075		-(% style="color:#037691" %)** Downlink Payload:**
1076		-)))
	654	+**AT+MOD=2** ~/~/ Set to support TTL Level sensors, User can connect one TTL Sensor to the TXD/RXD/GND pins.
1077	1077
1078		-(((
1079		-(% style="color:#4472c4" %)** 0x08 FF**(%%), RS485-LN will immediately send an uplink.
1080		-)))
1081	1081
	657	+* Downlink Payload
1082	1082
	659	+**0A aa**     à same as AT+MOD=aa
1083	1083
1084	1084
1085		-==== (% style="color:blue" %)**Clear RS485 Command**(%%) ====
1086	1086
	663	+==== [[RS485 Debug Command>>path:#downlink_A8]] (AT+CFGDEV) ====
1087	1087
1088		-(((
1089		-The AT+COMMANDx and AT+DATACUTx settings are stored in special location, user can use below command to clear them.
	665	+This command is used to configure the RS485 or TTL sensors; they won’t be used during sampling.
1090	1090
1091		-
1092		-)))
	667	+* AT Command
1093	1093
1094		-* (((
1095		-(% style="color:#037691" %)** AT Command:**
1096		-)))
	669	+AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
1097	1097
1098		-(((
1099		-(% style="color:#4472c4" %)** AT+CMDEAR=mm,nn** (%%) mm: start position of erase ,nn: stop position of erase
1100		-)))
	671	+m: 0: no CRC; 1: add CRC-16/MODBUS in the end of this command.
1101	1101
1102		-(((
1103		-
1104	1104
1105		-Etc. AT+CMDEAR=1,10 means erase AT+COMMAND1/AT+DATACUT1 to AT+COMMAND10/AT+DATACUT10
1106		-)))
1107	1107
1108		-(((
1109		-Example screen shot after clear all RS485 commands.
1110		-)))
	675	+* Downlink Payload
1111	1111
1112		-(((
1113		-
1114		-)))
	677	+Format: A8 MM NN XX XX XX XX YY
1115	1115
1116		-(((
1117		-The uplink screen shot is:
1118		-)))
	679	+Where:
1119	1119
1120		-(% aria-label="1654160691922-496.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1654160691922-496.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
	681	+* MM: 1: add CRC-16/MODBUS ; 0: no CRC
	682	+* NN: The length of RS485 command
	683	+* XX XX XX XX: RS485 command total NN bytes
	684	+* YY: How many bytes will be uplink from the return of this RS485 command, if YY=0, RS485-BL will execute the downlink command without uplink; if YY>0, RS485-BL will uplink total YY bytes from the output of this RS485 command
1121	1121
	686	+**Example 1:**
1122	1122
1123		-* (((
1124		-(% style="color:#037691" %)** Downlink Payload:**
1125		-)))
	688	+To connect a Modbus Alarm with below commands.
1126	1126
1127		-(((
1128		-(% style="color:#4472c4" %)** 0x09 aa bb** (%%) same as AT+CMDEAR=aa,bb
1129		-)))
	690	+* The command to active alarm is: 0A 05 00 04 00 01 4C B0. Where 0A 05 00 04 00 01 is the Modbus command to read the register 00 40 where stored the DI status. The 4C B0 is the CRC-16/MODBUS which calculate manually.
1130	1130
	692	+* The command to deactivate alarm is: 0A 05 00 04 00 00 8D 70. Where 0A 05 00 04 00 00 is the Modbus command to read the register 00 40 where stored the DI status. The 8D 70 is the CRC-16/MODBUS which calculate manually.
1131	1131
	694	+So if user want to use downlink command to control to RS485 Alarm, he can use:
1132	1132
	696	+**A8 01 06 0A 05 00 04 00 01 00**: to activate the RS485 Alarm
1133	1133
1134		-==== (% style="color:blue" %)**Set Serial Communication Parameters**(%%) ====
	698	+**A8 01 06 0A 05 00 04 00 00 00**: to deactivate the RS485 Alarm
1135	1135
	700	+A8 is type code and 01 means add CRC-16/MODBUS at the end, the 3^^rd^^ byte is 06, means the next 6 bytes are the command to be sent to the RS485 network, the final byte 00 means this command don’t need to acquire output.
1136	1136
1137		-(((
1138		-Set the Rs485 serial communication parameters:
1139		-)))
1140	1140
1141		-(((
1142		-(% style="color:#037691" %)**AT Command:**
1143		-)))
	703	+**Example 2:**
1144	1144
1145		-(((
1146		-* Set Baud Rate
1147		-)))
	705	+Check TTL Sensor return:
1148	1148
1149		-(% style="color:#4472c4" %)** AT+BAUDR=9600** (%%) ~/~/  Options: (200~~115200)  When using low baud rate or receiving multiple bytes, you need to use AT+CMDDL to increase the receive timeout (the default receive timeout is 400ms), otherwise data will be lost
	707	+[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image024.png]]
1150	1150
1151	1151
1152		-(((
1153		-* Set UART Parity
1154		-)))
1155	1155
1156		-(% style="color:#4472c4" %)** AT+PARITY=0** (%%) ~/~/  Option: 0: no parity, 1: odd parity, 2: even parity
1157	1157
	712	+==== Set Payload version ====
1158	1158
1159		-(((
1160		-* Set STOPBIT
1161		-)))
	714	+This is the first byte of the uplink payload. RS485-BL can connect to different sensors. User can set the PAYVER field to tell server how to decode the current payload.
1162	1162
1163		-(% style="color:#4472c4" %)** AT+STOPBIT=0** (%%) ~/~/  Option: 0 for 1bit; 1 for 1.5 bit ; 2 for 2 bits
	716	+* AT Command:
1164	1164
	718	+AT+PAYVER: Set PAYVER field = 1
1165	1165
1166		-(((
1167		-(% style="color:#037691" %)**Downlink Payload:**
1168		-)))
1169	1169
1170		-(((
1171		-(% style="color:#4472c4" %)** A7 01 aa bb**:   (%%) Same  AT+BAUDR=hex(aa bb)*100
1172		-)))
	721	+* Downlink Payload:
1173	1173
1174		-(((
1175		-**Example:**
1176		-)))
	723	+0xAE 01   à Set PAYVER field =  0x01
1177	1177
1178		-* (((
1179		-A7 01 00 60  same as AT+BAUDR=9600
1180		-)))
1181		-* (((
1182		-A7 01 04 80  same as AT+BAUDR=115200
1183		-)))
	725	+0xAE 0F   à Set PAYVER field =  0x0F
1184	1184
1185		-(((
1186		-* A7 02 aa:  Same as  AT+PARITY=aa  (aa value: 00 , 01 or 02)
1187		-)))
1188	1188
1189		-(((
1190		-* A7 03 aa:  Same as  AT+STOPBIT=aa  (aa value: 00 , 01 or 02)
1191		-)))
	728	+==== Set RS485 Sampling Commands ====
1192	1192
	730	+AT+COMMANDx, AT+DATACUTx and AT+SEARCHx
1193	1193
	732	+These three commands are used to configure how the RS485-BL polling data from Modbus device. Detail of usage please see : [[polling RS485 device>>path:#polling_485]].
1194	1194
1195	1195
1196		-==== (% style="color:blue" %)**Configure Databit (Since Version 1.4.0)**(%%) ====
	735	+* AT Command:
1197	1197
1198		-* (((
1199		-(% style="color:#037691" %)** AT Command:**
1200		-)))
	737	+AT+COMMANDx: Configure RS485 read command to sensor.
1201	1201
1202		-**~ AT+DATABIT=7    **~/~/ Set the data bits to 7
	739	+AT+DATACUTx: Configure how to handle return from RS485 devices.
1203	1203
1204		-**~ AT+DATABIT=8    **~/~/ Set the data bits to 8
	741	+AT+SEARCHx: Configure search command
1205	1205
1206		-* (((
1207		-(% style="color:#037691" %)**Downlink Payload:**
1208		-)))
1209	1209
1210		-**~ A7 04 07**: Same as  AT+DATABIT=7
	744	+* Downlink Payload:
1211	1211
1212		-**~ A7 04 08**: Same as  AT+DATABIT=8
	746	+0xAF downlink command can be used to set AT+COMMANDx or AT+DATACUTx.
1213	1213
	748	+Note: if user use AT+COMMANDx to add a new command, he also need to send AT+DATACUTx downlink.
1214	1214
	750	+Format: AF MM NN LL XX XX XX XX YY
1215	1215
1216		-==== (% style="color:blue" %)**Encrypted payload**(%%) ====
	752	+Where:
1217	1217
1218		-(((
1219		-
1220		-)))
	754	+* MM: the ATCOMMAND or AT+DATACUT to be set. Value from 01 ~~ 0F,
	755	+* NN: 0: no CRC; 1: add CRC-16/MODBUS ; 2: set the AT+DATACUT value.
	756	+* LL: The length of AT+COMMAND or AT+DATACUT command
	757	+* XX XX XX XX: AT+COMMAND or AT+DATACUT command
	758	+* YY: If YY=0, RS485-BL will execute the downlink command without uplink; if YY=1, RS485-BL will execute an uplink after got this command.
1221	1221
1222		-* (((
1223		-(% style="color:#037691" %)** AT Command:**
1224		-)))
	760	+Example:
1225	1225
1226		-(% style="color:#4472c4" %)** AT+DECRYPT=1  ** (%%) ~/~/ The payload is uploaded without encryption
	762	+**AF 03 01 06 0A 05 00 04 00 01 00**: Same as AT+COMMAND3=0A 05 00 04 00 01,1
1227	1227
1228		-(% style="color:#4472c4" %)** AT+DECRYPT=0  ** (%%) ~/~/ Encrypt when uploading payload (default)
	764	+**AF 03 02 06 10 01 05 06 09 0A 00**: Same as AT+DATACUT3=**16**,**1**,**5+6+9+10**
1229	1229
	766	+**AF 03 02 06 0B 02 05 07 08 0A 00**: Same as AT+DATACUT3=**11**,**2**,**5~~7+8~~10**
1230	1230
1231	1231
	769	+0xAB downlink command can be used for set AT+SEARCHx
1232	1232
1233		-==== (% style="color:blue" %)**Get sensor value**(%%) ====
	771	+Example: **AB aa 01 03 xx xx xx** (03 here means there are total 3 bytes after 03) So
1234	1234
	773	+* AB aa 01 03 xx xx xx  same as AT+SEARCHaa=1,xx xx xx
	774	+* AB aa 02 03 xx xx xx 02 yy yy(03 means there are 3 bytes after 03, they are xx xx xx;02 means there are 2 bytes after 02, they are yy yy) so the commands
1235	1235
1236		-* (((
1237		-(% style="color:#037691" %)** AT Command:**
1238		-)))
	776	+**AB aa 02 03 xx xx xx 02 yy yy**  same as **AT+SEARCHaa=2,xx xx xx+yy yy**
1239	1239
1240		-(% style="color:#4472c4" %)** AT+GETSENSORVALUE=0  **(%%) ~/~/ The serial port gets the reading of the current sensor
1241	1241
1242		-(% style="color:#4472c4" %)** AT+GETSENSORVALUE=1  **(%%) ~/~/ The serial port gets the current sensor reading and uploads it.
	779	+==== Fast command to handle MODBUS device ====
1243	1243
	781	+AT+MBFUN is valid since v1.3 firmware version. The command is for fast configure to read Modbus devices. It is only valid for the devices which follow the [[MODBUS-RTU protocol>>url:https://www.modbustools.com/modbus.html]].
1244	1244
	783	+This command is valid since v1.3 firmware version
1245	1245
1246	1246
1247		-==== (% style="color:blue" %)**Resets the downlink packet count**(%%) ====
	786	+AT+MBFUN has only two value:
1248	1248
	788	+* AT+MBFUN=1: Enable Modbus reading. And get response base on the MODBUS return
1249	1249
1250		-* (((
1251		-(% style="color:#037691" %)** AT Command:**
1252		-)))
	790	+AT+MBFUN=1, device can auto read the Modbus function code: 01, 02, 03 or 04. AT+MBFUN has lower priority vs AT+DATACUT command. If AT+DATACUT command is configured, AT+MBFUN will be ignore.
1253	1253
1254		-(% style="color:#4472c4" %)** AT+DISFCNTCHECK=0  **(%%) ~/~/  When the downlink packet count sent by the server is less than the node downlink packet count or exceeds 16384, the node will no longer receive downlink packets (default)
	792	+* AT+MBFUN=0: Disable Modbus fast reading.
1255	1255
1256		-(% style="color:#4472c4" %)** AT+DISFCNTCHECK=1  **(%%) ~/~/  When the downlink packet count sent by the server is less than the node downlink packet count or exceeds 16384, the node resets the downlink packet count and keeps it consistent with the server downlink packet count.
	794	+Example:
1257	1257
	796	+* AT+MBFUN=1 and AT+DATACUT1/AT+DATACUT2 are not configure (0,0,0).
	797	+* AT+COMMAND1= 01 03 00 10 00 08,1 ~-~-> read slave address 01 , function code 03, start address 00 01, quantity of registers 00 08.
	798	+* AT+COMMAND2= 01 02 00 40 00 10,1 ~-~-> read slave address 01 , function code 02, start address 00 40, quantity of inputs 00 10.
1258	1258
	800	+[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image025.png]]
1259	1259
1260	1260
1261		-==== (% style="color:blue" %)**When the limit bytes are exceeded, upload in batches**(%%) ====
	803	+[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image026.png]]
1262	1262
1263	1263
1264		-* (((
1265		-(% style="color:#037691" %)** AT Command:**
1266		-)))
	806	+* Downlink Commands:
1267	1267
1268		- (% style="color:#4472c4" %)** AT+DISMACANS=0**  (%%) ~/~/  When the MACANS of the reply server plus the payload exceeds the maximum number of bytes of 11 bytes (DR0 of US915, DR2 of AS923, DR2 of AU195), the node will send a packet with a payload of 00 and a port of 4. (default)
	808	+A9 aa -à Same as AT+MBFUN=aa
1269	1269
1270		- (% style="color:#4472c4" %)** AT+DISMACANS=1**   (%%) ~/~/  When the MACANS of the reply server plus the payload exceeds the maximum number of bytes of the DR, the node will ignore the MACANS and not reply, and only upload the payload part.
1271	1271
	811	+==== RS485 command timeout ====
1272	1272
1273		-* (((
1274		-(% style="color:#037691" %)** Downlink Payload:**
1275		-)))
	813	+Some Modbus device has slow action to send replies. This command is used to configure the RS485-BL to use longer time to wait for their action.
1276	1276
1277		-(% style="color:#4472c4" %)** 0x21 00 01 ** (%%) ~/~/ Set  the DISMACANS=1
	815	+Default value: 0, range:  0 ~~ 5 seconds
1278	1278
1279	1279
	818	+* AT Command:
1280	1280
	820	+AT+CMDDLaa=hex(bb cc)
1281	1281
1282		-==== (% style="color:blue" %)** Copy downlink to uplink **(%%) ====
	822	+Example:
1283	1283
	824	+**AT+CMDDL1=1000** to send the open time to 1000ms
1284	1284
1285		-* (((
1286		-(% style="color:#037691" %)** AT Command:**
1287		-)))
1288	1288
1289		-(% style="color:#4472c4" %)** AT+RPL=5**  (%%) ~/~/ After receiving the package from the server, it will immediately upload the content of the package to the server, the port number is 100.
	827	+* Downlink Payload:
1290	1290
1291		-Example：**aa xx xx xx xx**         ~/~/ aa indicates whether the configuration has changed, 00 is yes, 01 is no; xx xx xx xx are the bytes sent.
	829	+0x AA aa bb cc
1292	1292
	831	+Same as: AT+CMDDLaa=hex(bb cc)
1293	1293
1294		-[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSN50%20%26%20LSN50-V2%20-%20LoRaWAN%20Sensor%20Node%20User%20Manual/WebHome/image-20220823173747-6.png?width=1124&height=165&rev=1.1||alt="image-20220823173747-6.png"]]
	833	+ Example:
1295	1295
1296		-For example, sending 11 22 33 44 55 66 77 will return invalid configuration 00 11 22 33 44 55 66 77.
	835	+ 0xAA 01 03 E8  à Same as **AT+CMDDL1=1000 ms**
1297	1297
1298	1298
	838	+==== [[Uplink>>path:#downlink_A8]] payload mode ====
1299	1299
1300		-[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSN50%20%26%20LSN50-V2%20-%20LoRaWAN%20Sensor%20Node%20User%20Manual/WebHome/image-20220823173833-7.png?width=1124&height=149&rev=1.1||alt="image-20220823173833-7.png"]]
	840	+Define to use one uplink or multiple uplinks for the sampling.
1301	1301
1302		-For example, if 01 00 02 58 is issued, a valid configuration of 01 01 00 02 58 will be returned.
	842	+The use of this command please see: [[Compose Uplink payload>>path:#DataUP]]
1303	1303
	844	+* AT Command:
1304	1304
	846	+AT+DATAUP=0
1305	1305
	848	+AT+DATAUP=1
1306	1306
1307		-==== (% style="color:blue" %)**Query version number and frequency band 、TDC**(%%) ====
1308	1308
	851	+* Downlink Payload:
1309	1309
1310		-(((
1311		-* (% style="color:#037691" %)**Downlink Payload:**
	853	+0xAD 00   à Same as AT+DATAUP=0
1312	1312
1313		-(% style="color:#4472c4" %)** 26 01  ** (%%) ~/~/  Downlink 26 01 can query device upload frequency, frequency band, software version number, TDC time.
1314		-)))
	855	+0xAD 01   à Same as AT+DATAUP=1
1315	1315
1316	1316
1317		-Example：
	858	+==== Manually trigger an Uplink ====
1318	1318
	860	+Ask device to send an uplink immediately.
1319	1319
1320		-[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSN50%20%26%20LSN50-V2%20-%20LoRaWAN%20Sensor%20Node%20User%20Manual/WebHome/image-20220823173929-8.png?width=1205&height=76&rev=1.1||alt="image-20220823173929-8.png"]]
	862	+* Downlink Payload:
1321	1321
	864	+0x08 FF, RS485-BL will immediately send an uplink.
1322	1322
1323	1323
	867	+==== Clear RS485 Command ====
1324	1324
1325		-==== (% style="color:blue" %)** Monitor RS485 communication of other devices**(%%) ====
	869	+The AT+COMMANDx and AT+DATACUTx settings are stored in special location, user can use below command to clear them.
1326	1326
1327	1327
1328		-* (((
1329		-(% style="color:#037691" %)** AT Command:**
1330		-)))
	872	+* AT Command:
1331	1331
1332		-(% style="color:#4472c4" %)**AT+RXMODE=1,10**    (%%) ~/~/ When the RS485-LN receives more than 10 bytes from the RS485, it immediately sends the uplink of the received data.
	874	+**AT+CMDEAR=mm,nn**   mm: start position of erase ,nn: stop position of erase
1333	1333
1334		-(% style="color:#4472c4" %)**AT+RXMODE=2,500    ** (%%) ~/~/  RS485-LN uploads data as uplink from the first byte received by RS485 to the data received within 500ms after that.
	876	+Etc. AT+CMDEAR=1,10 means erase AT+COMMAND1/AT+DATACUT1 to AT+COMMAND10/AT+DATACUT10
1335	1335
1336		-(% style="color:#4472c4" %)**AT+RXMODE=0,0  ** (%%) ~/~/  Disable this mode (default)
	878	+Example screen shot after clear all RS485 commands.
1337	1337
1338	1338
1339		-* (((
1340		-(% style="color:#037691" %)**Downlink Payload:**
1341		-)))
1342	1342
1343		-(% style="color:#4472c4" %)** A6 aa bb bb               ** (%%) ~/~/ same as AT+RXMODE=aa,bb
	882	+The uplink screen shot is:
1344	1344
1345		-[[image:image-20220824144240-1.png]]
	884	+[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image023.png]]
1346	1346
1347	1347
	887	+* Downlink Payload:
1348	1348
1349		-== 3.6 Listening mode for RS485 network ==
	889	+0x09 aa bb same as AT+CMDEAR=aa,bb
1350	1350
1351	1351
1352		-(((
1353		-This feature support since firmware v1.4
1354		-)))
	892	+==== Set Serial Communication Parameters ====
1355	1355
1356		-(((
1357		-RS485-LN supports listening mode, it can listen the RS485 network packets and send them via LoRaWAN uplink. Below is the structure. The blue arrow shows the RS485 network packets to RS485-LN.
	894	+Set the Rs485 serial communication parameters:
1358	1358
1359		-
1360		-)))
	896	+* AT Command:
1361	1361
1362		-(% aria-label="image-20220602171200-8.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220602171200-8.png||data-widget="image" height="567" width="1007"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]]
	898	+Set Baud Rate:
1363	1363
1364		-(% title="Click and drag to resize" %)​
	900	+AT+BAUDR=9600    ~/~/ Options: (1200,2400,4800,14400,19200,115200)
1365	1365
1366		-(((
1367		-To enable the listening mode, use can run the command (% style="color:#4472c4" %)** AT+RXMODE**.
1368		-)))
1369	1369
1370		-(((
1371		-
1372		-)))
	903	+Set UART parity
1373	1373
1374		-(% border="1" cellspacing="10" style="background-color:#ffffcc; width:500px" %)
1375		-|=(% style="width: 100px;" %)(((
1376		-**Command example**
1377		-)))|=(% style="width: 400px;" %)(((
1378		-**Function**
1379		-)))
1380		-|(% style="width:100px" %)(((
1381		-AT+RXMODE=1,10
1382		-)))|(% style="width:400px" %)(((
1383		-Enable listening mode 1, if RS485-LN has received more than 10 RS485 commands from the network. RS485-LN will send these commands via LoRaWAN uplinks.
1384		-)))
1385		-|(% style="width:100px" %)(((
1386		-AT+RXMODE=2,500
1387		-)))|(% style="width:400px" %)(((
1388		-Enable listening mode 2, RS485-LN will capture and send a 500ms content once from the first detect of character. Max value is 65535 ms
1389		-)))
1390		-|(% style="width:100px" %)(((
1391		-AT+RXMODE=0,0
1392		-)))|(% style="width:400px" %)(((
1393		-Disable listening mode. This is the default settings.
1394		-)))
1395		-|(% style="width:100px" %)(((
1396		-
1397		-)))|(% style="width:400px" %)(((
1398		-A6 aa bb cc  same as AT+RXMODE=aa,(bb<<8 | cc)
1399		-)))
	905	+AT+PARITY=0    ~/~/ Option: 0: no parity, 1: odd parity, 2: even parity
1400	1400
1401		-(((
1402		-
1403	1403
1404		-(% style="color:#037691" %)**Downlink Command:**
1405		-)))
	908	+Set STOPBIT
1406	1406
1407		-(((
1408		-(% style="color:#4472c4" %)** 0xA6 aa bb cc **(%%) same as AT+RXMODE=aa,(bb<<8 | cc)
1409		-)))
	910	+AT+STOPBIT=0    ~/~/ Option: 0 for 1bit; 1 for 1.5 bit ; 2 for 2 bits
1410	1410
1411		-(((
1412		-
1413		-)))
1414	1414
1415		-(((
1416		-**Example**:
1417		-)))
	913	+* Downlink Payload:
1418	1418
1419		-(((
1420		-The RS485-LN is set to AT+RXMODE=2,1000
1421		-)))
	915	+A7 01 aa bb: Same  AT+BAUDR=hex(aa bb)*100
1422	1422
1423		-(((
1424		-There is a two Modbus commands in the RS485 network as below:
1425		-)))
	917	+Example:
1426	1426
1427		-(((
1428		-The Modbus master send a command: (% style="background-color:#ffc000" %)01 03 00 00 00 02 c4 0b
1429		-)))
	919	+* A7 01 00 60   same as AT+BAUDR=9600
	920	+* A7 01 04 80  same as AT+BAUDR=115200
1430	1430
1431		-(((
1432		-And Modbus slave reply with: (% style="background-color:green" %)01 03 04 00 00 00 00 fa 33
1433		-)))
	922	+A7 02 aa: Same as  AT+PARITY=aa  (aa value: 00 , 01 or 02)
1434	1434
1435		-(((
1436		-RS485-LN will capture both and send the uplink: (% style="background-color:#ffc000" %)01 03 00 00 00 02 c4 0b  (% style="background-color:green" %)01 03 04 00 00 00 00 fa 33
	924	+A7 03 aa: Same as  AT+STOPBIT=aa  (aa value: 00 , 01 or 02)
1437	1437
1438		-
1439		-)))
1440	1440
1441		-(((
1442		-(% aria-label="image-20220602171200-9.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220602171200-9.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
1443		-)))
	927	+==== Control output power duration ====
1444	1444
1445		-(((
1446		-
1447		-)))
	929	+User can set the output power duration before each sampling.
1448	1448
1449		-(((
1450		-(((
1451		-(% style="color:red" %)**Notice: Listening mode can work with the default polling mode of RS485-LN. When RS485-LN is in to send the RS485 commands (from AT+COMMANDx), the listening mode will be interrupt for a while.**
1452		-)))
1453		-)))
	931	+* AT Command:
1454	1454
	933	+Example:
1455	1455
	935	+AT+3V3T=1000 ~/~/ 3V3 output power will open 1s before each sampling.
1456	1456
1457		-== 3.7 Buttons ==
	937	+AT+5VT=1000 ~/~/ +5V output power will open 1s before each sampling.
1458	1458
1459	1459
1460		-(% border="1.5" cellspacing="4" style="background-color:#ffffcc; width:430px" %)
1461		-|=(% style="width: 50px;" %)**Button**|=(% style="width: 380px;" %)**Feature**
1462		-|(% style="width:50px" %)**ACT**|(% style="width:361px" %)If RS485 joined in network, press this button for more than 1 second, RS485 will upload a packet, and the SYS LED will give a (% style="color:blue" %)**Blue blink**
1463		-|(% style="width:50px" %)**RST**|(% style="width:361px" %)Reboot RS485
1464		-|(% style="width:50px" %)**PRO**|(% style="width:361px" %)Use for upload image, see [[How to Update Image>>||anchor="H6.1Howtoupgradetheimage3F"]]
	940	+* LoRaWAN Downlink Command:
1465	1465
	942	+07 01 aa bb  Same as AT+5VT=(aa bb)
1466	1466
1467		-== 3.8 LEDs ==
	944	+07 02 aa bb  Same as AT+3V3T=(aa bb)
1468	1468
1469	1469
1470		-(% border="1.5" cellspacing="4" style="background-color:#ffffcc; width:430px" %)
1471		-|=(% style="width: 50px;" %)**LEDs**|=(% style="width: 380px;" %)**Feature**
1472		-|**PWR**|Always on if there is power
1473		-|**SYS**|After device is powered on, the SYS will (% style="color:green" %)**fast blink in GREEN**(%%) for 5 times, means RS485-LN start to join LoRaWAN network. If join success, SYS will be (% style="color:green" %)**on GREEN for 5 seconds** (%%)**. **SYS will (% style="color:green" %)**blink Blue**(%%) on every upload and (% style="color:green" %)**blink Green**(%%) once receive a downlink message.
1474	1474
1475	1475
1476		-= 4. Case Study =
	949	+1.
	950	+11. Buttons
1477	1477
	952	+|**Button**|**Feature**
	953	+|**RST**|Reboot RS485-BL
1478	1478
1479		-User can check this URL for some case studies: [[APP RS485 COMMUNICATE WITH SENSORS>>doc:Main.Application Note \: Communicate with Different Sensors ----- RS485-LN RS485-BL.WebHome]]
	955	+1.
	956	+11. +3V3 Output
1480	1480
	958	+RS485-BL has a Controllable +3V3 output, user can use this output to power external sensor.
1481	1481
	960	+The +3V3 output will be valid for every sampling. RS485-BL will enable +3V3 output before all sampling and disable the +3V3 after all sampling.
1482	1482
1483		-= 5. Use AT Command =
1484	1484
	963	+The +3V3 output time can be controlled by AT Command.
1485	1485
1486		-== 5.1 Access AT Command ==
	965	+**AT+3V3T=1000**
1487	1487
	967	+Means set +3v3 valid time to have 1000ms. So, the real +3v3 output will actually have 1000ms + sampling time for other sensors.
1488	1488
1489		-(((
1490		-RS485-LN supports AT Command set. User can use a USB to TTL adapter plus the 3.5mm Program Cable to connect to RS485-LN to use AT command, as below.
1491	1491
1492		-
1493		-)))
	970	+By default, the AT+3V3T=0. This is a special case, means the +3V3 output is always on at any time
1494	1494
1495		-(% aria-label="1654162355560-817.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1654162355560-817.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
1496	1496
	973	+1.
	974	+11. +5V Output
1497	1497
	976	+RS485-BL has a Controllable +5V output, user can use this output to power external sensor.
1498	1498
1499		-(((
1500		-In PC, User needs to set (% style="color:blue" %)**serial tool**(%%)(such as [[putty>>url:https://www.chiark.greenend.org.uk/~~sgtatham/putty/latest.html]], SecureCRT) baud rate to (% style="color:green" %)**9600**(%%) to access to access serial console of RS485-LN. The default password is 123456. Below is the output for reference:
	978	+The +5V output will be valid for every sampling. RS485-BL will enable +5V output before all sampling and disable the +5v after all sampling.
1501	1501
1502		-
1503		-)))
1504	1504
1505		-(% aria-label="1654162368066-342.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1654162368066-342.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
	981	+The 5V output time can be controlled by AT Command.
1506	1506
	983	+**AT+5VT=1000**
1507	1507
1508		-(((
1509		-More detail AT Command manual can be found at [[AT Command Manual>>https://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/]]
1510		-)))
	985	+Means set 5V valid time to have 1000ms. So, the real 5V output will actually have 1000ms + sampling time for other sensors.
1511	1511
1512	1512
	988	+By default, the AT+5VT=0. If the external sensor which require 5v and require more time to get stable state, user can use this command to increase the power ON duration for this sensor.
1513	1513
1514		-== 5.2 Common AT Command Sequence ==
1515	1515
1516	1516
1517		-=== 5.2.1 Multi-channel ABP mode (Use with SX1301/LG308) ===
1518	1518
	993	+1.
	994	+11. LEDs
1519	1519
1520		-If device has not joined network yet:
	996	+|**LEDs**|**Feature**
	997	+|**LED1**|Blink when device transmit a packet.
1521	1521
1522		-* (% style="color:#037691" %)**AT+FDR**
1523		-* (% style="color:#037691" %)**AT+NJM=0**
1524		-* (% style="color:#037691" %)**ATZ**
	999	+1.
	1000	+11. Switch Jumper
1525	1525
1526		-(((
1527		-
	1002	+|**Switch Jumper**|**Feature**
	1003	+|**SW1**|(((
	1004	+ISP position: Upgrade firmware via UART
1528	1528
1529		-If device already joined network:
	1006	+Flash position: Configure device, check running status.
	1007	+)))
	1008	+|**SW2**|(((
	1009	+5V position: set to compatible with 5v I/O.
1530	1530
1531		-* (% style="color:#037691" %)**AT+NJM=0**
1532		-* (% style="color:#037691" %)**ATZ**
1533		-
1534		-
	1011	+3.3v position: set to compatible with 3.3v I/O.,
1535	1535	)))
1536	1536
	1014	++3.3V: is always ON
1537	1537
	1016	++5V: Only open before every sampling. The time is by default, it is AT+5VT=0.  Max open time. 5000 ms.
1538	1538
1539		-=== 5.5.2 Single-channel ABP mode (Use with LG01/LG02) ===
	1018	+1. Case Study
1540	1540
	1020	+User can check this URL for some case studies.
1541	1541
1542		-(% style="background-color:#dcdcdc" %)**AT+FDR** (%%) Reset Parameters to Factory Default, Keys Reserve
	1022	+[[http:~~/~~/wiki.dragino.com/index.php?title=APP_RS485_COMMUNICATE_WITH_SENSORS>>url:http://wiki.dragino.com/index.php?title=APP_RS485_COMMUNICATE_WITH_SENSORS]]
1543	1543
1544		-(% style="background-color:#dcdcdc" %)**AT+NJM=0 **(%%) Set to ABP mode
1545	1545
1546		-(% style="background-color:#dcdcdc" %)**AT+ADR=0** (%%) Set the Adaptive Data Rate Off
1547	1547
1548		-(% style="background-color:#dcdcdc" %)**AT+DR=5**   (%%) Set Data Rate
1549	1549
1550		-(% style="background-color:#dcdcdc" %)**AT+TDC=60000** (%%) Set transmit interval to 60 seconds
	1027	+1. Use AT Command
	1028	+11. Access AT Command
1551	1551
1552		-(% style="background-color:#dcdcdc" %)**AT+CHS=868400000**(%%)  Set transmit frequency to 868.4Mhz
	1030	+RS485-BL supports AT Command set. User can use a USB to TTL adapter plus the 3.5mm Program Cable to connect to RS485-BL to use AT command, as below.
1553	1553
1554		-(% style="background-color:#dcdcdc" %)**AT+RX2FQ=868400000** (%%) Set RX2Frequency to 868.4Mhz (according to the result from server)
	1032	+[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image027.png]]
1555	1555
1556		-(% style="background-color:#dcdcdc" %)**AT+RX2DR=5**  (%%) Set RX2DR to match the downlink DR from server. see below
1557	1557
1558		-(% style="background-color:#dcdcdc" %)**AT+DADDR=26** (%%) 01 1A F1 Set Device Address to 26 01 1A F1, this ID can be found in the LoRa Server portal.
	1035	+In PC, User needs to set **serial tool**(such as [[putty>>url:https://www.chiark.greenend.org.uk/~~sgtatham/putty/latest.html]], SecureCRT) baud rate to **9600** to access to access serial console of RS485-BL. The default password is 123456. Below is the output for reference:
1559	1559
1560		-(% style="background-color:#dcdcdc" %)**ATZ**       (%%) Reset MCU
	1037	+[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image028.png]]
1561	1561
1562	1562
1563		-(% style="color:red" %)**Note:**
1564	1564
1565		-(((
1566		-(% style="color:red" %)1. Make sure the device is set to ABP mode in the IoT Server.
1567		-2. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.
1568		-3. Make sure SF / bandwidth setting in LG01/LG02 match the settings of AT+DR. refer [[this link>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_Gateway/&file=LoRaWAN%201.0.3%20Regional%20Parameters.xlsx]] to see what DR means.
1569		-4. The command AT+RX2FQ and AT+RX2DR is to let downlink work. to set the correct parameters, user can check the actually downlink parameters to be used. As below. Which shows the RX2FQ should use 868400000 and RX2DR should be 5
	1041	+More detail AT Command manual can be found at [[AT Command Manual>>path:#AT_COMMAND]]
1570	1570
1571		-
1572		-)))
1573	1573
1574		-(% aria-label="1654162478620-421.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1654162478620-421.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
1575	1575
	1045	+1.
	1046	+11. Common AT Command Sequence
	1047	+111. Multi-channel ABP mode (Use with SX1301/LG308)
1576	1576
	1049	+If device has not joined network yet:
1577	1577
1578		-= 6. FAQ =
	1051	+AT+FDR
1579	1579
	1053	+AT+NJM=0
1580	1580
1581		-== 6.1 How to upgrade the image? ==
	1055	+ATZ
1582	1582
1583	1583
1584		-(((
1585		-The RS485-LN LoRaWAN Controller is shipped with a 3.5mm cable, the cable is used to upload image to RS485-LN to:
1586		-)))
	1058	+If device already joined network:
1587	1587
1588		-* (((
1589		-Support new features
1590		-)))
1591		-* (((
1592		-For bug fix
1593		-)))
1594		-* (((
1595		-Change LoRaWAN bands.
1596		-)))
	1060	+AT+NJM=0
1597	1597
1598		-(((
1599		-Below shows the hardware connection for how to upload an image to RS485-LN:
1600		-)))
	1062	+ATZ
1601	1601
1602		-(% aria-label="1654162535040-878.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1654162535040-878.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]]
	1064	+1.
	1065	+11.
	1066	+111. Single-channel ABP mode (Use with LG01/LG02)
1603	1603
1604		-(% title="Click and drag to resize" %)​
	1068	+AT+FDR   Reset Parameters to Factory Default, Keys Reserve
1605	1605
1606		-(((
1607		-(% style="color:blue" %)**Step1**(%%)**:** Download [[flash loader>>url:https://www.st.com/content/st_com/en/products/development-tools/software-development-tools/stm32-software-development-tools/stm32-programmers/flasher-stm32.html]].
	1070	+AT+NJM=0 Set to ABP mode
1608	1608
1609		-
1610		-)))
	1072	+AT+ADR=0 Set the Adaptive Data Rate Off
1611	1611
1612		-(((
1613		-(% style="color:blue" %)**Step2**(%%)**:** Download the [[LT Image files>>url:https://www.dropbox.com/sh/g99v0fxcltn9r1y/AACP33wo_ZQLsxW2MJ70oUoba/RS485-LN/Firmware?dl=0&subfolder_nav_tracking=1]].
	1074	+AT+DR=5  Set Data Rate
1614	1614
1615		-
1616		-)))
	1076	+AT+TDC=60000  Set transmit interval to 60 seconds
1617	1617
1618		-(((
1619		-(% style="color:blue" %)**Step3**(%%)**: **Open flashloader; choose the correct COM port to update.
	1078	+AT+CHS=868400000 Set transmit frequency to 868.4Mhz
1620	1620
1621		-
1622		-)))
	1080	+AT+RX2FQ=868400000 Set RX2Frequency to 868.4Mhz (according to the result from server)
1623	1623
1624		-(((
1625		-(((
1626		-(((
1627		-(% style="color:blue" %) Hold down the PRO button and then momentarily press the RST reset button and the SYS led will change from OFF to ON, While SYS LED is RED ON, it means the RS485-LN is ready to be program.
1628		-)))
1629		-)))
1630		-)))
	1082	+AT+RX2DR=5  Set RX2DR to match the downlink DR from server. see below
1631	1631
	1084	+AT+DADDR=26 01 1A F1 Set Device Address to 26 01 1A F1, this ID can be found in the LoRa Server portal.
1632	1632
1633		-(% aria-label="image-20220602175818-12.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220602175818-12.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
	1086	+ATZ          Reset MCU
1634	1634
	1088	+**Note:**
1635	1635
1636		-(% aria-label="image-20220602175848-13.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220602175848-13.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
	1090	+1. Make sure the device is set to ABP mode in the IoT Server.
	1091	+1. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.
	1092	+1. Make sure SF / bandwidth setting in LG01/LG02 match the settings of AT+DR. refer [[this link>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_Gateway/&file=LoRaWAN%201.0.3%20Regional%20Parameters.xlsx]] to see what DR means.
	1093	+1. The command AT+RX2FQ and AT+RX2DR is to let downlink work. to set the correct parameters, user can check the actually downlink parameters to be used. As below. Which shows the RX2FQ should use 868400000 and RX2DR should be 5
1637	1637
	1095	+[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image029.png]]
1638	1638
1639		-(% aria-label="image-20220602175912-14.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220602175912-14.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
1640	1640
	1098	+1. FAQ
	1099	+11. How to upgrade the image?
1641	1641
1642		-(% style="color:red" %)**Notice**: **In case user has lost the program cable. User can hand made one from a 3.5mm cable. The pin mapping is:**
	1101	+The RS485-BL LoRaWAN Controller is shipped with a 3.5mm cable, the cable is used to upload image to RS485-BL to:
1643	1643
1644		-(% aria-label="image-20220602175638-10.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220602175638-10.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
	1103	+* Support new features
	1104	+* For bug fix
	1105	+* Change LoRaWAN bands.
1645	1645
	1107	+Below shows the hardware connection for how to upload an image to RS485-BL:
1646	1646
	1109	+[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image030.png]]
1647	1647
1648		-== 6.2 How to change the LoRa Frequency Bands/Region? ==
	1111	+**Step1:** Download [[flash loader>>url:https://www.st.com/content/st_com/en/products/development-tools/software-development-tools/stm32-software-development-tools/stm32-programmers/flasher-stm32.html]].
1649	1649
	1113	+**Step2**: Download the [[LT Image files>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]].
1650	1650
1651		-User can follow the introduction for [[how to upgrade image>>||anchor="H6.1Howtoupgradetheimage3F"]]. When download the images, choose the required image file for download.
	1115	+**Step3: **Open flashloader; choose the correct COM port to update.
1652	1652
1653	1653
	1118	+|(((
	1119	+HOLD PRO then press the RST button, SYS will be ON, then click next
	1120	+)))
1654	1654
1655		-== 6.3 How many RS485-Slave can RS485-LN connects? ==
	1122	+|(((
	1123	+Board detected
	1124	+)))
1656	1656
	1126	+|(((
	1127	+
	1128	+)))
1657	1657
1658		-The RS485-LN can support max 32 RS485 devices. Each uplink command of RS485-LN can support max 16 different RS485 command. So RS485-LN can support max 16 RS485 devices pre-program in the device for uplink. For other devices no pre-program, user can use the [[downlink message (type code 0xA8) to poll their info>>||anchor="H3.3.3Configurereadcommandsforeachsampling"]].
	1130	+[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image031.png]] [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image032.png]]
1659	1659
1660	1660
1661	1661
1662		-== 6.4 Compatible question to ChirpStack and TTI LoRaWAN server ? ==
	1134	+[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image033.png]] [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image034.png]]
1663	1663
1664	1664
1665		-When user need to use with ChirpStack or TTI. Please set AT+RPL=4.
	1137	+[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image035.png]] [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image036.png]]
1666	1666
1667		-Detail info check this link: [[Set Packet Receiving Response Level>>doc:Main.End Device AT Commands and Downlink Command.WebHome||anchor="H7.23SetPacketReceivingResponseLevel"]]
1668	1668
	1140	+1.
	1141	+11. How to change the LoRa Frequency Bands/Region?
1669	1669
	1143	+User can follow the introduction for [[how to upgrade image>>path:#upgrade_image]]. When download the images, choose the required image file for download.
1670	1670
1671		-== 6.5 Can i use point to point communication for RS485-LN? ==
1672	1672
1673	1673
1674		-Yes, please updating point-to-point [[firmware>>https://www.dropbox.com/sh/g99v0fxcltn9r1y/AACP33wo_ZQLsxW2MJ70oUoba/RS485-LN/Firmware?dl=0&subfolder_nav_tracking=1]]，then refer [[Point to Point Communication for RS485-LN>>Point to Point Communication for RS485-LN]].
	1147	+1.
	1148	+11. How many RS485-Slave can RS485-BL connects?
1675	1675
	1150	+The RS485-BL can support max 32 RS485 devices. Each uplink command of RS485-BL can support max 16 different RS485 command. So RS485-BL can support max 16 RS485 devices pre-program in the device for uplink. For other devices no pre-program, user can use the [[downlink message (type code 0xA8) to poll their info>>path:#downlink_A8]].
1676	1676
1677	1677
1678		-== 6.6 How to Use RS485-LN  to connect to RS232 devices? ==
1679	1679
1680	1680
1681		-[[Use RS485-BL or RS485-LN to connect to RS232 devices. - DRAGINO>>url:http://8.211.40.43:8080/xwiki/bin/view/Main/RS485%20to%20RS232/]]
	1155	+1. Trouble Shooting
	1156	+11. Downlink doesn’t work, how to solve it?
1682	1682
	1158	+Please see this link for debug:
1683	1683
	1160	+[[http:~~/~~/wiki.dragino.com/index.php?title=Main_Page#LoRaWAN_Communication_Debug>>url:http://wiki.dragino.com/index.php?title=Main_Page#LoRaWAN_Communication_Debug]]
1684	1684
1685		-= 7. Trouble Shooting =
1686	1686
1687	1687
1688		-== 7.1 Downlink doesn't work, how to solve it? ==
	1164	+1.
	1165	+11. Why I can’t join TTN V3 in US915 /AU915 bands?
1689	1689
	1167	+It might about the channels mapping. Please see for detail.
1690	1690
1691		-Please see this link for debug: [[LoRaWAN Communication Debug>>doc:Main.LoRaWAN Communication Debug.WebHome]]
	1169	+[[http:~~/~~/wiki.dragino.com/index.php?title=LoRaWAN_Communication_Debug#Notice_of_US915.2FCN470.2FAU915_Frequency_band>>url:http://wiki.dragino.com/index.php?title=LoRaWAN_Communication_Debug#Notice_of_US915.2FCN470.2FAU915_Frequency_band]]
1692	1692
1693	1693
1694	1694
1695		-== 7.2 Why I can't join TTN V3 in US915 /AU915 bands? ==
	1173	+1. Order Info
1696	1696
	1175	+**Part Number: RS485-BL-XXX**
1697	1697
1698		-It might about the channels mapping. Please see for detail: [[Notice of Frequency band>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]]
	1177	+**XXX:**
1699	1699
	1179	+* **EU433**: frequency bands EU433
	1180	+* **EU868**: frequency bands EU868
	1181	+* **KR920**: frequency bands KR920
	1182	+* **CN470**: frequency bands CN470
	1183	+* **AS923**: frequency bands AS923
	1184	+* **AU915**: frequency bands AU915
	1185	+* **US915**: frequency bands US915
	1186	+* **IN865**: frequency bands IN865
	1187	+* **RU864**: frequency bands RU864
	1188	+* **KZ865: **frequency bands KZ865
1700	1700
	1190	+1. Packing Info
1701	1701
1702		-= 8. Order Info =
1703		-
1704		-
1705		-(% style="color:blue" %)**Part Number: RS485-LN-XXX**
1706		-
1707		-(% style="color:blue" %)**XXX:**
1708		-
1709		-* (% style="color:red" %)**EU433**(%%):  frequency bands EU433
1710		-* (% style="color:red" %)**EU868**(%%):  frequency bands EU868
1711		-* (% style="color:red" %)**KR920**(%%):  frequency bands KR920
1712		-* (% style="color:red" %)**CN470**(%%):  frequency bands CN470
1713		-* (% style="color:red" %)**AS923**(%%):  frequency bands AS923
1714		-* (% style="color:red" %)**AU915**(%%):  frequency bands AU915
1715		-* (% style="color:red" %)**US915**(%%):  frequency bands US915
1716		-* (% style="color:red" %)**IN865**(%%):  frequency bands IN865
1717		-* (% style="color:red" %)**RU864**(%%):  frequency bands RU864
1718		-* (% style="color:red" %)**KZ865**(%%):  frequency bands KZ865
1719		-
1720		-
1721		-= 9.Packing Info =
1722		-
1723		-
1724	1724	**Package Includes**:
1725	1725
1726		-* RS485-LN x 1
	1194	+* RS485-BL x 1
1727	1727	* Stick Antenna for LoRa RF part x 1
1728	1728	* Program cable x 1
1729	1729
...	...	@@ -1734,69 +1734,9 @@
1734	1734	* Package Size / pcs : 14.5 x 8 x 5 cm
1735	1735	* Weight / pcs : 170g
1736	1736
	1205	+1. Support
1737	1737
1738		-= 10. FCC Caution for RS485LN-US915 =
	1207	+* Support is provided Monday to Friday, from 09:00 to 18:00 GMT+8. Due to different timezones we cannot offer live support. However, your questions will be answered as soon as possible in the before-mentioned schedule.
	1208	+* Provide as much information as possible regarding your enquiry (product models, accurately describe your problem and steps to replicate it etc) and send a mail to
1739	1739
1740		-
1741		-(((
1742		-Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.
1743		-)))
1744		-
1745		-(((
1746		-This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.
1747		-)))
1748		-
1749		-(((
1750		-
1751		-)))
1752		-
1753		-(((
1754		-(% style="color:red" %)**IMPORTANT NOTE:**
1755		-)))
1756		-
1757		-(((
1758		-(% style="color:red" %)**Note: **(%%)This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:
1759		-)))
1760		-
1761		-(((
1762		-—Reorient or relocate the receiving antenna.
1763		-)))
1764		-
1765		-(((
1766		-—Increase the separation between the equipment and receiver.
1767		-)))
1768		-
1769		-(((
1770		-—Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
1771		-)))
1772		-
1773		-(((
1774		-—Consult the dealer or an experienced radio/TV technician for help.
1775		-)))
1776		-
1777		-(((
1778		-
1779		-)))
1780		-
1781		-(((
1782		-(% style="color:red" %)**FCC Radiation Exposure Statement:**
1783		-)))
1784		-
1785		-(((
1786		-This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment.This equipment should be installed and operated with minimum distance 20cm between the radiator& your body.
1787		-)))
1788		-
1789		-
1790		-
1791		-= 11. Support =
1792		-
1793		-
1794		-* (((
1795		-Support is provided Monday to Friday, from 09:00 to 18:00 GMT+8. Due to different timezones we cannot offer live support. However, your questions will be answered as soon as possible in the before-mentioned schedule.
1796		-)))
1797		-* (((
1798		-Provide as much information as possible regarding your enquiry (product models, accurately describe your problem and steps to replicate it etc) and send a mail to [[support@dragino.com>>url:file:///D:/市场资料/说明书/LoRa/LT系列/support@dragino.com]].
1799		-
1800		-
1801		-
1802		-)))
	1210	+[[support@dragino.com>>url:file:///D:/市场资料/说明书/LoRa/LT系列/support@dragino.com]]

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