Avaya BCM50 Installation Manual Page 45

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Chapter 2 Introducing the BCM50 hardware 45
Installation and Maintenance Guide
Trunk media bay modules
Trunk media bay modules connect telecommunications lines to the BCM50 system.
The table Trunk MBMs on page 45 lists the types of trunk media bay modules that are available
for the BCM50 system.
Digital trunk media bay module
The digital trunk media bay module (DTM) connects to a standard digital PSTN T1 or E1 carrier:
On North American BCM50 systems, the DTM connects a T1 (24 channel) or PRI (23
channel) circuit to the BCM50. This PRI interface supports the NI-2 and MCDN protocol
variants.
On International BCM50 systems, the DTM connects a 30 channel PRI, DASS2, or DPNSS
circuit to the BCM50. This PRI interface supports the ETSI Euro, ETSI QSIG, and MCDN
protocol variants.
The front bezel of the DTM has an RJ-48C connector that connects the DTM to the service
provider connection point. The faceplate also has a set of monitor jacks you can use to monitor the
span.
Six additional LEDs are on the front of the DTM. For information about these additional LEDs,
see DTM LEDs on page 67.
The figure DTM faceplate on page 46 shows the DTM module interfaces.
Table 3 Trunk MBMs
Module type Function Special notes
DTM
(see Digital trunk media bay
module on page 45)
Connects digital public switched
telephone lines to the BCM50 3.0
system.
Can connect to T1 or PRI-E1/T1
interfaces.
BRIM
(see Basic rate interface media
bay module on page 46)
Connects a maximum of four ISDN BRI
S/T interfaces.
GATM4/GATM8
(see Global Analog Trunk Module
on page 46)
Connects either four (GATM4) or eight
(GATM8) analog public switched
telephone lines to the BCM50 3.0
system.
ADID4/ADID8
(see Analog direct inward dialing
media bay module on page 47)
Connects either four (ADID4) or eight
(ADID8) analog DID interfaces.
R2MFC Provides MFC-R2 connectivity over an
E1 trunk.
For details about the R2MFC MBM,
see the R2MFC Media Bay Module
Installation and Configuration Guide
(NN40010-300).
Note: See Market profile attributes on page 285 for supported regions.
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