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UT-4500-A Series Upconverters Revision 1
Appendix B MN-UT4500A
B–9
high-speed bus fault will result. This fault should clear when configuration is completed. At this
point, control of the redundant system is performed from the backup upconverter.
B.4.1.2 Automatic Configuration Verification
The backup upconverter has a menu that allows the operator to choose, on a unit-by-unit basis,
manual (M) or automatic (A) operating mode.
Figure B-10 shows the system configured for automatic (A) operation. In this mode, failure of an
online upconverter will automatically cause a switchover to the redundant unit to occur. In the
field, the simplest way to test this mode is to turn off an online unit. The AUTO/MANUAL
selection is made in the upconverter. The online units will report their status as shown in Figure
B-10.
Figure B-10. System in Auto Redundant Mode
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