Product specifications

UT-4500-A Series Upconverters Revision 1
Appendix B MN-UT4500A
B–15
B.4.4 Redundancy Systems – Upconverter Removal and Replacement
In a redundancy system, to remove an “inline” upconverter for repair, the following procedure
must be used:
Step
Description
1
Force backup of faulted unit.
2
Turn the power switch on the inline upconverter rear panel to OFF, and remove the power cord from the
upconverter. DO NOT disconnect the RF and IF cables from the TSM.
3
Unscrew the mounting screws on the TSM first, and then unscrew the rack mounting screws on the front
panel of the upconverter.
4
From the rear of the inline upconverter, hold the TSM and push the upconverter to the front of the rack until
TSM is free of the upconverter chassis.
5
Remove the inline upconverter from the front of the rack.
To install the replacement unit, the following procedure must be used.
Step
Description
1
Power up the new unit on the bench.
2
Configure the new unit for the correct redundancy settings (Redundant = ON, Address = match old unit).
3
Power off the new unit.
4
Remove existing personality module from the new unit.
5
Carefully install the new unit into the rack. The existing module in the rack will be plugged into the new unit.
6
Power up the new unit and un-force the backup.
To remove a “Backup” upconverter for repair, the following procedure must be used:
Step
Description
1
Turn the power switch on the backup upconverter rear panel to OFF, and remove the
power cord from the upconverter. Disconnect the RF and IF cables from the IOM.
2
Unscrew the rack mounting screws on the front panel of the backup upconverter.
3
Remove the backup upconverter from the front of the rack.