Lucent Technologies 5 manual NI-BRI Module, Summary

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MERLIN LEGEND Communications System Release 5.0

Issue 1

System Manager’s Guide 555-650-118

June 1997

 

 

3System Components

Control Unit

Page 3-10

800 NI-BRI Module

Available for Release 4.0 and later systems, this module supplies eight line/trunk jacks for connecting central office facilities that use the standard National ISDN 1 (Integrated Services Digital Network 1) protocol and the BRI (Basic Rate Interface) access arrangement (this combination is abbreviated NI-1 BRI). These digital facilities are available from COs in many areas.

Each facility actually includes two “virtual” lines, two B-channels for carrying voice and data, as well as a third D-channel for handling signaling and maintenance.

NOTE:

The 800 NI-BRI module is not available in Behind Switch mode.

Summary

3

Figure 3–3 shows the modules; Table 3–1 lists the number of available jacks for each module and presents a brief description of the equipment you can connect to it.

NOTE:

Modules labeled “GS/LS” can accept ground-start trunks, loop-start trunks, or a combination of both types of trunks.

Page 77
Image 77
Lucent Technologies 5 manual NI-BRI Module, Summary