Unique Broadband Systems Ltd. DRU1KW Manuale Utente
Chapter
6
Maintenance
Figure 6-13 HPA PSU 30 VDC Rectifier Module
1) Front Grill/Cover
2) Front Grill/Cover Release Button
2) Front Grill/Cover Release Button
6.5.7.1
HPA PS (30 VDC Rectifier Module) Removal
A HPA PS should be removed in the following sequence:
1. Open the electronics compartment front door for the corresponding sub-system.
2. Open the cabinet HPA compartment front door for the corresponding sub-system.
3. Using the HBE GUI or LBE GUI, place the corresponding sub-system in standby mode.
4. Switch OFF the HPA PSU circuit breaker, located on the HB cabinet PDU or LB cabinet
2. Open the cabinet HPA compartment front door for the corresponding sub-system.
3. Using the HBE GUI or LBE GUI, place the corresponding sub-system in standby mode.
4. Switch OFF the HPA PSU circuit breaker, located on the HB cabinet PDU or LB cabinet
PDU, which corresponds to the affected rectifier module – please refer to section 2.3.4
or 2.3.5 for breaker designations.
or 2.3.5 for breaker designations.
5. Slide the black release button on the rectifier module front grill/cover cover down to
release the grill/cover from the front of the rectifier module – see Figure 6-12.
6. Pull down on the rectifier module front grill/cover cover to disengage the rectifier
module from the HPA PSU mounting shelf rear panel – see Figure 6-12.
7. Pull the rectifier module from the HPA PSU mounting shelf and set it aside.
SX03-20000-01-M01 6-27