Nortel Networks BSG12aw Manual De Usuario

Hardware overview 19

Installation

FXO port

All BSG units have one Foreign Exchange Office (FXO) port 

that connects to the telephone line coming from the 

Public Switched Telephone Network (PSTN) provider.

FXS ports (2)

All BSG units have two FXS ports to connect to the service 

provider using a single RJ45.
For the BSG8, the FXS2 line maintains a connection to FXO 

during a power outage for emergency dialing.
For the BSG12, the FXS1 line maintains a connection to FXO 

during a power outage for emergency dialing.

WAN interface

The BSG8ew and BSG12ew have one FE WAN interface.
The BSG12aw has an ADSL/ADSL2+ WAN interface.
The BSG12tw has two T1/E1 WAN interfaces.
If the BSG8ew/12ew/aw/tw loses the primary WAN connection 

(Ethernet, DSL, the or T1/E1), all calls from the analog FXS 

phone or any of the Session Initiation Protocol (SIP) phones 

associated with the SIP server via WAN connection can be 

routed to the FXO line, if configured in the backup dial plan. If 

an existing, non-emergency call is in progress on the FXO line 

during the incident emergency call attempt, the 

non-emergency call is terminated and the emergency call is 

propagated in its place.

Console

For BSG12ew/aw/tw only. An RJ45 console port for 

debugging purposes.

WiFi access point

All units use integrated IEEE802.11b/g WiFi access point.