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21		-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.
	21	+The Dragino RS485-LN is a RS485 to LoRaWAN Converter. It converts the RS485 signal into LoRaWAN wireless signal which simplify the IoT installation and reduce the installation/maintaining cost.
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25		-RS485-LN allows user to (% style="color:blue" %)**monitor / control RS485 devices**(%%) and reach extremely long ranges. It provides ultra-long range spread spectrum communication and high interference immunity whilst minimizing current consumption. It targets professional wireless sensor network applications such as irrigation systems, smart metering, smart cities, smartphone detection, building automation, and so on.
	25	+RS485-LN allows user to monitor / control RS485 devices and reach extremely long ranges. It provides ultra-long range spread spectrum communication and high interference immunity whilst minimizing current consumption. It targets professional wireless sensor network applications such as irrigation systems, smart metering, smart cities, smartphone detection, building automation, and so on.
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29		-(% style="color:blue" %)**For data uplink**(%%), RS485-LN sends user-defined commands to RS485 devices and gets the return from the RS485 devices. RS485-LN will process these returns according to user-define rules to get the final payload and upload to LoRaWAN server.
	29	+For data uplink, RS485-LN sends user-defined commands to RS485 devices and gets the return from the RS485 devices. RS485-LN will process these returns according to user-define rules to get the final payload and upload to LoRaWAN server.
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33		-(% 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.
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35		-(% 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]]
	33	+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.
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39	39	[[image:1653267211009-519.png||height="419" width="724"]]
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41		-
42	42	== 1.2 Specifications ==
43	43
44		-
45	45	**Hardware System:**
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47	47	* STM32L072CZT6 MCU
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48	48	* SX1276/78 Wireless Chip
49	49	* Power Consumption (exclude RS485 device):
50	50	** Idle: 32mA@12v
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	48	+*
51	51	** 20dB Transmit: 65mA@12v
52	52
53	53	**Interface for Model:**
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76	76	* Automatic RF Sense and CAD with ultra-fast AFC.
77	77	* Packet engine up to 256 bytes with CRC.
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80		-
81	81	== 1.3 Features ==
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83	83	* LoRaWAN Class A & Class C protocol (default Class C)
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89	89	* Support Modbus protocol
90	90	* Support Interrupt uplink (Since hardware version v1.2)
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92		-
93		-
94	94	== 1.4 Applications ==
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96	96	* Smart Buildings & Home Automation
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100	100	* Smart Cities
101	101	* Smart Factory
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103		-
104		-
105	105	== 1.5 Firmware Change log ==
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107	107	[[RS485-LN Image files – Download link and Change log>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/]]
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109		-
110	110	== 1.6 Hardware Change log ==
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114	114	v1.2: Add External Interrupt Pin.
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116	116	v1.0: Release
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134	134	[[image:1653268091319-405.png]]
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139	139	= 3. Operation Mode =
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144	144	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.
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148	148
149	149	== 3.2 Example to join LoRaWAN network ==
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153	153	[[image:1653268155545-638.png||height="334" width="724"]]
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158	158	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:
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162	162	485A+ and 485B- of the sensor are connected to RS485A and RA485B of RS485-LN respectively.
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165	165	[[image:1653268227651-549.png||height="592" width="720"]]
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