Unique Broadband Systems Ltd. DRU1KW User Manual

Page of 176
 
 Chapter 
Maintenance 
 
6.5.4.2 
LBE Installation 
 
 
Any RF cable, which is terminated with a SMA connector, should be 
tightened with a 5/16” torque wrench to avoid over tightening and 
damaging the cable connector or mating connector. 
 
The replacement LBE should be installed in the following sequence: 
 
1.  Slide the replacement LBE onto the mounting brackets in the LB cabinet electronics 
2. 
Replace the two (2) Phillips pan head screws which secure the LBE to the mounting 
brackets
3.  Re-connect the wires/cables to the LBE rear panel in the order that they appear in 
Table 6-4 (Combined DRU) or Table 6-5 (Independent DRU). 
4.  Switch ON the LBE rear panel power switch. 
5.  Switch ON the LBE 25A circuit breaker, located on the BMS front panel. 
6.  Switch ON the TSC-L 5A circuit breaker, located on the BMS front panel. 
7.  Switch ON the LB HPA PSU circuit breaker (CB1, CB2, CB3 and CB4), located on the 
LB cabinet PDU front panel. 
8.  Please refer to SiriusXM instructions as well as the LBE Operating Manual to configure 
the LBE with specific settings for its assigned location. 
9.  Using the LBE GUI, place the LB sub-system in transmit_only mode. 
10. Close the electronics compartment front and rear doors. 
 
Figure 6-5 LBE Mounting Brackets 
 
 
1)  LBE Mounting Bracket (left side) 
2)  LBE Mounting Bracket (right side) 
3)  Mounting Screw Hole 
 
 
 
 
SX03-20000-01-M01 6-16