Cabletron Systems CSMIM-T1 Installation Manual page 130

Chapter 7: AT Commands and Registers
%B n Modem-Port Bps Rate
Where n = 75; 300; 600; 1,200; 2,400; 4,800; 7,200; 9,600;
12,000; 14,400; 16,800; 19,200; 21,600; 24,000; 26,400; 28,800
bps.
When you enter this locally, the modem-port bps rate is set.
Downshifting can still take place.
If %G0 is set, an AT issued locally causes the modem-port
NOTES
speed to match the serial-port speed, regardless of any
previous %B setting.
If %G1 is set, the modem speed is changed only when you
enter a %Bn command. Entering a %F1, %F2, or %F3 causes
a change to 1,200 bps.
\B n Transmit Break
Where n is an integer between 1 and 9 indicating the time (in
increments of 100 milliseconds) to send the Break. (Default is 300
milliseconds.) During a reliable link the Break always equals 300
milliseconds.
Transmits a Break to the remote system from command state. To
return to connect state, type: ATO <Enter> (See also \K.).
%C n
Compression Control
%C0 Disables data compression.
%C1 Enables MNP 5 Data Compression only.
%C2 Enables V.42bis compression only.
%C3 Enables both V.42bis and MNP 5 Data Compression. The modem
matches the capability of the remote modem
Determines whether the modem attempts to use data compression
during reliable connections. We recommend leaving this
command at its default (%C3). This allows the modem to
establish a reliable connection using either MNP 5 Data
Compression or V.42bis compression, depending on the
capability of the remote modem.
7-4 CSMIM-T1 Hardware Installation Guide