Avaya Definity SI, Руководство по обслуживанию, Страница: 238 / 2968

Reliability Systems: A Maintenance Aid
555-233-123 6-34 Issue 4 May 2002
Procedure for Installing/Replacing
the Inter-Cabinet Cable
The Inter-Cabinet Cables (ICCs) are physically located on the back of the cabinet
behind the panels and between the A control cabinet and the B control cabinet.
The panels must first be opened to see the ICCs.
!
WARNING:
Damage can be done to the Inter-Cabinet Cables during removal or
installation. Follow the guidelines listed below to minimize the possibility of
damage to the cables and later need of replacement.
To remove ICC-A, ICC-B, or ICC-C:
1. Remove power from the system. Refer to the ‘‘Removing Power’’ section in
Chapter 5, ‘‘Routine Maintenance Procedures’’ .
2. Grasp the cable connector, not the cable itself. Attempting to remove a
cable by pulling on the cable itself can damage the cable-to-connector
interface.
3. Pull the cable straight out. Pulling the connector from the backplane at an
angle can bend the backplane pins.
4. Push the ICC connector onto the insulated sleeves.
!
CAUTION:
The pins should not show through the back of this connector. If they
do, they ICC may be shorted out.
Check the connector-cable-connector integrity with a continuity test.
To re-install ICC-A, ICC-B, or ICC-C:
1. Verify that the backplane pins are not bent. If any are bent, they must be
straightened or replaced before continuing.
2. Align the ICC connector with the backplane pins and push partially into
place.
3. Use a dental mirror and light to view the back sides of the connector.
Determine that all 50 backplane pins are seated correctly in the ICC
connector.
4. Push the ICC connectors fully onto the insulated sleeves. The pins should
not show through the back of the connectors. If the pins show through, the
ICC may be shorted out.