Nortel Networks BCM200/400 - Manual (Page 257)

Chapter 21 Replacing a media bay module 257
BCM200/400 4.0 Installation and Maintenance Guide
Chapter 21
Replacing a media bay module
This chapter describes the procedure for replacing a media bay module (MBM).
Figure 119 provides an overview of the process for replacing MBMs.
Figure 119 Overview of MBM replacement process
Refer to the following procedures to replace an MBM:
• “Removing an MBM” on page 258
• “Installing an MBM” on page 260
• “Returning the system to operation” on page 260
Warning: This section describes replacing an MBM with the same type of MBM. If you
want to replace an MBM with a different type of MBM, you must treat it as a new
installation. Ensure the new MBM does not overrun any lines already assigned to other
MBMs.
Disconnect cables
from the front of
the main unit and
expansion unit
Remove power
from both units
Remove front bezel
from expansion unit
Remove MBM
Set DIP switches
on new MBM
Install new MBM
Replace bezel
Restore power to
main unit and
expansion unit
Reconnect all
cables
Monitor LEDs for
power and status
Check the MBM
settings in
Element Manager
Replacing
an MBM