Date Code 20010518 Appendix B B-13
SEL-2020 Instruction Manual
Table B.3: AT Command Set Description - Part # XE1414A (continued)
Other
Commands
Function
%E0 Disable line quality monitor/auto retrain
%E1 Enable line quality monitor/auto retrain
%E2 Enable line quality and fallback/fall forward*
%L Read received line signal level
%Q Read line signal quality
\A0 Set maximum MNP block size to 64 characters
\A1 Set maximum MNP block size to 128 characters
\A2 Set maximum MNP block size to 192 characters
\A3 Set maximum MNP block size to 256 characters*
\Bn Transmit break of n x 100 ms.
\G0 Disable modem port flow control*
\G1 XON/XOFF modem port flow control
\J0 Serial port speed independent of link speed
\J1 Serial port speed automatically set to link speed*
\Kn Break control
Break received from host with Reliable link:
n=0,2,4 Enter on-line command mode; do not transmit break
n=1 Purge buffers, immediately transmit break
n=5 Send break in sequence with buffered data*
Break received from host with Direct link:
n=0,4 Immediately transmit break, then enter on-line command mode
n=1,3,5 Immediately send break*
n=2 Enter command mode, but do not transmit break signal
Break received from host with Normal link:
n=0,1 Purge buffers, immediately send break to the host
n=2,3,5 Immediately send break to the host*
n=4 Send break to the host in sequence with data
Host initiates break (AT\B); Reliable link:
n=0,1,3 Purge buffers; immediately transmit break
n=2 Immediately transmit break
n=4,5 Transmit break in sequence with data*
* Modem factory default settings
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