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4. Feature-Specific Configuration
4-2 December 2002 9000-A2-GB31-00
Setting Up an External Modem
A standard EIA-232-D crossover cable can be used to connect the COM port to an
external modem. The external modem must be configured so it is compatible with
the FrameSaver unit.
Procedure
To configure an external modem:
1. Connect the crossover cable to the external modem.
2. Enable auto-answer on your modem, and configure it to use the following
LSD, DSR, CTS, RTS, and DTR control leads.
See the table below for AT D0 command strings. Use the following command
string:
AT &C0 &D2 &S0 &R1 \D0 S0=1
AT Command String To configure the modem to . . .
&C0 Force LSD on.
&D2 Drop the connection when the unit drops DTR.
&S0 Force DSR on.
&R1 Ignore RTS.
\D0 Force CTS on.
S0=1 Automatically answer incoming calls.