User guide

Option Settings
B-16 Issue 1 September 1995
DM424 Modem Option Settings
Change the following options from their defaults. Only the options that require
changing are listed — leave the defaults for all others.
■ On the DEFINITY AUDIX system PORT A* modem, set the modem to the
Answer Only Mode of Operation (refer to the manual supplied with the
DM424 modem for details)
■ Also, set switch 2 to the ON position (modem does not recognize AT
commands; dumb mode)
■ After setting switch 2, turn the modem off then back on.
DM224 Modem Option Settings
To set the options, the modem must be connected to a terminal (for example, the
715 BCT) with the terminal speed set at 2400 bps.
Change the following options from their defaults. Only the options that require
changing are listed — leave the defaults for all others.
■ Set AT&C1 — DCD follows real carrier (it is not asserted all the time)
■ Set AT&D2 — Modem hangs up and returns to command state after DTR
changes from active to inactive (autoanswer is disabled as long as DTR is
not active)
■ Set S0=1 — Answer after one ring (the default, 0, specifies don’t answer)
■ Set ATV1 — Results from the modem are ASCII strings Save these
changes to both profiles via at&w0 and at&w1.
212AR Modem Option Settings
Set the switches on the 212AR modem as follows:
Also, make sure you press the HS button on the front of the 212AR modem.
NOTE:
This modem can be used only at 1200 baud. Make sure you set the
terminal option accordingly.
Option Switch
Rocker Number 1-N
(O=Open, C=Closed
S1 COC
S2 CCOOOCCOO
S3 CCCCOOCO Option Straps
S4 OO