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Installation and wiring of telephones and power supplies
Issue 9.1 June 2006 361
Connecting an ISDN BRI station to an MM720 Media Module
Each ISDN port on the MM720 Media Module (see Media modules on page 85) supports up to
two ISDN BRI stations.
Note:
Note: The MM720 BRI Media Module cannot be administered to support both BRI
trunks and BRI stations at the same time. Also, the MM720 BRI Media Module
does not support combining both B-channels together to form a 128-kbps
channel. Finally, if the MM720 BRI Media Module is administered to support BRI
stations, it cannot be used as a clock synchronization source.
To connect one ISDN BRI station to one ISDN port:
1. Connect the station via a standard 8-pin BRI cable to one of the ISDN ports on an MM720
Media Module.
To connect two ISDN BRI stations to one ISDN port:
1. Connect each station to an RJ-45 splitter that provides two RJ-45 4-pair jacks, and one
RJ-45 male connector. See Figure 24
for the correct wiring for the splitter.
2. Connect the male connector of the splitter to one of the ISDN ports on an MM720 Media
Module.
Figure 24: RJ-45 splitter wiring for connecting two ISDN BRI stations to one ISDN port