Unique Broadband Systems Ltd. DRU1KW User Manual

 

 

The replacement HPA PSU mounting shelf should be installed in the following sequence: 
 

1.  Slide the replacement HPA PSU mounting shelf into the open slot on the right side of 

the HPA compartment frame. 

2.  Replace the three (3) 10-32 socket head cap screws (with #10 lock washers and flat 

washers) which secure the HPA PSU mounting shelf to the HPA compartment frame – 

see  Figure 6-12.

  A torque rating of 19.2 Inch Lbs. must be used to tighten the 

screws.

 

3.  Re-connect the ground conductor to the HPA PSU mounting shelf rear panel 1/4-20 

GND terminal – see Figure 6-14. 

4.  Re-connect the two (2) return conductors to the HPA PSU mounting shelf rear panel 

1/4-20 RTN terminals – see Figure 6-14. 

5.  Re-connect the two (2) positive conductors to the HPA PSU mounting shelf rear panel 

1/4-20 POS terminals – see Figure 6-14. 

6.  Replace the plastic cover, which shields the POS and RTN DC output terminals – see 

7.  Re-connect the serial cables (

SX03-10924-02 and SX03-10924-01

) to the HPA PSU 

mounting shelf rear panel serial connectors J1 and J2 respectively – see Figure 6-14. 

8.  Re-connect the 6-pin pluggable AC terminal block to the HPA PSU mounting shelf rear 

panel 6-pin AC terminal block receptacle – see Figure 6-14. 

9.  Install the rectifier modules in the HPA PSU mounting shelf - see section 6.5.7.2. 
10. Switch ON the HPA PSU circuit breakers, located on the HB cabinet PDU or LB cabinet 

PDU – please refer to section 2.3.4 or 2.3.5 for breaker designations. 

11. Using the HBE GUI, place the HB sub-system in broadcast mode or, using the LBE 

GUI, place the LB sub-system in transmit_only mode. 

12. Close the HPA compartment front and rear doors. 
13. Close the electronics compartment front door. 

 
 

 
 

 
 

 
 
 

 
 

 
 

 
 

 
 

SX03-20000-01-M01 6-31