Demand test descriptions and error codes - Avaya Support
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Maintenance <strong>Dem<strong>and</strong></strong> Tests<br />

Table 337: Loss of Signal Alarm Inquiry Test (#138) 5 of 7<br />

Error<br />

Code<br />

Test<br />

Result<br />

Description / Recommendation<br />

1311 FAIL The Integrated CSU (I-CSU) Module Equipment Loopback (ELB) <strong>test</strong><br />

(#1210) failed. This <strong>test</strong> is executed by the I-CSU during I-CSU power-up/<br />

reset (i.e., the DS1/UDS1 board is physically inserted <strong>and</strong> a CSU module<br />

or a Sync Splitter is already installed) or when the CSU module/Sync<br />

Splitter is plugged on to an already initialized DS1/UDS1 board. The ELB<br />

<strong>test</strong> is also executed as part of <strong>test</strong> ds1-loop location ds1/<br />

csu-loopback-<strong>test</strong>s for the CSU module <strong>and</strong> T1 sync splitter.<br />

1. Enter <strong>test</strong> ds1-loop location ds1/csu-loopback-<strong>test</strong>s<br />

2. If the ELB <strong>test</strong> continues to fail, then either the DS1/UDS1 board, the<br />

CSU module/T1 sync splitter, or the I/O cable between the<br />

backplane <strong>and</strong> the CSU module/T1 sync splitter (or any combination<br />

thereof) has failed. Attempt to isolate the problem to one of these<br />

areas.<br />

3. Replace the CSU module/T1 sync splitter <strong>and</strong> run <strong>test</strong> ds1-loop<br />

location ds1/csu-loopback-<strong>test</strong>s again.<br />

4. If the ELB <strong>test</strong> continues to fail, replace the DS1/UDS1 board, <strong>and</strong><br />

run <strong>test</strong> ds1-loop location ds1/csu-loopback-<strong>test</strong>s<br />

again.<br />

5. If the ELB <strong>test</strong> continues to fail, the problem could be in the I/O cable<br />

between the backplane <strong>and</strong> the CSU module/T1 sync splitter.<br />

1312 FAIL The Integrated CSU (I-CSU) Module Repeater Loopback (RLB) <strong>test</strong><br />

(#1211) failed. This <strong>test</strong> is executed during I-CSU/Sync Splitter power-up/<br />

reset (i.e., the DS1/UDS1 board is physically inserted <strong>and</strong> the CSU<br />

module or the Sync Splitter is already installed) or when the CSU module/<br />

Sync Splitter is plugged on to an already initialized DS1/UDS1 board. The<br />

RLB <strong>test</strong> is also executed as part of <strong>test</strong> ds1-loop location ds1/<br />

csu-loopback-<strong>test</strong>s for the CSU module/T1 sync splitter.<br />

1. Enter <strong>test</strong> ds1-loop location ds1/csu-loopback-<strong>test</strong>s<br />

2. If the RLB <strong>test</strong> continues to fail, then replace the CSU module/T1<br />

sync splitter.<br />

3. Run this <strong>test</strong> again.<br />

1242 Maintenance Alarms for Communication Manager, Media Gateways <strong>and</strong> Servers<br />

5 of 7

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