150-402-100-03
L
F
IST OF
IGURES
1. Typical HiGain System ......................................................................... 1
2. Front Panel ............................................................................................ 5
3. User Option Locations........................................................................... 8
4. HRU-402 Block Diagram .................................................................... 10
5. HiGain System Generic Loopbacks (GNLB)...................................... 13
6. Installing the HRU-402 in a Remote Enclosure.................................. 17
7. dB-9 and dB-25 RS-232 I/O Interfaces............................................... 23
8. Connecting the HRU-402 to a Maintenance Terminal........................ 24
11. System Spans....................................................................................... 28
14. Span 5 Status Screen for Four Doubler Applications.......................... 32
23. Four Doublers, Span 1 Alarm History Screen..................................... 46
HRU-402 List 1 and List 3
November 5, 1998
List of Figures
vii