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Unique Broadband Systems Ltd. DRU1KW User Manual

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 Chapter 
6 
Maintenance 
 
6.5.2.3 
High Band Sub-system Shutdown 
 
The Independent DRU HB sub-system should be shut down in the following sequence: 
 
1.  Using the HBE GUI, set SysOperatingMode to standby. 
o
 
The LBE GUI Cpl1ForwardPwr reading will be 0 dBm. 
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.  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. 
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. 
3.  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. 
4.  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. 
5.  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. 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
SX03-20000-01-M01 6-11