Nortel BCM 3.7, Manual

Page: 158 / 1004

158 Internally-driven channels
N0008589 3.3
Internally-driven channels
You cannot change headings for buses that are used for internal processing. This section describes
how these buses fit into the system.
Bus 01 and Bus 08 provide access to telephony operations for internal processing, applications,
and IP sets on the Business Communications Manager system. These two buses are commonly
referred to as virtual buses since they have no external physical connections.
Bus 01 has 32 virtual ports. Bus 08 has 28 virtual ports. Each of these ports has one media channel
associated with it. These channels are labeled as B1 on the configuration menu. When IP
telephones are assigned to the system, they will appear on these ports. The ports are allocated
sequentially as telephones are added.
Bus 08 can also be used for a virtual data module (NA only) when a Business Communications
Manager data service such as WAN service is activated. Refer to
“Configuring a data module” on
page 190 for further programming. Note that Bus 08 does not display when there is a WAN active
on the system.
By default, Bus 07 is used for a media bay module connection (2/6 channel split). However, if
your system was set to a 3/5 DS30 split, then Bus 07 becomes a virtual bus with 32 ports. The
headings under Bus 07 become invalid in this configuration. Refer to the
“Configuring the MSC
resources” on page 613 for further details.
Working with the modules
When you need to find out information about a module, you can determine the status of any of the
settings under the media bay modules headings. To correct a problem, or change a module setting,
you may need to enable or disable a port, a module, or an entire bus. This section provides the
procedures got:
• “Viewing Media Bay Module status” on page 159
• “Disabling/enabling a DS30 bus” on page 159
• “Disabling/enabling a single module” on page 159
• “Disabling/enabling a port channel setting” on page 160