Unique Broadband Systems Ltd. DRU1KW User Manual
Chapter
6
Maintenance
6.5.1
Combined DRU Shutdown
6.5.1.1
Full System Shutdown
A Combined DRU should be shut down in the following sequence:
1. Using the HBE GUI, set SysOperatingMode to standby.
o
The LBE GUI Cpl1ForwardPwr reading will decrease by 3 dBm (assuming both HB
and LB sub-systems are operating with equal output power levels).
o
The HB HPA LED will be illuminated blue.
o
The LNA LED will be extinguished.
o
The TRMS HB Status LED will be extinguished.
2. Using the LBE GUI, set SysOperatingMode to standby.
o
The LBE GUI Cpl1ForwardPwr reading will be 0 dBm.
o
The LB HPA LED will be illuminated blue.
o
The TRMS LB Status LED will be extinguished.
3. Switch OFF the HB HPA PSU circuit breakers (CB1, CB2, CB3 and CB4), located on the
HB cabinet PDU.
o
The Norm LED’s on the HB HPA PSU’s (PS 1, PS2, PS3 and PS4) will be
extinguished.
extinguished.
o
The front panel LED’s on the HB HPA’s (HPA 1, HPA 2, HPA 3 and HPA 4) will flash
green and red alternately.
green and red alternately.
4. 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.
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.
green and red alternately.
5. Switch OFF the SPARE 2.5A circuit breaker, located on the BMS front panel.
o
The BMS alarm LEDs will be illuminated red.
6. Switch OFF the TSC-H 5A circuit breaker, located on the BMS front panel.
o
The LED’s on the HB HPA’s will be extinguished.
7. 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.
8. Switch OFF the HBE 10A circuit breaker, located on the BMS front panel.
o
The HBE Power LED will be extinguished and the internal fan will turn off.
9. 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.
10. Switch OFF FAN 1 / FAN 2 (CB 9) and the FAN 3 / FAN 4 (CB10) circuit breakers,
located on the HB 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 6-4