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41	41	**Hardware System:**
42	42
43	43	* STM32L072CZT6 MCU
44		-* SX1276/78 Wireless Chip
	44	+* SX1276/78 Wireless Chip
45	45	* Power Consumption (exclude RS485 device):
46		-** Idle: 6uA@3.3v
	46	+** Idle: 32mA@12v
47	47
48	48	*
49		-** 20dB Transmit: 130mA@3.3v
	49	+** 20dB Transmit: 65mA@12v
50	50
51	51	**Interface for Model:**
52	52
53		-* 1 x RS485 Interface
54		-* 1 x TTL Serial , 3.3v or 5v.
55		-* 1 x I2C Interface, 3.3v or 5v.
56		-* 1 x one wire interface
57		-* 1 x Interrupt Interface
58		-* 1 x Controllable 5V output, max
	53	+* RS485
	54	+* Power Input 7~~ 24V DC.
59	59
60	60	**LoRa Spec:**
61	61
...	...	@@ -64,27 +64,30 @@
64	64	** Band 2 (LF): 410 ~~ 528 Mhz
65	65	* 168 dB maximum link budget.
66	66	* +20 dBm - 100 mW constant RF output vs.
	63	+* +14 dBm high efficiency PA.
67	67	* Programmable bit rate up to 300 kbps.
68	68	* High sensitivity: down to -148 dBm.
69	69	* Bullet-proof front end: IIP3 = -12.5 dBm.
70	70	* Excellent blocking immunity.
	68	+* Low RX current of 10.3 mA, 200 nA register retention.
71	71	* Fully integrated synthesizer with a resolution of 61 Hz.
72		-* LoRa modulation.
	70	+* FSK, GFSK, MSK, GMSK, LoRaTM and OOK modulation.
73	73	* Built-in bit synchronizer for clock recovery.
74	74	* Preamble detection.
75	75	* 127 dB Dynamic Range RSSI.
76		-* Automatic RF Sense and CAD with ultra-fast AFC. ​​​
	74	+* Automatic RF Sense and CAD with ultra-fast AFC.
	75	+* Packet engine up to 256 bytes with CRC.
77	77
78	78	== 1.3 Features ==
79	79
80		-* LoRaWAN Class A & Class C protocol (default Class A)
	79	+* LoRaWAN Class A & Class C protocol (default Class C)
81	81	* Frequency Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865/RU864
82	82	* AT Commands to change parameters
83		-* Remote configure parameters via LoRaWAN Downlink
	82	+* Remote configure parameters via LoRa Downlink
84	84	* Firmware upgradable via program port
85	85	* Support multiply RS485 devices by flexible rules
86	86	* Support Modbus protocol
87		-* Support Interrupt uplink
	86	+* Support Interrupt uplink (Since hardware version v1.2)
88	88
89	89	== 1.4 Applications ==
90	90
...	...	@@ -97,53 +97,39 @@
97	97
98	98	== 1.5 Firmware Change log ==
99	99
100		-[[RS485-BL Image files – Download link and Change log>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/RS485-BL/Firmware/||style="background-color: rgb(255, 255, 255);"]]
	99	+[[RS485-LN Image files – Download link and Change log>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/]]
101	101
102	102	== 1.6 Hardware Change log ==
103	103
104	104	(((
105		-v1.4
106		-)))
107		-
108	108	(((
109		-~1. Change Power IC to TPS22916
110		-)))
	105	+v1.2: Add External Interrupt Pin.
111	111
112		-
113		-(((
114		-v1.3
	107	+v1.0: Release
115	115	)))
116		-
117		-(((
118		-~1. Change JP3 from KF350-8P to KF350-11P, Add one extra interface for I2C and one extra interface for one-wire
119	119	)))
120	120
	111	+= 2. Power ON Device =
121	121
122	122	(((
123		-v1.2
124		-)))
	114	+The RS485-LN can be powered by 7 ~~ 24V DC power source. Connection as below
125	125
	116	+* Power Source VIN to RS485-LN VIN+
	117	+* Power Source GND to RS485-LN VIN-
	118	+
126	126	(((
127		-Release version ​​​​​
	120	+Once there is power, the RS485-LN will be on.
128	128	)))
129	129
130		-= 2. Pin mapping and Power ON Device =
131		-
132		-(((
133		-The RS485-BL is powered on by 8500mAh battery. To save battery life, RS485-BL is shipped with power off. User can put the jumper to power on RS485-BL.
	123	+[[image:1653268091319-405.png]]
134	134	)))
135	135
136		-[[image:1652953055962-143.png||height="387" width="728"]]
137		-
138		-
139		-The Left TXD and RXD are TTL interface for external sensor. TTL level is controlled by 3.3/5v Jumper.
140		-
141	141	= 3. Operation Mode =
142	142
143	143	== 3.1 How it works? ==
144	144
145	145	(((
146		-The RS485-BL is configured as LoRaWAN OTAA Class A 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-BL. It will auto join the network via OTAA.
	131	+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.
147	147	)))
148	148
149	149	== 3.2 Example to join LoRaWAN network ==
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150	150
151	151	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.
152	152
153		-[[image:1652953414711-647.png||height="337" width="723"]]
	138	+[[image:1653268155545-638.png||height="334" width="724"]]
154	154
155	155	(((
156		-The RS485-BL in this example connected to two RS485 devices for demonstration, user can connect to other RS485 devices via the same method.
157		-)))
	141	+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:
158	158
	143	+485A+ and 485B- of the sensor are connected to RS485A and RA485B of RS485-LN respectively.
	144	+
	145	+[[image:1653268227651-549.png||height="592" width="720"]]
	146	+
159	159	(((
160		-The LG308 is already set to connect to [[TTN V3 network >>url:https://www.thethingsnetwork.org/]]. So what we need to now is only configure the TTN V3:
	148	+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:
161	161	)))
162	162
163	163	(((
164		-**Step 1**: Create a device in TTN V3 with the OTAA keys from RS485-BL.
	152	+**Step 1**: Create a device in TTN V3 with the OTAA keys from RS485-LN.
165	165	)))
166	166
167	167	(((
168		-Each RS485-BL is shipped with a sticker with unique device EUI:
	156	+Each RS485-LN is shipped with a sticker with unique device EUI:
169	169	)))
	158	+)))
170	170
171	171	[[image:1652953462722-299.png]]
172	172
173	173	(((
	163	+(((
174	174	User can enter this key in their LoRaWAN Server portal. Below is TTN V3 screen shot:
175	175	)))
176	176
...	...	@@ -177,13 +177,11 @@
177	177	(((
178	178	Add APP EUI in the application.
179	179	)))
	170	+)))
180	180
181		-
182		-
183		-
184	184	[[image:image-20220519174512-1.png]]
185	185
186		-[[image:image-20220519174512-2.png||height="328" width="731"]]
	174	+[[image:image-20220519174512-2.png||height="323" width="720"]]
187	187
188	188	[[image:image-20220519174512-3.png||height="556" width="724"]]
189	189

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