Ds1/T1 Cpe Loopback Jack; Installing A Loopback Jack; Installing A Loopback Jack With A Smart Jack - Avaya g700 Installation And Upgrades

Telephones and adjunct systems

DS1/T1 CPE loopback jack

This section provides information on how to install and use a DS1 loopback jack to test the DS1
span between the Avaya Media Server or Gateway and the network interface point. The
loopback jack is required when DC power is at the interface to the integrated channel service
unit (ICSU).
Note:
Do not remove the loopback jack after installation. It should always be available
Note:
for remote tests of the DS1 span.
Note:
For G700 or G350 Media Gateway systems, the channel service unit (CSU) is
Note:
integrated within the MM710 Media Module. This means that there is no need for
a separate external device. The loopback jack isolates the MM710 internal CSU
from the DC power and properly loops the DC span power.
This section covers:

Installing a loopback jack

Administering a loopback jack
Testing a loopback jack with a smart jack
Testing a loopback jack without a smart jack
Configurations using fiber multiplexers
Installing a loopback jack
You can use one of two installation options:

Installing a loopback jack with a smart jack

●
Installing a loopback jack without a smart jack
●
Installing a loopback jack with a smart jack
Use one of the following installation methods:
Install the loopback jack at the interface to the smart jack, if possible.
●
This position provides maximum coverage of CPE wiring when remote loopback tests are
run.
If the smart jack is not accessible, install the loopback jack at the extended demarcation
●
point.
396 Installation and Upgrades for Avaya G700 Media Gateway and Avaya S8300 Media Server
on page 396
on page 398
on page 398
on page 407
on page 410
on page 396
on page 397