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User's Manual Part 2

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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 breaker (CB1), located on the PDU.
o The HB HPA PSU (PS 1) Norm LED will be extinguished.
o The HB HPA front panel LED will flash green and red alternately.
4. Switch OFF the LB HPA PSU circuit breaker (CB2), located on the PDU.
o The LB HPA PSU (PS 2) Norm LED will be extinguished.
o The LB HPA front panel LED will flash 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 HPA-H 5A circuit breaker, located on the BMS front panel.
o The HB HPA LED will be extinguished.
7. Switch OFF the HPA-L 5A circuit breaker, located on the BMS front panel.
o The LB HPA LED 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 the FAN 1 (CB 9) and FAN 2 (CB10) circuit breakers, located on the 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.
11. Switch OFF the TRMS circuit breaker (CB 8), located on the PDU front panel.
o The TRMS Power LED will be extinguished.
12. Switch OFF the SERVICE AC circuit breaker (CB 7), located on the PDU.
13. Switch OFF the 12 VDC battery circuit breaker (BAT CB), located on the BMS rear
panel.
14. Switch OFF the BMS circuit breaker (CB 6), located on the PDU.
SX03-10000-01-M01 6-3