Session Border Controllers
49
Mediant 4000B SBC
Hardware Installation Manual
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 installing or
replacing modules.
Warning:
Maintenance service of this device must be made only by qualified service
personnel.
Note:
Ensure that all unoccupied module chassis slots are covered with blank panels.
This allows optimal internal airflow pressure within the chassis.
6.1
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 ESD screw (described in the procedure below).
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 ESD spring screw
located on the rear panel of the chassis, as shown below.
Figure 6-1: Connecting ESD Wrist Strap to Chassis ESD Lug
Summary of Contents for Mediant 4000B SBC
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