Serial Device Requirements - 3Com SuperStack II User Manual

Serial Device
Requirements
Figure 5 Reset Switch (Model 5xx)
Left side of unit
Serial devices using the V.25bis command set over a SuperStack II
bridge/router 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 SuperStack II NETBuilder
bridge/router does not support an asynchronous serial connection.
Serial devices using the DTR command set over a SuperStack II
bridge/router 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
SuperStack II NETBuilder bridge/router does not support an
asynchronous serial connection.
Auto Answer mode.
User-stored phone number.

Serial Device Requirements

Reset switch
33