Nortel Networks 400 4.0 User Manual
116
Chapter 8 Installing a media bay module (MBM)
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Determining MBM DIP switch settings
Assign DIP switch settings before you install an MBM. The DIP switches are located on the back
or underside of the MBM.
or underside of the MBM.
To determine MBM DIP switch settings
1
(trunk MBMs) and
(station MBMs) to determine a switch setting for all
MBMs except the FEM.
shows an example of the table and how to do
the following steps.
2
On
or
circle the MBM names.
3
Number the order in which you want to assign the MBMs.
4
Determine the number of DS30s each MBM requires. For some station MBMs this depends on
whether you choose to set the MBM to single or double density.
whether you choose to set the MBM to single or double density.
5
Circle the DS30 bus and offset numbers.
6
Follow the DS30 bus and offset numbers to the far right column where the switch settings are
indicated. Circle the setting for each MBM.
indicated. Circle the setting for each MBM.
Note: Fiber expansion module (FEM) switches
The switches on the fiber expansion module (FEM) do not work in the same way as those
of the trunk or station MBMs. On the FEM, the switches turn the fiber ports on and off.
For information about setting the switches on an FEM, refer to
of the trunk or station MBMs. On the FEM, the switches turn the fiber ports on and off.
For information about setting the switches on an FEM, refer to
.
Note: If you must assign specific line or extension numbers to an MBM, refer to the
individual switch tables in
individual switch tables in
for line
and DN listings.