Unique Broadband Systems Ltd. DRU1KW 사용자 설명서
Chapter
6
Maintenance
6.5.1.2
Low Band Sub-system Shutdown
The Combined DRU LB sub-system should be shut down in the following sequence:
1. Using the LBE GUI, set SysOperatingMode to standby.
o
The LBE GUI Cpl1ForwardPwr reading should decrease by 3 dB.
o
The LB HPA LED will be illuminated blue.
o
The TRMS LB Status LED will be extinguished.
2. Switch OFF the LB HPA PSU circuit breaker (CB1, CB2, CB3 and CB4), located on the
LB cabinet PDU.
o
The Norm LED’s on the LB HPA PSU’s (PS 1, PS2, PS3 and PS4) will be
extinguished.
o
The front panel LED’s on the LB HPA’s (HPA 1, HPA 2, HPA 3 and HPA 4) will flash
green and red alternately.
3. Switch OFF the TSC-L 5A circuit breaker, located on the BMS front panel.
o
The LED’s on the LB HPA’s will be extinguished.
4. Switch OFF the LBE 25A circuit breaker, located on the BMS front panel.
o
The LBE Power LED will be extinguished and the internal fan will turn off.
5. Switch OFF FAN 1 / FAN 2 (CB 9) and the FAN 3 / FAN 4 (CB10) circuit breakers,
located on the LB cabinet PDU.
o
The HPA compartment fans will turn off (fans cannot be heard) and that the PDU
FAN 1 and 2 LEDs will be extinguished.
FAN 1 and 2 LEDs will be extinguished.
SX03-20000-01-M01 6-6