Nortel Networks BCM1000 Benutzerhandbuch
85
Installation and Maintenance Guide
Chapter 7
Setting media bay module DIP switches
Setting media bay module DIP switches
Before you install a media bay module, assign switch settings for the media bay module. These
settings determine which line numbers (trunks) or DNs (extensions) the equipment connected to
the module will have access to. The DIP switches are located on the back or underside of the
media bay module.
settings determine which line numbers (trunks) or DNs (extensions) the equipment connected to
the module will have access to. The DIP switches are located on the back or underside of the
media bay module.
Start from the list of modules you chose in
.
After you determine which DS30 blocks you want to use, and how much DS30 bus capacity each
module requires, you determine the location of the modules on the DS30 array. From that
information, you choose switch settings for each module. These settings are then set on the module
DIP switches.
module requires, you determine the location of the modules on the DS30 array. From that
information, you choose switch settings for each module. These settings are then set on the module
DIP switches.
This chapter describes the latter process of positioning your modules in the DS30 hierarchy and
determining and setting the DIP switch settings on the module.
determining and setting the DIP switch settings on the module.
Rules for assigning DS30 bus blocks and offsets
Media bay modules are assigned to DS30 bus blocks in a specific hierarchical manner. This
section describes the preferred order of positioning for each type of module.
section describes the preferred order of positioning for each type of module.
Notes about assigning modules
The following are some general notes about assigning modules:
•
If you chose a 3/5 DS30 split for your system, DS30 07 cannot be used by any module. For
modules that require two DS30 buses, this means that you cannot set the DIP switches to DS30
06 for those modules, because the second level of lines would fall into 07, and would not be
accessible. Refer to
modules that require two DS30 buses, this means that you cannot set the DIP switches to DS30
06 for those modules, because the second level of lines would fall into 07, and would not be
accessible. Refer to
.
Refer to
for more information about 2/6 and 3/5
DS30 splits.
•
DSM 32 modules require two DS30 bus numbers. When you assign the first DS30 bus number
to a DSM 32, the module automatically adds the next DS30 bus. For example, if you assign
DS30 02 to a DSM 32, it uses DS30 02 and 03. However, you cannot choose DS30 07 for the
to a DSM 32, the module automatically adds the next DS30 bus. For example, if you assign
DS30 02 to a DSM 32, it uses DS30 02 and 03. However, you cannot choose DS30 07 for the
Note:
Fiber Expansion Module (FEM) switches
The switches on the fiber expansion module (FEM) do not work in the same way as those
on the other media bay modules. On the FEM, the switches turn the fiber ports on and off.
For information about setting the switches on an FEM, refer to
on the other media bay modules. On the FEM, the switches turn the fiber ports on and off.
For information about setting the switches on an FEM, refer to
.