Installation Manual Part 1

PRELIMINARY
1-5
BWX 8415 Basestation Installation and Commissioning Guide
OL-19519-01
Chapter 1 Safety
Safety Information
c. The external DC power source, if current limited, shall have the limit set-point configured
higher than the BS Chassis breaker rating. (i.e. - If the power source is current limited to 10
amps and the BS circuit breaker is a 15 amp breaker, it will never trip because the power supply
is limiting the current to 10 amps.)
d. The external supply "Return" and the BS chassis shall be connected to a common Earth ground.
The BS Chassis has an external ground lug provided. The “+” terminal on the external power
supply is considered “Return or RTN” on a -48V system.
e. Do not remove protective earth connection before disconnecting the BS from the DC power
supply.