3Com NETBuilder SI, SuperStack II manual Reset Button, Serial Device, Requirements

Reset Button 21

Reset Button	Pressing the Reset button resets the bridge/router. The reset button on
	the model 4xx bridge/router is on the front panel as shown in Figure 2.
	The reset button on the model 5xx bridge/router is on the left side of the
	bridge/router (when facing the front panel) as shown in Figure 3.
	Figure 3 Reset Switch (Model 5xx)
		Left side of unit

		Reset switch
Serial Device	Serial devices using the V.25bis command set over a SuperStack II
Requirements	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.