Total Control MP/16, Operator'S Manual

Page: 133 / 182

AT Command Reference D-9
rate, for example, 38.4K bps. If the connection is not under
error con trol, the modem behaves as if it were set to &B0 and
switches its serial port rate to match the connection rate of
each call.
&C n Carrier Detect operations.
At power-on and reset, the modem
operates according to the setting of DIP switch 6. This command is
not stored in non volatile memory as a power-on/reset default.
&C0 CD override, CD always ON.
&C1 Normal CD operations. The modem sends a CD signal when
it connects with another modem and drops the CD when it
disconnects.
&D n Data Terminal Ready (DTR) operations.
At power-on and reset,
the modem operates according to the setting of DIP switch 1. This
command cna NOT be stored in non volatile memory as a power-
on/reset default.
&D0 DTR override. The modem operates as though the DTR is
always ON.
&D1 Advance usage: If issued before connecting with another
modem, the modem can enter online command mode during
a call by toggling DTR. &D1 functions similarly to the escape
code (+++), except that this setting is independent of DIP
switch 9.
If DIP switch 1 is ON (DTR override) when you issue the
&D1 command, the DTR override is automatically turned
off. However, if you change the setting of DIP switch 1
after
issuing &D1, the DIP switch setting takes precedence.
Return online with the O
n
command, or hang up with the H
n
command.
&D2 Normal DTR operations. The terminal or computer must
send a DTR signal for the modem to accept commands.
Dropping DTR terminates a call.
&F n
Load configuration template from ROM. Any one of the templates
may be loaded into current memory (AT&F
n ) or written to
NVRAM (AT&F n &W), however, only one template may be loaded
at a time. Templates overwrite all settings, including S-Registers.
&F0
Low performance template
. This template does not include
features such as a fixed serial port rate or hardware flow
control. It does offer compatibility with non-typical