GSM-204-423
Configuring battery backup to supply two BTS cabinets
31st Oct 01
Inst. 5–14
Installation & Configuration: Horizon
macro outdoor
CONTROLLED INTRODUCTION
68P02902W03-A
Removing the
parallelling
links
To remove the parallelling links refer to Figure 5-8 and:
1.
Ensure the power distribution box is disconnected from the –48 V dc
supply and the batteries.
2.
Remove the four M6 nuts, plain washers and star washers, securing the
cables from the Anderson connectors to the circuit breakers, and retain.
3.
Note the location and insulation colour of the four ring terminals connected
to the external alarm interface board, and remove from the circuit breaker
studs.
4.
Remove the four terminals connecting the Anderson connectors to the
circuit breakers, noting the position of each terminal.
5.
Remove the 0 volt link and the –48 volt link from the circuit breakers.
6.
Refit the black 0 volt and the blue –48 volt cable terminals to the outer
stud on each circuit breaker, in the position previously noted in step 4.
7.
Refit the four ring terminals from the external alarms interface board to the
circuit breakers, in the locations noted in step 3.
8.
Ensure that the insulation colour of all refitted cables is correctly matched.
9.
Refit the four M6 star washers, plain washers and nuts, and tighten to the
correct torque, (see Site requirements and considerations in Chapter 2
of this category).
The power distribution box can now be refitted.