Installation Manual

Table Of Contents
Release 3.3, Revision A 1/99
42 WAVEXpress/BTS Installation and Commissioning Guide
For -48 DC operation
Step 1
Make sure that the circuit breaker, located at the bottom of the power supply module is in the 0 (OFF)
position.
Step 2
Route the power cable through the feedthrough on the antenna bracket to the power supply module.
Step 3
A clamping type barrier terminal is provided for -48V DC power input. Lift the plastic cover of the termi-
nal in order to expose three lugs, labeled (-), (+), GND.
Step 4
Making sure that the DC power is off, strip about 1/4” of the insulation off the ends of the DC wire. A No.
12 AWG stranded copper wire is recommended.
Step 5
Slide the exposed ends into the proper terminal, and screw down the lug until each wire is tightly
clamped.
Step 6
Flip the plastic cover back into position, in order to cover the exposed terminals. Failure to do so could
result in electrical shock.
The power main must be a Safe Extra-Low Voltage (SELV), -48V supply as defined
in IEC950 and EN60950.
Figure 3-10:
DC power supply - terminal strip cover open
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