
6-1
Chapter 6. Remote Control
Specification
6.1 General
The backup KPA in the redundancy subsystem automatically monitors the configuration
and status for each of the primary (chained) KPAs. This information is communicated via
the dedicated serial interface between the KPAs.
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If a primary KPA fails, the backup detects this event and automatically
reconfigures itself to the proper attenuation setting and positions the
waveguide switch to provide minimal loss of traffic.
A result of this design is to greatly lessen the throughput requirements (i.e. polling rate)
of earth station monitor and control systems. The backup KPA handles all of the time
critical tasks allowing the earth station monitor and control system to focus on less
intelligent subsystems.
Summary of Contents for KPA-020IN
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