User manual

Setting TCEQ Networking Parameters for an Enfora GSM 1208
5
To send the previously saved text file, select TransferÆSend Text File while connected
to the modem. Select the file and follow the prompts.
As each command is executed, an “OK” response should appear. After the script is
finished, power off the modem and insert the SIM Card and connect the antenna. Turn
power back on. This can be done while still connected with the serial cable and logged in
with Hyperterminal.
After powering on the modem, the AT-Command Interpreter ready may appear. Type
the following and press enter:
ATX4
OK response
AT&W
OK response
AT$RESET
(This command will disappear and the modem will act as if it was power cycled)
After some seconds, AT-Command Interpreter ready followed by LISTEN
10.200.4.XX (where XX is the network identification) should appear. If the service for
the modem has been activated, the green LED should be solid. Type AT+CREG? and
see the response.
AT+CREG?– returns two numbers 0,n where n =
0 = not reg, not searching
1 = reg on home network
2 = not reg, but searching
3 = reg denied
4 = unknown
5 = reg, roaming
If a tower is found, it should respond with +CREG: 0, 1. To test if communicating with a
Zeno 3200, contact someone at TCEQ with access behind their firewall. Access
Hyperterminal, and setup for a TCP/IP(Winsock) connection. Enter the network address
such as 10.200.4.XX where XX is the number assigned to the modem in the script. If the
Zeno 3200 responds then the modem should be ready to go. Power down modem and put
into service.
Do the same for other modems, but make sure to change channel/IP number in the script.
Here are some other modem commands to help determine activation:
AT%BAND=1,16 --this command forces the modem to seek American tower to
transmit at 850 MHz
AT%BAND=1,31 – this command allows the modem to roam to any tower