USR-G781 User Manual
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Jinan USR IOT Technology Limited
2
Contents
USR-G781 User Manual
..........................................................................................................................................1
Brief Introduction
............................................................................................................................................. 4
Features
............................................................................................................................................................... 4
1. Get Start
...................................................................................................................................................................5
1.1. Application
.................................................................................................................................................. 5
1.1.1. Application Diagram
......................................................................................................................5
1.1.2. Hardware Dimensions
...................................................................................................................6
1.1.3. Hardware Interface
........................................................................................................................ 7
1.1.4. LED Indicator
...................................................................................................................................8
1.2. Module Default Parameters
.....................................................................................................................8
1.3. Basic Parameters
....................................................................................................................................... 9
1.4. Frequency Band
........................................................................................................................................10
1.5. Hardware Introductions
.........................................................................................................................10
2. Product Functions
............................................................................................................................................... 12
2.1. APN
..............................................................................................................................................................12
2.2. Router Functions
......................................................................................................................................13
2.2.1. Configuration procedure
............................................................................................................ 13
2.2.2. Networking mode
.........................................................................................................................14
2.2.2.1. WAN+LAN+4G
.....................................................................................................................14
2.2.2.2. LAN+LAN+4G
......................................................................................................................14
2.2.3. Features
.......................................................................................................................................... 15
2.2.3.1. 4G Interface
........................................................................................................................ 15
2.2.3.2. LAN Interface
......................................................................................................................15
2.2.3.3. WAN Interface
.................................................................................................................... 16
2.2.3.4. DHCP Server function
.......................................................................................................16
2.2.3.5. VPN function
.......................................................................................................................17
2.2.3.6. Static Routes function
...................................................................................................... 17
2.2.3.7. Static IP binding
................................................................................................................ 18
2.2.3.8. Network diagnosis
............................................................................................................ 18
2.2.3.9. Firewall
................................................................................................................................19
2.3. DTU Functions
.......................................................................................................................................... 21
2.3.1. Work Mode
.....................................................................................................................................21
2.3.1.1. Transparent Mode
.............................................................................................................21
2.3.1.2. HTTPD Client Mode
.......................................................................................................... 23
2.3.2. Serial Port
.......................................................................................................................................24
2.3.2.1. Parameters range
..............................................................................................................24
2.3.2.2. Serial Package Methods
...................................................................................................24
2.3.2.3. Baud Rate Synchronization
.............................................................................................24
2.3.3. Features
.......................................................................................................................................... 25
2.3.3.1. Identity packet Function
................................................................................................. 25
2.3.3.2. Heartbeat packet Function
..............................................................................................26
2.4. Basic functions
..........................................................................................................................................26