Boca Pro16 Series - Asynchronous Notes; BSC Notes; HDLC Notes

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BOCA PRO16 Reference Guide
Asynchronous Notes
The Backspace character may be used to edit V.25bis commands in
asynchronous mode. No other editing characters are supported by the
modem.
All control characters, other than Carriage Return and Backspace, are
ignored by your modem.
Your modem will echo Carriage Return characters only, even if your
computer issues Carriage Returns and Line Feeds at the end of a
command.
BSC Notes
Commands must start with a STX and end with an ETX to be accepted
by the modem.
Control characters that do not form part of the frame are treated as a
normal characters. This usually results in the modem issuing an INV
indication.
HDLC Notes
Commands must be correctly framed to be accepted by the modem. The
address field must be FF, the control field must be 03 (hex) or 13 (hex) or
a bad FCS field or an abort is received.
If a succession of V.25bis indications are to be sent to your computer, the
poll bit (or final bit) will be set to zero for all but the last V.25bis
indication, to signify that more V.25bis indications follow.
Control characters that do not form part of the frame are treated as a
normal characters. This usually results in the modem issuing an INV
indication.
V.25bis Operations
V.25bis
Operations
pro16ref.pm6 6/14/96, 2:37 PM78