CS-3G Digital Transceiver Kits (including the COM111 modem)
C-2
11.
The logger should then report “opening 2” (in the case of ComME), which
means you now have a “talk through” path to the modem, i.e. it should
respond as if connected directly to the PC.
12.
If the modem is being use for GPRS/£G use and particularly if the modem
is set to use its own TCP/IP stack it will be necessary to get it back into
command mode, by sending “+++” then waiting for a response, normally
OK.
13.
Then to check it is responding normally send “ATZ” and press enter, the
modem at a minimum should respond “0” or “OK”, unless it has been
configured at the wrong baud rate or all responses have been turned off.
14.
If there is no response at all, please consider the baud rate may not be set as
expected, so press ESC a few times to quit the talk through session, back
out and return to step (5) above to change the baud rate of the logger serial
port, then try again.
15.
Once a valid response is received, enter the configuration command you
need to change as normal, remembering to save the setting to non-volatile
memory if required (AT&W).
16.
When completed press “ESC” three times to quit the talk-through mode.
17.
If you are using the modem in GPRS/3G mode remember to go back to the
PPP setting tab and re-enable PPP on the port to which the modem is
connected.
