Westermo GD-01 - Manual (Page 193)

193 6196-2220
Application example
These tests have been made with PC to modem cables, fully wired.The modems/
adapters have been factory default before any commands have been sent.
Make sure the SIM card supports data transmission in both directions.
The AT-commands can be sent from a terminal or a PC with a terminal program like
Microsoft Windows Hyperterminal or something similar program.
Make sure that the serial speed and data format is the same in both the modem and
the terminal.
Factory default in GD-01/GD-02 is 8,N,1 and 9 600 bit/s on the DTE side.
Hints!
Always check the Signal Quality with AT+CSQ before dialling.
If current configuration is needed next time the unit is powered up, save with AT&W.
To establish a connection, use the ATD command
To enter online command mode when a connection is established, type +++
(No CR/Enter) and wait until an “OK” result code will appear on the screen.
To hangup a connection when in online command mode, type ATH.
The connection can be shut down from both sides.
B A C K