director 2/64 service manual

2–70 director 2/64 service manual
Diagnostics
4
Inspect both fan modules at the rear of the director. Fan module LEDs can be
inspected through the hexagonal cooling vents of the radio frequency interference
(RFI) shield.
Does inspection of a director fan module indicate a failure? Indicators include:
• The amber LED is illuminated but not blinking (beaconing) on one or both fan
modules.
• One or more cooling fans are not rotating.
YES NO
↓ Go to step 6.
5
One or more cooling fans failed, and one or both fan modules must be removed and
replaced (RRP: Redundant Fan Module on page 4–23).
• If one or more fans in a module are operating, do not remove the fan module
unless the replacement is immediately available.
• If a multiple fan failure caused a thermal shutdown, power on the director after the
fan modules are replaced (Power-On Procedure on page 3–40).
Are the fan modules functioning?
NO YES
↓ The director is operational. Exit MAP.
Contact the next level of support. Exit MAP.
6
Inspect the faceplates of both CTP2 cards at the front of the director.
Is the amber LED at the top of a CTP2 card illuminated but not blinking (beaconing)?
YES NO
↓ Go to step 8.