Unique Broadband Systems Ltd. DRU1KW User Manual

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 Chapter 
Maintenance 
 
6.4 
Preventative Maintenance 
 
The only required preventative maintenance is for the HPA compartment air intake filters 
and the air-to-air heat exchanger/heater exterior coils. 
 
As a general rule, it is recommended that the air filters and exterior coils be cleaned every 6 
months under normal conditions, or every 3 months in dusty environments.  UBS would 
recommend that the filters and exterior coils be inspected more frequently and cleaning 
intervals be adjusted as deemed necessary by the operator. 
 
 
6.5 
Replacement Procedures 
 
The following repeater components can be replaced: 
 
Table 6-2 Replaceable Components 
Electronics Compartment 
Part Number 
PDU Circuit Breaker 
N/A 
PDU Current Sensor 
N/A 
BMS Mounting Shelf w/Controller SX03-50310-01 
BMS 12 VDC Rectifier Module 
SX03-50320-01 
BMS 12 VDC Battery 
SX03-50330-01 
Dual Band Pass Filter (DBPF) 
SX03-50100-01 
Low Noise Amplifier (LNA) 
SX03-50200-01 
TSC SX03-50700-01 
LBD DR Filter 
SX03-51100-01 
HBE N/A 
LBE N/A 
TRMS N/A 
Air-to-Air Heat Exchanger/Heater SX03-50400-01 
HPA Compartment 
Part Number 
High Power Amplifier (HPA) 
SX03-40000-01 
HPA PSU Mounting Shelf 
SX03-51710-01 
HPA PSU 30 VDC Rectifier Module 
SX03-51720-01 
4-Way Hybrid Combiner 
SX03-21806-01 
1000W Termination 
000087206R 
500W Termination 
000051005 
500W Termination #1 Heat Sink 
SX03-21781-01 
500W Termination #2 Heat Sink 
SX03-21782-01 
SX03-20000-01-M01 6-2