Installing the SmartNode
32
SmartNode 4660 & 4670 User Manual
3 • SmartNode Installation
•
Option 2:
Loop a wire tie around the power wire coming out of the end of the ferrite clamp. Repeat the
process with the other wire tie on the other end of the clamp. Do not trim the end off of the wire ties.
Figure 8. Ferrite clamp installation
External S-Bus power supply
Do not use an external power supply for ISDN terminals connected to the SmartNode. The SmartNode sup-
plies S-Bus line power to ISDN terminals connected to the BRI port, so external power supplies are not
required for the ISDN terminals.
Option 1
Option 2
Two untrimmed
wire ties
Ferrite clamp
Ferrite clamp
Two trimmed
wire ties