Unique Broadband Systems Ltd. DRU1KW User Manual

Page of 176
 
 Chapter 
Installation 
 
3.9.2 
High Power Amplifier (HPA) 
 
 
Always install the high power amplifiers with the aid of a second 
handler.  The high power amplifier weighs approximately 55 lbs. 
 
The HPA compartment frame includes four (4) slots for the HPA’s.  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 HPA’s. 
 
The HPA’s should be installed in the following sequence: 
 
1.  Using two handlers, one located on each side of the HPA, lift the HPA and position it 
level to the left most open space in the HPA compartment frame. 
2.  Carefully line up the HPA sliders (1 located on the top and 1 located on the bottom of 
the HPA) with the slide rails mounted in the HPA compartment frame – see Figure 
3.  Slowly push the HPA into the HPA compartment frame until it stops. 
4.  There are three (3) blind mate connectors located on the HPA rear panel which are 
aligned with corresponding connectors on the HPA compartment frame backplane – 
see  Figure 3-21.  Ensure that the connectors are aligned properly and slowly push 
the HPA into the backplane until it stops.  At this point, the back side of the HPA front 
panel should be flush with the HPA compartment frame. 
5.  Secure the HPA in place by tightening the 10-32 Phillips head captive screw (located at 
the top of the HPA front panel) with a torque  rating  of  19.2  Inch  Lbs.  –  see  Figure 
3-22. 
6.  Place the magnetic plate at the bottom of the HPA front panel and tighten the 10-32 
Phillips head captive screw with a torque rating of 19.2 Inch Lbs.  Note: The magnetic 
plate must be installed in order for the HPA to power up later on. 
7.  Repeat steps 1 through 6 for the remaining three (3) HPA’s. 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
SX03-20000-01-M01 3-25