Automatic Configuration Verification - Comtech EF Data UT-4579 Installation And Operation Manual

UT-4579 X-Band Up Converter MN/UT4579.IOM
Appendix A Revision 1
Configure the online units first, and then configure the backup unit. Redundant
polling starts once you configure the backup. If this polling starts before you
configure the online units, this results in an HSB fault. This fault should clear
once you complete configuration. At this point, the BU will control the
redundant system.
In a single polarity system, set "POL=1" on all online units. In a dual polarity
system where the BU has a Polarity Switch Module (PSM) installed, configure
each unit to represent the RF feed as it is connected to "POL=1" or "POL=2". See
Figure A-7.
A.4.1.2 Automatic Configuration Verification
Use the UT-4579 front panel CONFIG FAULTRECOVERY menu branch to select
fault recovery operation as Auto. In AUTO mode, failure of an online converter
automatically causes switchover to the BU. The easiest way for you to test AUTO
mode in the field is to turn off an online unit. The online units report their status
as shown in Figure A-10. The BU VFD displays each installed unit as "A" or "M".
This example shows the entire 1:3 chain configured for AUTOMATIC operation.
Figure A-10. Front Panel Example – System in AUTO Redundancy Mode
A–10