Nortel Passport 15000, Hardware Installation And Maintenance, Page: 275 / 874

Chapter 17 Hardware procedures 275
Passport 15000, 20000 Hardware Installation, Maintenance, and Upgrade 5.2S2
Checking the connectivity between FPs and sparing panels
Check the connectivity between spared (redundant) electrical FPs and their
sparing panel to verify the panel has powered up and indicates the appropriate
operational status.
Prerequisites
• You must be familiar with “Safety considerations and best practices”
(page 53).
• Electrical FPs include DS1s, DS3s, E1s, and E3s.
• The FPs must be:
— fully cabled to the sparing panel
— powered up and loaded
— running traffic through the active connections
• A sparing panel receives power through each control port cable.
• When power initially reaches the sparing panel, the status LED of the
Main connections lights first. Depending on which FP is configured to be
the active one, the LED status on the sparing panel may change to
indicate the standby FP is active.
• When a sparing panel has connectors for monitoring the transmit signal
on any port of a specific FP, use your own testing equipment to verify the
transmission. The monitoring signal of the 12-port DS3 or E3 sparing
panel NTQS31 is 25 dB lower than the transmit signal so that the
transmission is insignificantly affected. Ports of the same number cannot
be monitored on different FPs at the same time.
Procedure steps
1 Coordinate with the software operator of the switch to ensure traffic is
running through the FPs that are connected to the sparing panel.
2 Have the software operator check for occurrences of any of these alarms
that are associated with spared electrical FPs:
• 7054 0100, indicating is not connected to a sparing panel
• 7054 0101, indicating an incorrect connection or a configuration
(provisioning) error, for example, the FP is connected to the wrong
sparing panel