Rev 1.1 9/22/14 7 - US Robotics Courier USR3500 Getting Started Manual

Getting Started
5.2. Setup ......................................................................................................... 23
5.2.1. Inserting the SIM Card ...................................................................... 24
5.2.2. Extracting the SIM Card .................................................................... 25
5.3. Operational Status ..................................................................................... 26
6. COMMUNICATING WITH THE USR3500 .......................................................... 28
6.1. Communications Testing ........................................................................... 28
6.2. Verifying the Received Signal Strength ..................................................... 29
6.3. Verifying the Network Registration ............................................................ 29
6.4. Checking the Band Selection .................................................................... 30
6.5. Switching Bands ........................................................................................ 31
6.6. Checking the PIN Code Status .................................................................. 33
6.7. Echo Function ........................................................................................... 33
6.8. Enabling/Disabling the Flash LED ............................................................. 33
6.9. Firmware Upgrade Procedure ................................................................... 34
6.10. Main AT Commands for the USR3500 .................................................... 34
6.11. IP Data Connection ................................................................................. 35
7. TROUBLESHOOTING THE USR3500 ............................................................... 36
7.1. No Communications with the USR3500 through the Serial Port................ 36
7.2. Receiving "ERROR" .................................................................................. 37
7.3. Receiving "NO CARRIER" ......................................................................... 37
8. USR3500 ACCESSORIES ................................................................................. 40
8.1. Optional Accessories ................................................................................. 40
8.1.1. 6-wire Cable Accessory .................................................................... 40
8.1.2. GPS Antenna .................................................................................... 41
9. SAFETY RECOMMENDATIONS ....................................................................... 42
9.1. General Safety .......................................................................................... 42
9.2. RF Safety .................................................................................................. 44
9.2.1. General ............................................................................................. 44
9.2.2. Exposure to RF Energy ..................................................................... 44
9.2.3. Efficient Modem Operation ................................................................ 44
9.3. Vehicle Safety ........................................................................................... 44
9.4. Care and Maintenance .............................................................................. 45
9.5. Your Responsibility .................................................................................... 45
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