Replacing The Fan Tray Module - AudioCodes Mediant 3000 Hardware Installation Manual

6.5

Replacing the Fan Tray Module

The procedure below describes how to replace the Fan Tray module.
Warnings:
•
The chassis cannot operate without a Fan Tray module for more than 30 seconds;
otherwise, irreversible damage may be caused to the chassis components due to
overheating.
•
The Fan Tray module replacement procedure (extraction of the faulty module and
then insertion of the replacement module) must be done within 30 seconds. To
ensure that the procedure is performed within this time, it is recommended that you
have the replacement Fan Tray module ready for insertion before removing the faulty
Fan Tray module.
•
When removing the Fan Tray module while the power is on (or after the chassis has
recently been powered off), the fan blades may still be rotating at high speed.
Therefore, to avoid bodily harm, make sure that you don't touch the fan blades.

To replace a faulty Fan Tray module:
1. Remove the faulty Fan Tray module:
a. Using a Philips screwdriver, unfasten the two screws on the top left-hand corner
and the bottom left-hand corner of the front panel of the Fan Tray module.
b. Using the built-in handle, pull the Fan Tray module out of the chassis.
2. Insert the replacement Fan Tray module:
a. Insert the Fan Tray module into the chassis slot until the front panel is flush with
the chassis' front panel.
b. Verify that the Fan Tray module is functioning correctly by checking that the
software has not reported any fan failure. You can also check the Fan Tray
module itself, by removing the Fan Tray module and verifying that all the fans are
spinning, and then re-inserting the Fan Tray module.
c. Using a Philips screwdriver, fasten the screws on both the upper and lower ends
of the Fan Tray module.
Hardware Installation Manual 82
Mediant 3000
Document #: LTRT-94720