US Robotics COURIER - S-Register Configuration

COURIER HIGH SPEED MODEMS
& Yl Destructive, expedited: the modem clears the buffer and
immediately sends a Break to the remote modem.
Default.
&Y2 Nondestructive, expedited: the modem retains data in the
transmit buffer, but immediately sends a Break to the
remote modem.
&Y3 Nondestructive, unexpedited (send Break in sequence):
the modem transmits any buffer data received before the
Break, sends the Break, and then sends any subsequent
input from the DTE.
NOTE:
If the call is under MNP5 data compression, destructive
Breaks cause both modems to reset their data compression
tables. When transmission resumes, the modems build new
tables, and the result is lower than normal throughput.
S-REGISTERS
The S-Registers are used to set various timing parameters,
redefinition of selected ASCII characters, and other configuration
options. The defaults reflect typical requirements.
A detailed summary of the S-register functions is in Appendix B.
A less detailed summary is in the Quick-Reference card.
5-12 Internal Controls
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