Physical Features - US Robotics USR3520 User Manual

Physical Features

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1. WWAN Diversity Antenna Connector - SMA-female antenna port for connection to a diversity
antenna or a GPS antenna. See the
2. Gateway LEDs – The seven Gateway LEDs indicate the operating status of the Gateway base unit.
See the USR3520/USR803520 Gateway User Guide
3. Ethernet Port – 10/100 Mbps RJ-45. See the
4. WWAN Main Antenna Connector - SMA-female antenna port for connection to a cellular antenna.
See the USR3520/USR803520 Gateway User Guide
5. Terminal Serial Port - The terminal serial port provides an RS-232 asynchronous serial DCE
connection via a DB9-F connector. See
connect this port to the DTE serial port of a terminal that will send modem AT commands to the
Modemulator. In gateway mode, this port is configured and activated by the Plugin tab of the gateway's
graphical user interface.
6. Mode Switch – This switch selects the operating mode. See Table 1 below for details.
Modemulator User Guide
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USR3520/USR803520 Gateway User Guide
Appendix J
Page 12 of 113
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for details.
USR3520/USR803520 Gateway User Guide
for details.
for pinout details. Use an appropriate serial cable to
for details.
for details.