Technical information

Troubleshooting and Repair
119
Troubleshooting
Flowchart 2: Continued
C
No
Are any of the
peripheral control
complex card numeric
displays flashing EE
followed by an error
code?
Is a system
alarm present?
Yes
No
Flowchart 3:
An alarm is present
Troubleshooting
complete.
Yes
Check for bent pins on the peripheral
switch controller card connector.
Check for a faulty Fiber Interface
Module (FIM).
Ensure ACTIVITY FREEZE is on.
Reload the peripheral switch controller
card by using the LOAD
CONTROLLERS command. If the fault
persists, reload the software into the
main controller card. If the fault persists,
replace the peripheral switch controller
card. See Replacing a Peripheral
Switch Controller (PSC) Card on page
148.