To Select Station Mbms; Selecting Station Mbms - Nortel BCM200 Installation And Maintenance Manual

108 Chapter 8 Installing a media bay module (MBM)

Selecting station MBMs

The number and type of telephones and related equipment you have determines which station
MBMs you require.
Note: If you are adding any extensions in the near future, include them in your
calculations.

To select station MBMs

1
In Table 26, record the number of each type of extension you have.
2
Use the number of extensions and the number of extensions per MBM to determine how many
MBMs you need.
Table 26 Determine station MBMs requirements
Type of extension
Digital extensions
Digital extensions
Digital extensions
Analog extensions
Analog extensions
Specialty modules
Digital extensions are digital or IP telephones. You do not need to include IP telephones when calculating the number
of required DSM MBMs. For a list of the telephones that can be used with the BCM system, refer to
adapters" on page 73.
Analog extensions include single-line telephones, fax machines, and modems.
For example, in North America:
• If you require 12 digital extensions, you need 1 DSM16/DSM16+
• If you require 24 digital extensions, you need 1 DSM32/DSM32+
Note: If you require only a few analog extensions, you can use an ATA 2 to connect these
devices to your DSM16(+), DSM32(+), or the DSM connector on a 4x16 MBM. Each
analog extension requires an ATA 2.
N0060612 N0060612
Number of
extensions Type of MBM
DSM16/DSM16+
DSM32/DSM32+
4x16
ASM8
GASM8
Number of extensions
per MBM
16
32
16
8
8
Number of MBMs
required
_____ DSM16
_____ DSM32
_____ DSM16
_____ ASM8
_____ GASM8
"Telephones and