Install Guide

Ensemble Communications Inc.
5-4 Operator’s Guide to the Fiberless System
Power Connection
Procedure
Note For power runs up to 50 feet, use #8 gauge (AWG) wire. For longer runs,
select the proper wire size to avoid excessive voltage drop. Make
connections to the base station using crimp type lugs.
Use the provided #10 screw to route the -48 VDC power and return
conductors to the Power Distribution Frame (PDF) on the power
and ground barrier strip for each conductor.
1. Remove the plastic protective covering from the power termi-
nal blocks.
2. Connect the -48 VDC conductors for each of the buses (A and
B) to separate dedicated 50-amp circuit breakers.
3. Connect the return conductors to the appropriate return buses
on the PDF.
4. After all power connections have been made and with all inter-
face cards unseated in the chassis, turn on the circuit breakers.
5. Using a digital voltmeter (DVM), verify that proper polarity
and voltage are present on both buses at the base station power
block.
6. Install fan tray and verify that fans are on.
7. After all connections have been verified, return the circuit
breakers to the off position.
8. Install the provided plastic protective cover over the power
and ground terminal block.
.