US Robotics COURIER - Modem Clock Usage (Kn); Transmitter Enable;Disable (Cn); BREAK HANDLING (& Yn)

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COURIER HIGH SPEED MODEMS
MODEM CLOCK USAGE (Kn)
The modem clock is used as a call-duration timer or as a real-
time clock. Used in conjunction with the In (Inquiry) command,
the modem returns the duration of the last call in hours,
minutes, and seconds or the actual time.
KO
K1
Call-Duration Mode. Default. The modem times each call
from CONNECT to NO CARRIER, and stores the infor-
mation until the next connection or when the modem is
reset.
At A Tl3 <Enter>, the modem displays the call's
duration. If you wish, you can maintain a call log by
printing this information after each call.
Real-Time
Mode. The clock operates as a real-time clock
regardless of the presence of a carrier. Set the clock (in
military time)
by specifying the hour, minutes, and
seconds as in the following example, which sets the clock
at the real time of 1:30 p.m.
ATl3=13:30:00 K1 <Enter>
At ATI3, the modem displays the real time. You'll need to
set
the clock each time you power on the modem, but the
clock is not affected by the reset command, A TZ.
TRANSMITTER ENABLE/DISABLE (Cn)
If an additional terminal and modem share the phone line for
monitoring purposes, the second modem is placed in Receive
Only state by disabling its transmitter. Use this feature only at
1200 or 300 bps.
CO Transmitter disabled. Modem is set to Receive Only.
C1 Transmitter enabled. Default.
BREAK HANDLING (& Yn)
This command allows you to send a break to abort data transfer
without disconnecting from the phone link. The following
options are available.
& YO Destructive, no Break transmitted: the modem clears the
data from its transmit buffer (all data is lost) but does not
transmit the Break to the remote modem.
Internal Controls 5-11