Nortel Networks BCM50 - Manual (Page 43)

Chapter 2 Introducing the BCM50 hardware 43
Installation and Maintenance Guide
Figure 12 GATM faceplate
Analog direct inward dialing media bay module
The analog direct inward dialing (ADID) MBM provides an interface for four or eight analog
public switched telephone network (PSTN) lines. The ADID MBM supports both pulse and tone
dialing as well as disconnect supervision, and direct inward dialing call progress signaling as
described in standard TIA-464C.
The ADID MBM uses an RJ-21 connector for trunk connections. The figure ADID faceplate on
page 43 shows the ADID faceplate LEDs and connectors. The ADID is available either in
four-port (ADID4) or eight-port (ADID8) configurations.
Figure 13 ADID faceplate
Station media bay modules
Station MBMs connect telephones and analog telecommunication devices to the BCM50 system.
The table Station MBMs on page 43 lists the available station media bay modules.
Table 4 Station MBMs (Sheet 1 of 2)
Module type What it does Special Notes
DSM16+/ DSM32+
(see Digital station media bay module on
page 44 )
Connects a maximum of 16 (DSM16+) or
32 (DSM32+) digital telephones to the
BCM50 system. —
4x16
Combination of a CTM4 and a DSM16
(see 4x16 media bay module on page 44)
Connects a maximum of four analog
public switched telephone lines to the
BCM50 system.
Also connects a maximum of 16 digital
telephones to the BCM50 system.
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