46
Hardware Installation
Module Removal Procedure
Read through the following installation steps and notes to ensure that you understand them
before installing an MV-831.
Module Removal Procedure
Removal procedure:
1 Start at the rear of the router.
To empty
relevant
slots of front modules or rear panels, ready for the MV-831 modules:
2 Locate the pair(s) of rear modules to remove.
on page 44 indicates which modules need to be removed.
3 Disconnect all cables connected to rear panel connectors on rear slots to be emptied.
Rear module removal:
4 Remove all rear modules for slots that need to be emptied.
Unscrew rear panel securing screws on each module (two or four screws, depending on
the module being removed) and then remove the module.
Note:
Fan doors
The fan door assemblies should be returned to the closed position as
soon as possible after opening. This ensures correct ventilation and
operation of the router frame.
In practice:
• Maximum time that a fan door may be left open will depend on a
number of factors, such as: ambient temperature, router frame
loading, crosspoint routing, etc.
• To ensure correct operation under all conditions, the fan assemblies
should be left open for no more than 2 minutes at a time.
• Avoid repeated opening of fan doors. Leave a fan door closed for at
least 5 minutes after it has been open for 2 minutes; this restores
correct ventilation.
• Take care not to trap any cables when opening and closing the fan
doors.
To minimize the time that a router frame’s outer front doors and fan
doors are open, ensure that you understand which modules need to be
changed and where they are located: Refer to your completed
CAUTION
Electrostatic Damage:
Static precautions must be observed when handling, inserting or
removing modules.
Note:
Rear module removal requires:
• A Pozidriv screwdriver suitable for pan head, M3 x 6 mm,
zinc plated screws.
Note:
An MV-831 rear panel has handles to assist removal (see
page 38).
