Serial Devices; Dial Serial Device Requirements - 3Com 3C8S5007 - SuperStack II PathBuilder S500 Switch User Manual

A
Dial Serial Device
Requirements
S
ERIAL DEVICES
Serial devices using the V.25bis command set over a PathBuilder switch
must support:
High-level data link control (HDLC) with NRZ.
CRN command.
8 (data bits), N (no parity), and 1 (stop bit) if a parity option is
provided.
V.25bis addressed mode.
Synchronous data and DTE connection. The PathBuilder switch does
not support an asynchronous serial connection.
Serial devices using the DTR command set over a PathBuilder switch
RS-232 interface must support:
DTR State to Dial: HIGH.
DTR State Hangup: Low.
DTR State Answer: HIGH.
Synch Data Xmt (synchronous data and DTE connection). The
PathBuilder switch does not support an asynchronous serial
connection.
Auto Answer mode.
User-stored phone number.