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Revision A
Operation Addendum, HPA Control Utility
Redundant ODU Configuration
Overview
ODU Amplifiers configured in a system for redundant operation
are assembled and tested to function without an external
controller unless one is ordered with the system.
The two amplifiers are each equipped with internal
microprocessors, and each unit contains the programming and
hardware wiring that permits control of the RF waveguide switch
in a 1:1 system.
Each of the steps must be performed for each amplifier in a
redundant configuration. When configuring ODU amplifiers, you
must use the HPA Control Utility to configure the amplifiers.
When using Rack Mount amplifiers you may use either the HPA
Control Utility or the amplifier front panel controls.
Basic System
Refer to Figure 29. The amplifiers are connected to each other
and the RF switch via a “Y” cable. This cable cross connects the
“Amplifier Failed” output of one amplifier to the sensing input on
the opposite amplifier. The cable also connects both amplifiers
to the RF switch, so that either amplifier can operate the switch.
The “Y” cable connectors are marked to connect to either the
WG Switch or the “A” or “B” amplifier.
Note
Either amplifier can be installed in the “A” location
without affecting function if internal address is “A”.
However, the “Y” cable “A” connection must be made to
the amplifier located in the “A” location of the RF plate
as marked.
Note
The amplifier labeled “A” on the cable must be
designated as “A” in the firmware; the “B” amplifier must
be designated “B” in the firmware. If the firmware
designation is changed the system will fail to function as
a 1:1 system.
EAR EXPORT CONTROLLED: The information contained in this Manual refers or relates to a product that is subject
to the U.S. Export Administration Regulations (EAR). Transfer of data herein by any means to a Foreign Person,
whether in the U.S. or abroad, may require an export license from the U.S. Department of Commerce.
