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Modemulator User Guide
Page
12
of
113
Physical Features
1.
WWAN Diversity Antenna Connector
- SMA-female antenna port for connection to a diversity
antenna or a GPS antenna.
USR3520/USR803520 Gateway User Guide
2.
Gateway LEDs
– The seven Gateway LEDs indicate the operating status of the Gateway base unit.
USR3520/USR803520 Gateway User Guide
3.
Ethernet Port
USR3520/USR803520 Gateway User Guide
4.
WWAN Main Antenna Connector -
SMA-female
antenna port for connection to a cellular antenna.
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
for pinout details. Use an appropriate serial cable to
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.
1
2
4
5
6
7
8
2
3