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C-5
9123-A2-GB20-10
July 2000
" Procedure
To configure an external modem:
1. Disconnect the asynchronous terminal from the standard cable. See
page C-4 for an illustration of the COM Port connection.
2. Reconnect the crossover cable to the external modem.
3. 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.