USR-DR502-E User Manual Technical Support: h.usriot.com
Jinan USR IOT Technology Limited www.pusr.com
USR-DR502-E User Manual.....................................................................................................................................................1
1. Introduction..............................................................................................................................................................................3
1.1. Overview...................................................................................................................................................................... 3
1.2. Features....................................................................................................................................................................... 3
2. Get Started.............................................................................................................................................................................. 4
2.1. Specification................................................................................................................................................................ 4
2.2. Hardware..................................................................................................................................................................... 5
2.2.1. Dimensions...................................................................................................................................................... 5
2.2.2. Interface........................................................................................................................................................... 6
2.2.3. Indicators..........................................................................................................................................................6
2.3. Connecting Hardware................................................................................................................................................ 7
3. Utility Configuration................................................................................................................................................................8
3.1. Download the Utility................................................................................................................................................... 8
3.2. Starting the Configuration Utility.............................................................................................................................. 8
4. Serial Port..............................................................................................................................................................................10
4.1. Basic Parameters.....................................................................................................................................................10
4.2. Frame Forming Mechanism....................................................................................................................................11
4.2.1. Time Trigger.................................................................................................................................................. 11
4.2.2. Length trigger................................................................................................................................................ 11
5. Selecting an Operating Mode............................................................................................................................................ 12
5.1. Transparent Mode....................................................................................................................................................12
5.2. HTTPD Client Mode.................................................................................................................................................15
5.3. SMS Mode.................................................................................................................................................................17
6. General Function..................................................................................................................................................................20
6.1. Identity Package.......................................................................................................................................................20
6.2. Heartbeat Package.................................................................................................................................................. 22
6.3. Socket Distribution Protocol................................................................................................................................... 23
6.4. USR Cloud................................................................................................................................................................ 24
6.5. Backup Socket..........................................................................................................................................................24
6.6. Security...................................................................................................................................................................... 25
6.7. NTP............................................................................................................................................................................ 27
6.8. FTP Upgrade............................................................................................................................................................ 28
6.9. Base Station Geolocation....................................................................................................................................... 28
6.10. Firmware Upgrade................................................................................................................................................. 28
6.11. Restore to Factory Default Settings.................................................................................................................... 29
6.12. Timeout Restart......................................................................................................................................................30
7. AT Commands......................................................................................................................................................................30
7.1. AT Command Settings............................................................................................................................................ 30
7.2. Serial AT Commands.............................................................................................................................................. 31
7.3. Network AT Commands.......................................................................................................................................... 31
7.4. SMS AT Commands................................................................................................................................................ 32
