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1		-XWiki.ting
	1	+XWiki.Edwin

Content

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59	59
60	60	== 1.2 Specifications ==
61	61
62		-(((
63		-
64		-
65	65	(% style="color:#037691" %)**Hardware System:**
66		-)))
67	67
68		-* (((
69		-STM32L072xxxx MCU
70		-)))
71		-* (((
72		-SX1276/78 Wireless Chip
73		-)))
74		-* (((
75		-(((
76		-Power Consumption:
77		-)))
	64	+* STM32L072xxxx MCU
	65	+* SX1276/78 Wireless Chip
	66	+* Power Consumption:
	67	+** Idle: 4mA@12v
	68	+** 20dB Transmit: 34mA@12v
	69	+* Operating Temperature: -40 ~~ 85 Degree, No Dew
78	78
79		-* (((
80		-Idle: 4mA@12v
81		-)))
82		-* (((
83		-20dB Transmit: 34mA@12v
84		-)))
85		-)))
86	86
87		-(((
88		-
89		-
90	90	(% style="color:#037691" %)**Interface for Model: LT22222-L:**
91		-)))
92	92
93		-* (((
94		-2 x Digital dual direction Input (Detect High/Low signal, Max: 50v, or 220v with optional external resistor)
95		-)))
96		-* (((
97		-2 x Digital Output (NPN output. Max pull up voltage 36V,450mA)
98		-)))
99		-* (((
100		-2 x Relay Output (5A@250VAC / 30VDC)
101		-)))
102		-* (((
103		-2 x 0~~20mA Analog Input (res:0.01mA)
104		-)))
105		-* (((
106		-2 x 0~~30V Analog Input (res:0.01v)
107		-)))
108		-* (((
109		-Power Input 7~~ 24V DC.
110		-)))
	74	+* 2 x Digital dual direction Input (Detect High/Low signal, Max: 50v, or 220v with optional external resistor)
	75	+* 2 x Digital Output (NPN output. Max pull up voltage 36V,450mA)
	76	+* 2 x Relay Output (5A@250VAC / 30VDC)
	77	+* 2 x 0~~20mA Analog Input (res:0.01mA)
	78	+* 2 x 0~~30V Analog Input (res:0.01v)
	79	+* Power Input 7~~ 24V DC.
111	111
112		-(((
113		-
114	114
115	115	(% style="color:#037691" %)**LoRa Spec:**
116		-)))
117	117
118		-* (((
119		-(((
120		-Frequency Range:
121		-)))
	84	+* Frequency Range:
	85	+** Band 1 (HF): 862 ~~ 1020 Mhz
	86	+** Band 2 (LF): 410 ~~ 528 Mhz
	87	+* 168 dB maximum link budget.
	88	+* +20 dBm - 100 mW constant RF output vs.
	89	+* +14 dBm high efficiency PA.
	90	+* Programmable bit rate up to 300 kbps.
	91	+* High sensitivity: down to -148 dBm.
	92	+* Bullet-proof front end: IIP3 = -12.5 dBm.
	93	+* Excellent blocking immunity.
	94	+* Low RX current of 10.3 mA, 200 nA register retention.
	95	+* Fully integrated synthesizer with a resolution of 61 Hz.
	96	+* FSK, GFSK, MSK, GMSK, LoRaTM and OOK modulation.
	97	+* Built-in bit synchronizer for clock recovery.
	98	+* Preamble detection.
	99	+* 127 dB Dynamic Range RSSI.
	100	+* Automatic RF Sense and CAD with ultra-fast AFC.
	101	+* Packet engine up to 256 bytes with CRC.
122	122
123		-* (((
124		-Band 1 (HF): 862 ~~ 1020 Mhz
125		-)))
126		-* (((
127		-Band 2 (LF): 410 ~~ 528 Mhz
128		-)))
129		-)))
130		-* (((
131		-168 dB maximum link budget.
132		-)))
133		-* (((
134		-+20 dBm - 100 mW constant RF output vs.
135		-)))
136		-* (((
137		-+14 dBm high efficiency PA.
138		-)))
139		-* (((
140		-Programmable bit rate up to 300 kbps.
141		-)))
142		-* (((
143		-High sensitivity: down to -148 dBm.
144		-)))
145		-* (((
146		-Bullet-proof front end: IIP3 = -12.5 dBm.
147		-)))
148		-* (((
149		-Excellent blocking immunity.
150		-)))
151		-* (((
152		-Low RX current of 10.3 mA, 200 nA register retention.
153		-)))
154		-* (((
155		-Fully integrated synthesizer with a resolution of 61 Hz.
156		-)))
157		-* (((
158		-FSK, GFSK, MSK, GMSK, LoRaTM and OOK modulation.
159		-)))
160		-* (((
161		-Built-in bit synchronizer for clock recovery.
162		-)))
163		-* (((
164		-Preamble detection.
165		-)))
166		-* (((
167		-127 dB Dynamic Range RSSI.
168		-)))
169		-* (((
170		-Automatic RF Sense and CAD with ultra-fast AFC.
171		-)))
172		-* (((
173		-Packet engine up to 256 bytes with CRC.
174		-
175		-
176		-
177		-)))
178		-
179	179	== 1.3 Features ==
180	180
181		-
182	182	* LoRaWAN Class A & Class C protocol
183		-
184	184	* Optional Customized LoRa Protocol
185		-
186	186	* Frequency Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/RU864/IN865/MA869
187		-
188	188	* AT Commands to change parameters
189		-
190	190	* Remote configure parameters via LoRa Downlink
191		-
192	192	* Firmware upgradable via program port
193		-
194	194	* Counting
195	195
196	196	== 1.4 Applications ==
197	197
198		-
199	199	* Smart Buildings & Home Automation
200		-
201	201	* Logistics and Supply Chain Management
202		-
203	203	* Smart Metering
204		-
205	205	* Smart Agriculture
206		-
207	207	* Smart Cities
208		-
209	209	* Smart Factory
210	210
211	211	== 1.5 Hardware Variants ==
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227	227
228	228	= 2. Power ON Device =
229	229
230		-
231		-(((
232	232	The LT controller can be powered by 7 ~~ 24V DC power source. Connect VIN to Power Input V+ and GND to power input V- to power the LT controller.
233		-)))
234	234
235		-(((
236	236	PWR will on when device is properly powered.
237	237
238		-
239		-)))
240		-
241	241	[[image:1653297104069-180.png]]
242	242
243	243
...	...	@@ -1163,14 +1163,14 @@
1163	1163
1164	1164	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:320px" %)
1165	1165	|(% style="background-color:#4f81bd; color:white" %)**Downlink Code**|(% style="background-color:#4f81bd; color:white" %)**RO1**|(% style="background-color:#4f81bd; color:white" %)**RO2**
1166		-|03  00  11|Close|No Action
1167		-|03  01  11|Open|No Action
1168		-|03  11  00|No Action|Close
1169		-|03  11  01|No Action|Open
1170		-|03  00  00|Close|Close
1171		-|03  01  01|Open|Open
1172		-|03  01  00|Open|Close
1173		-|03  00  01|Close|Open
	1070	+|03  00  11|Open|No Action
	1071	+|03  01  11|Close|No Action
	1072	+|03  11  00|No Action|Open
	1073	+|03  11  01|No Action|Close
	1074	+|03  00  00|Open|Open
	1075	+|03  01  01|Close|Close
	1076	+|03  01  00|Close|Open
	1077	+|03  00  01|Open|Close
1174	1174	)))
1175	1175
1176	1176	(% style="color:red" %)**Device will upload a packet if downlink code executes successfully.**
...	...	@@ -1664,8 +1664,8 @@
1664	1664	== 3.7 LEDs Indicators ==
1665	1665
1666	1666
1667		-(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
1668		-|(% style="background-color:#4f81bd; color:white; width:50px" %)**LEDs**|(% style="background-color:#4f81bd; color:white; width:470px" %)**Feature**
	1571	+(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:510px" %)
	1572	+|(% style="background-color:#4f81bd; color:white; width:50px" %)**LEDs**|(% style="background-color:#4f81bd; color:white; width:460px" %)**Feature**
1669	1669	|**PWR**|Always on if there is power
1670	1670	|**SYS**|(((
1671	1671	After device is powered on, the SYS will **fast blink in GREEN** for 5 times, means RS485-LN start to join LoRaWAN network. If join success, SYS will be **on GREEN for 5 seconds. **SYS will **blink Blue** on every upload and **blink Green** once receive a downlink message.
...	...	@@ -1708,10 +1708,6 @@
1708	1708	LT supports AT Command set. User can use a USB to TTL adapter plus the 3.5mm Program Cable to connect to LT for using AT command, as below.
1709	1709	)))
1710	1710
1711		-(((
1712		-
1713		-)))
1714		-
1715	1715	[[image:1653358238933-385.png]]
1716	1716
1717	1717