Testing The Ds1 Span From The Loopback Jack To The Smart Jack - Avaya MCC1 Installation And Upgrades

Adjuncts and Peripherals
DS1/T1 CPE loopback jack
Testing the DS1 span from the loopback jack
to the smart jack
Test the short length of customer premises wiring between the loopback jack and the smart jack (Section
2 in the following 3 figures) using a loopback that overlaps this section of the span.
•
Have the DS1 service provider at the CO end run a local ICSU line loopback test.
•
Have the DS1 service provider at the CO end run a local DS1 payload loopback test.
•
Run a far-end ICSU line loopback, using the procedure below.
NOTE:
This test cannot isolate the problem if there are problems in the wiring between the far-end
CO and the far-end ICSU. You must coordinate this test with the DS1 service provider.
1
From the management terminal, enter test ds1-loop location .
2
Examine the bit-error counts, as in
819."
3
Terminate the test. Enter test ds1-loop location end-loopback/span-test.
3
If the tests fails and the there were no problems
loopback jack
fiber multiplexer
with the service provider to isolate the fault.
Figure 315: Network interface at smart jack for a 120A2 (or later) ICSU
Figure notes
1 Span section 1
2 Span section 2
3 Span section 3
4 120A2 (or later) ICSU
5 RJ-48 to network interface (up to 1000 ft. [305 m])
822
or Testing the DS1 span from the smart jack to the network interface termination or
(MUX), there is a problem between the loopback jack to the smart jack. Work
Testing the integrity of data sent over the loop
Testing the DS1 span from the ICSU to the
6 Loopback jack
7 Network interface smart jack
8 Interface termination or fiber
multiplexer (MUX)
9 Central office
SI Installation and Upgrades
on page
June 2004