Carrier Detect (&Cn); Rack Controller Unit Access (%Rn); Touch-Tone Recognition (% Tn) - US Robotics COURIER User Manual

COURIER HIGH SPEED MODEMS
CARRIER DETECT (&Cn)
This command, like DIP switch 6, controls Carrier Detect (CD)
signaling from the modem to the DTE. The modem is factory set
with DIP switch 6 OFF, normal CD operations and the override
disabled.
If you want to change the modem's Carrier Detect operations
during a session, you can either change the DIP switch position
or use the &C command. Whichever method you choose, check
either the quick-configuration guide that came with the modem
or your communications software manual to see which setting is
required.
NOTE: At power-on and reset, the modem operates according
to the DIP switch setting. This command is not stored in non-
volatile memory as a power-on/ reset default.
&CO CD override, CD always ON.
&Cl Normal CD operations. The Courier sends a CD signal
when it connects with another modem and drops CD on
disconnect.
RACK CONTROLLER UNIT ACCESS (%Rn)
If the Courier modem is part of a USRobotics Total Control
Modem Management System, setting the modem to %Rl allows
an operator to use the modem to call a Rack Controller Unit
(RCU) at a remote site.
%RO Normal operations, RCU access disabled. Default.
%Rl RCU access enabled.
TOUCH-TONE RECOGNITION MODE {% T)
This command enables the modem, when off hook, to detect the
Touch-Tone frequencies of dialing modems. %Tis meant
primarily for use with network applications, but may also be
integrated into certain software programs. For example, % T
could be used in a security program to identify incoming Touch-
T one security codes.
4-18 Interface Controls
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