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332 Installation, Upgrades and Additions for Avaya CMC1 Media Gateways
2. Examine the bit-error counts, as in Testing the integrity of data sent over the loop on
page 328."
3. Terminate the test. Enter test ds1-loop location end-loopback/span-test.
1. If the tests fails and the there were no problems Testing the DS1 span from the ICSU to the
loopback jack or Testing the DS1 span from the smart jack to the network interface
termination or fiber multiplexer (MUX), there is a problem between the loopback jack to the
smart jack. Work with the service provider to isolate the fault.
Figure 102: 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])
6. Loopback jack
7. Network interface smart jack
8. Interface termination or fiber multiplexer
(MUX)
9. Central office