Unique Broadband Systems Ltd. DRU1KW User Manual

 

 

Open or loose RF connections during operation may cause electric arcs 
that can cause burns and eye injuries, as well as damage equipment.  

Always ensure that all HPA compartment frame backplane components 
are tightened once the HPA’s are installed. 

 
Once the installation of the HPA’s is complete, the components which are mounted to the HPA 
compartment frame backplane must be secured in place.  A torque rating of 

10.8 Inch Lbs. 

must be used to tighten the 8-32 socket head cap screws which secure these components to 
the HPA compartment frame backplane. 

 
 

 

The two (2) HPA PSU mounting shelves each include two (2) empty slots for the HPA PSU 30 

VDC rectifier modules.  Please refer to Figure 3-17, Figure 3-18 or drawings SX03-20000-02-
D01 or SX03-20000-03-D01 for the mounting position of the rectifier modules. 

 
The HPA PSU 30 VDC rectifier modules should be installed in the following sequence: 

 

1.  Slide the black release button on the rectifier module front grill/cover cover to the 

right to release the grill/cover from the front of the rectifier module. 

2.  Position the rectifier module so that the open grill cover is facing down. 
3.  Slide the rectifier module into either of the empty slots on the left most HPA PSU 

mounting shelf until it stops – see Figure 3-24. 

4.  To secure the rectifier module in place, lift the grill cover up and push it towards the 

rectifier module until it clicks in place.  As the grill cover is pushed in place, the 
rectifier module will slide all the way into the slot. 

5.  Repeat steps 1 through 4 for the three (3) remaining rectifier modules. 

 

 

 

1)  Front Grill/Cover 
2)  Front Grill/Cover Release Button 
3)  Rear Panel 

 

SX03-20000-01-M01 3-28