With A Smart Jack; Without A Smart Jack - Avaya MCC1 Installation And Upgrades

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 319.
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 319.
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.
SI Installation and Upgrades
June 2004
315.
316.
Adjuncts and Peripherals
DS1/T1 CPE loopback jack
Figure 315 through
Figure 318 and Figure 319.
Figure 315 through
817