Comtech EF Data XTD-400C Operation And Installation Manual page 145

MNC-0000-041
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8. Refer to Figure 35. Once the redundant mode is selected and the
waveguide switch is set appropriately, to have a faulted amplifier
automatically switched out and the standby amplifier switched in,
Automatic Mode must be enabled. Enable Redundant Mode by
clicking the "Automatic" mode checkbox as shown.
Figure 35, Select redundant Mode
9. Repeat steps 2 through 8 for the second amplifier, being sure to
use a "B" Unit Address.
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Operation Addendum, HPA Control Utility
Revision A