Cisco ONS 15454 SDH Specifications Page 70

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Cisco ONS 15454 SDH Troubleshooting and Maintenance Guide, R3.3
May 2002
Chapter 1 Alarm Troubleshooting
Alarm Procedures
Step 2 If two nodes have an identical node ID number, change the node ID number of one node:
a. Log into a node that has an identical node ID number.
b. Click the Provisioning > Ring tabs.
c. Change the number in the Node ID field to a unique number between 0 and 31.
d. Click Apply.
1.5.55 PWR-A
Major, Service-affecting
The NE power failure at connector A alarm applies to the NE rack. It is raised when there is no power
supplied to the main power connector. This alarm can be raised if power is connected to the backup
power connector (connector B) but not to connector A, since power must be applied to both supplies.
Warning
Hazardous energy levels available at the power source and power connection. Do not bridge across
battery terminals or bridge battery terminal to ground/ metal objects will heat up and can cause
serious burns or weld the metal objects to the terminals.
Procedure: Clear the PWR-A Alarm
Step 1 Check whether there is a power connection between the power source and power connector A.
Step 2 Check and reseat, if necessary, the connections between the source and the connector A.
Step 3 If the alarm cannot be cleared, check continuity of the power connection with a multimeter.
Step 4 If the alarm cannot be cleared, check source power output with a multimeter.
1.5.56 PWR-B
Major, Service-affecting
The NE power failure at connector B alarm applies to the NE rack. It is raised when there is no power
supplied to the backup power connector. This alarm can be raised if power is connected to the main
power connector (connector A) but not to connector B, since power must be applied to both supplies.
Warning
Hazardous energy level available at the power source and power connection. Do not bridge across
battery terminals or bridge battery terminal to ground. Metal objects will heat up and can cause
serious burns or weld the metal object to the terminals.
Procedure: Clear the PWR-B Alarm
Step 1 Check whether there is a power connection between the power source and power connector B.
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