Installing A Loopback Jack - Avaya CMC1 Installation Manual

Adding or Removing Hardware
Install DS1/T1 CPE loopback jack

Installing a loopback jack

You can install a loopback jack with or without a smart jack.
With a smart jack
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.
If there is no extended demarcation point, install the loopback jack directly at the network interface point
as shown in Figure
If there is an extended demarcation point and the smart jack is not accessible, install the loopback jack as
shown in Figure
If there is an extended demarcation point, but the smart jack is accessible, install the loopback jack as
shown in .
1
To install the loopback jack, simply disconnect the RJ-48 (8-wide) connector at the appropriate
interface point and connect the loopback jack in series with the DS1 span. See
Figure 114.
2
Plug the H600-383 cable from the ICSU into the female connector on the loopback jack.
3
Plug the male connector on the loopback jack cable into the network interface point.
NOTE:
Do not remove the loopback jack after installation. This is not a test tool and should
always be available to remotely test a DS1 span.
Without a smart jack
Install the loopback jack at the point where the cabling from the ICSU plugs into the dumb block. If there
is more than one dumb block, choose the one that is closest to the Interface Termination feed or the fiber
MUX to provide maximum coverage for loopback jack tests. Refer to
1
To install the loopback jack, simply disconnect the RJ-48 (8-wide) connector at the appropriate
interface point and connect the loopback jack in series with the DS1 span. See
Figure 114.
2
Plug the H600-383 cable from the ICSU, or from the MM710, into the female connector on the
loopback jack.
3
Plug the male connector on the loopback jack cable into the network interface point.
NOTE:
Do not remove the loopback jack after installation. This is not a test tool and should
always be available to remotely test a DS1 span.
302
110.
111.
Installation, Upgrades and Additions for Avaya CMC1 Media Gateways
Figure 110 through
Figure 113 and Figure 114.
Figure 110 through
June 2004