Hardware Maintenance; Preventing Electrostatic Discharge Damage; Replacing The Fan Tray Module - AudioCodes MediaPack Series Hardware Installation Manual

CHAPTER 6 Hardware Maintenance
6

Hardware Maintenance

The device is designed as a modular chassis and allows you to order any module as a Field
Replacement Unit (FRU). This section describes the procedures for replacing modules.
Ensure that all unoccupied module chassis slots are covered with blank panels. This
allows optimal internal airflow pressure within the chassis.

Preventing Electrostatic Discharge Damage

Electrostatic discharge (ESD) due to improper handling of the device's modules and
components can cause irreversible damage to the equipment. Therefore, adhere to the
following guidelines for preventing ESD:
■
When handling modules, always wear a grounded ESD wrist strap or ankle strap at a
grounded work area to prevent ESD. Connect the equipment end of the strap to the
chassis' ground lug.
■
To prevent static electrical damage to the module, do not touch the electrical components
of the module. Instead, hold the module only on the edges where no electrical
components are located.
■
Make sure that the modules are securely installed in the chassis.
➢ To attach an ESD wrist strap to the chassis:
1. Attach the ESD wrist strap to your body (typically, the wrist) so that it is in direct contact
with your skin.
2. Attach the other end of the wrist strap (e.g., an alligator clip) to the grounding lug located
on the rear panel of the chassis. To attach a grounding lug, see
Protection

Replacing the Fan Tray Module

The following procedure describes how to replace the Fan Tray module.
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Avertissements:
on page 19 .
DO NOT operate the device without the Fan Tray module.
Before replacing a failed Fan Tray module, make sure that you have the
replacement Fan Tray module on hand so that you can replace the module
immediately.
When removing the Fan Tray module, the fan blades may still be rotating at high
speeds (even if you power off the device). Therefore, partially extract the module
from the chassis and then wait a few seconds to allow the fan blades to stop, prior
to extracting the module entirely from the chassis.
MP-1288 | Hardware Installation Manual
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Grounding and Surge