The Bri Card - Matrix Telecom SARVAM UMG System Manual

The BRI Card

The BRI card provides the interface to connect ETERNITY GENX with ISDN BRI Lines. The BRI lines may be from
a public ISDN exchange, a private ISDN exchange.
The BRI Card is available in the following configuration:
BRI Card of ETERNITY GENX
Card Name
ETERNITY GE Card BRI4
Connectors
The BRI card has 4 RJ45 Connectors. A separate cable is supplied for each connector.
ISDN BRI - Installation Scenarios
Most ISDN Service Providers also provide the NT1 device along with the BRI line. The BRI Line from the ISDN
central office is terminated on the NT1 on the Customer's Premises, as illustrated below.
ISDN
Network
U-Interface
(2-wire)
Where,
• U Interface = between the NT1 equipment and the ISDN central office.
• S/T Interface = between the ISDN user equipment, in this case, ETERNITY GENX and the Network
Interface Equipment (NT1).
The BRI line is terminated on the NT1. The S/T interface of the NT1 is connected to BRI port of the ETERNITY
GENX.
TE and NT Modes
In this illustration, the BRI line from ISDN Service Provider is directly connected to BRI port of the ETERNITY
GENX via the NT1 device. Here, the ETERNITY GENX is the Terminal Equipment, so the BRI Port must be
programmed to work in the TE mode.
When an ISDN Phone is to be connected to the BRI port of ETERNITY GENX, the BRI port must be programmed
to work in NT mode.
49
Configuration and Application
4-Port card to connect 4 ISDN BRI Lines or ISDN Compatible Devices
NT
Power
S/T Interface
Customer Premises
BRI Port
ETERNITY GENX
Matrix SARVAM UMG System Manual