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8 8  **RS485-BL – Waterproof RS485 to LoRaWAN Converter User Manual**
9 9  
10 10  
11 -**Table of Contents:**
12 12  
13 13  
14 14  
15 15  
16 16  
17 -= 1.Introduction =
18 18  
19 -== 1.1 What is RS485-BL RS485 to LoRaWAN Converter ==
17 +1. Introduction
18 +11. What is RS485-BL RS485 to LoRaWAN Converter
20 20  
21 -(((
22 -
23 -)))
24 24  
25 -(((
26 26  The Dragino RS485-BL is a **RS485 / UART to LoRaWAN Converter** for Internet of Things solutions. User can connect RS485 or UART sensor to RS485-BL converter, and configure RS485-BL to periodically read sensor data and upload via LoRaWAN network to IoT server.
27 -)))
28 28  
29 -(((
23 +
30 30  RS485-BL can interface to RS485 sensor, 3.3v/5v UART sensor or interrupt sensor. RS485-BL provides **a 3.3v output** and** a 5v output** to power external sensors. Both output voltages are controllable to minimize the total system power consumption.
31 -)))
32 32  
33 -(((
26 +
34 34  RS485-BL is IP67 **waterproof** and powered by **8500mAh Li-SOCI2 battery**, it is designed for long term use for several years.
35 -)))
36 36  
37 -(((
29 +
38 38  RS485-BL runs standard **LoRaWAN 1.0.3 in Class A**. It can reach long transfer range and easy to integrate with LoRaWAN compatible gateway and IoT server.
39 -)))
40 40  
41 -(((
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42 42  For data uplink, RS485-BL sends user-defined commands to RS485 devices and gets the return from the RS485 devices. RS485-BL will process these returns data according to user-define rules to get the final payload and upload to LoRaWAN server.
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44 44  
45 -(((
35 +
46 46  For data downlink, RS485-BL runs in LoRaWAN Class A. When there is downlink commands from LoRaWAN server, RS485-BL will forward the commands from LoRaWAN server to RS485 devices.
47 -)))
48 48  
49 -(((
38 +
50 50  Each RS485-BL pre-load with a set of unique keys for LoRaWAN registration, register these keys to LoRaWAN server and it will auto connect after power on.
51 -)))
52 52  
53 53  [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image002.png]]
54 54  
55 -== 1.2 Specifications ==
56 56  
44 +1.
45 +11. Specifications
46 +
57 57  **Hardware System:**
58 58  
59 59  * STM32L072CZT6 MCU
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64 64  *
65 65  ** 20dB Transmit: 130mA@3.3v
66 66  
57 +
67 67  **Interface for Model:**
68 68  
69 69  * 1 x RS485 Interface
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73 73  * 1 x Interrupt Interface
74 74  * 1 x Controllable 5V output, max
75 75  
67 +
76 76  **LoRa Spec:**
77 77  
78 78  * Frequency Range:
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89 89  * Built-in bit synchronizer for clock recovery.
90 90  * Preamble detection.
91 91  * 127 dB Dynamic Range RSSI.
92 -* Automatic RF Sense and CAD with ultra-fast AFC. ​​​
84 +* Automatic RF Sense and CAD with ultra-fast AFC.
93 93  
94 -== 1.3 Features ==
95 95  
87 +*
88 +*1. Features
96 96  * LoRaWAN Class A & Class C protocol (default Class A)
97 97  * Frequency Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865/RU864
98 98  * AT Commands to change parameters
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102 102  * Support Modbus protocol
103 103  * Support Interrupt uplink
104 104  
105 -== 1.4 Applications ==
106 106  
99 +*
100 +*1. Applications
107 107  * Smart Buildings & Home Automation
108 108  * Logistics and Supply Chain Management
109 109  * Smart Metering
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111 111  * Smart Cities
112 112  * Smart Factory
113 113  
114 -== 1.5 Firmware Change log ==
115 115  
116 -[[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);"]]
109 +1.
110 +11. Firmware Change log
117 117  
118 -== 1.6 Hardware Change log ==
112 +[[RS485-BL Image files – Download link and Change log>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/RS485-BL/Firmware/]]
119 119  
120 -(((
114 +
115 +1.
116 +11. Hardware Change log
117 +
118 +
121 121  v1.4
122 -)))
123 123  
124 -(((
125 125  ~1. Change Power IC to TPS22916
126 -)))
127 127  
128 128  
129 -(((
130 130  v1.3
131 -)))
132 132  
133 -(((
134 134  ~1. Change JP3 from KF350-8P to KF350-11P, Add one extra interface for I2C and one extra interface for one-wire
135 -)))
136 136  
137 137  
138 -(((
139 139  v1.2
140 -)))
141 141  
142 -(((
143 -Release version ​​​​​
144 -)))
131 +Release version
145 145  
146 -= 2. Pin mapping and Power ON Device =
147 147  
134 +
135 +
136 +
137 +1. Pin mapping and Power ON Device
138 +
148 148  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.
149 149  
150 -[[image:1652953055962-143.png||height="387" width="728"]]
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152 152  [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image003.png]]
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145 +
154 154  The Left TXD and RXD are TTL interface for external sensor. TTL level is controlled by 3.3/5v Jumper.
155 155  
156 156  
157 157  
158 -3. Operation Mode
159 -3.1 How it works?
160 160  
151 +
152 +
153 +1. Operation Mode
154 +11. How it works?
155 +
161 161  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.
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