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Demand test descriptions and error codes - Avaya Support

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Table 451: Far-End Lightwave Transceiver Loopback Test #789 3 of 3<br />

Error<br />

Code<br />

Test<br />

Result<br />

DS1 Facilities Connectivity Test (#790)<br />

This <strong>test</strong> is destructive.<br />

DS1 Facilities Connectivity Test (#790)<br />

FAIL Far-end lightwave transceiver loopback failed. A problem exists between<br />

the DS1 converter A <strong>and</strong> the lightwave transceiver connected to the DS1<br />

converter B (see previous diagram).<br />

1. If there are facilities that are not digital-data compatible, busyout the<br />

facilities with busyout ds1-facility.<br />

2. Enter display <strong>error</strong>s <strong>and</strong> follow the associated repair<br />

procedures for any on-board DS1C-BD (DS1 Converter Circuit<br />

Pack) <strong>error</strong>s on this DS1 converter circuit pack <strong>and</strong> the DS1<br />

converter circuit pack at the other end of the DS1 converter<br />

complex.<br />

3. Enter display <strong>error</strong>s <strong>and</strong> follow the associated repair<br />

procedures for any DS1-FAC (DS1 Facility) <strong>error</strong>s.<br />

4. Check the DS1 Converter Measurements Report to see if there are<br />

facilities with excessive <strong>error</strong>s. Enter list measurements<br />

ds1-facility summary. If there are facilities with excessive<br />

<strong>error</strong>s, run the Far-End Internal Loopback <strong>test</strong> (#797) on those<br />

facilities, <strong>and</strong> follow the repair procedures described for the Far-End<br />

Internal Loopback Test (#797).<br />

5. If the <strong>test</strong> still fails, replace the lightwave transceiver device that is<br />

connected to the DS1 converter circuit pack at the other end of the<br />

DS1 converter complex.<br />

6. If the <strong>test</strong> still fails, replace the DS1 converter circuit pack at the<br />

other end of the DS1 converter complex.<br />

7. If the <strong>test</strong> still fails, replace this DS1 converter circuit pack.<br />

0 NO<br />

BOARD<br />

Description / Recommendation<br />

PASS Transmission through the path of the loopback is successful.<br />

See NO BOARD for the repair procedures.<br />

3 of 3<br />

Issue 5 May 2009 1507

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