BCM50 Hardware & Installation
26 NN40011-002 Issue 1.2 BCM50 Rls 6.0
Basic Rate Interface Module
The Basic Rate Interface media bay module (BRIM) connects a maximum of
four BRI ISDN loops to the BCM system.
The BRIM only recognizes the T-interface used in European networks. To use
the BRIM with the U-interface, typical in North American networks, you require
an external NT1 box to convert the U-interface to a T-interface.
Each BRI ISDN connected loop adds two telephone lines to the BCM system.
Each BRIM can add a maximum of eight lines to the BCM system through the
four RJ-48C jacks on the faceplate.
Global Analog Trunk Module
The global analog trunk media bay module (GATM) provides an interface for
four or eight analog public switched telephone network (PSTN) lines. The
GATM supports both pulse and tone dialing, as well as caller ID and
disconnect supervision in selected markets throughout the world.
The GATM uses an RJ-21 connector as the trunk interface.
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