Nortel Networks BCM50 - Manual (Page 44)

44 Chapter 2 Introducing the BCM50 hardware
NN40020-302
Digital station media bay module
The digital station media bay modules (DSM) support digital telephones on the BCM50 system.
This section describes the DSM16+ and DSM32+ media bay modules. See the figure
DSM
faceplate LEDs and connectors on page 44.
The digital station media bay modules have the following characteristics:
• DSM16+—supports 16 digital telephones through one RJ-21 connector.
• DSM 32+—supports 32 digital telephones through two RJ-21 connectors.
Figure 14 DSM faceplate LEDs and connectors
4x16 media bay module
The 4x16 MBM provides both analog trunk connections and digital telephone connections. This
MBM provides connections for four analog trunk lines and 16 digital telephones. Each of the four
analog trunk lines support Caller ID and disconnect supervision. You can use an analog telephony
device, such as a modem, fax, or telephone to share the trunk through the Aux port beside Line 1.
G4x16/G8x16
Combination of a GATM4/GATM8 and a
DSM16
(see G4x16 and G8x16 media bay
module on page 45)
Connects a maximum of four (G4x16) or
eight (G8x16) analog public switched
telephone lines to the BCM50 system.
Also connects a maximum of 16 digital
telephones to the BCM50 system.
—
ASM8
(see Analog station media bay modules
on page 45)
Connects a maximum of eight analog
devices to the BCM50 system. —
GASM
(see Analog station media bay modules
on page 45)
Connects a maximum of eight analog
devices to the BCM50 system.
This module provides the following
additional services: caller ID, pass
through, message waiting indication, and
disconnect supervision at the telephone.
This module downloads new firmware.
—
Note: See Market profile attributes on page 239 for supported regions.
Table 4 Station MBMs (Sheet 2 of 2)
Module type What it does Special Notes
DSM 32 DSM 16