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SN4554 Getting Started Guide
ISDN BRI
The ISDN port connects to ISDN terminals (PBXs) or an ISDN S-BUS using cables terminated with RJ-45
connectors. Use straight-though cables to connect to the NT port of your PBX, or
residential S-BUS.
RJ-45, male
ISDN BRI
3
4
5
6
Figure 15. Connecting an ISDN device
ISDN NT
or PBX
RJ-45, male
3
4
5
6
C • Cabling
47
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