Cisco Systems VG350 specifications FXO Fail-Over Bypass Ports, Fxo, BYPASS-0, BYPASS-1

Chapter 2 Cisco Double-Wide High Density Analog Service Modules

FXO Fail-Over Bypass Ports

FXO Fail-Over Bypass Ports

Bypass/Failover Port, also called Fail-over Trunk Bypass, provides a way to use designated analog phone ports to make phone calls through the Public Switch Telephone Network (PSTN) during power-outage or power savings circumstances.

Table 2-2shows the RJ-11 connector assignment.

	Table 2-2	RJ-11 Connector Assignment
Faceplate
Label	IN (RJ-11)	OUT (RJ-11)	Power ON	Power OFF
FXO	To PSTN	To external	PSTN to external FXO	PSTN to RJ-21
BYPASS-0		FXO Interface	Interface	connector Port 46
		(optional)	FXS Port 46 to RJ-21	No connection to
			connector	external FXO I/F
FXO	To PSTN	To external	PSTN to external FXO	PSTN to RJ-21
BYPASS-1		FXO Interface	Interface	connector Port 47
		(optional)	FXS Port 47 to RJ-21	No connection to
			connector	external FXO I/F

Cisco VG350 Voice Gateway Hardware Installation Guide

OL-25970-01 2-5