SmartNode 4552 & 4562 Getting Started Guide
C • Cabling
ISDN BRI
The ISDN ports are connected to ISDN terminals (Phones, PBXs) or an ISDN NT using cables terminated
with RJ-45 connectors. Use straight-though cables to connect to the S/T port of your NT or phones/PBX.
Figure 16. Connecting an ISDN device
ISDN BRI
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