This object is used by Optimux-XL, FomiE3/T3, Optimux-T3 and Optimux-155. For Optimux-XL: If optRedundancyStatus = notAvailable(3), then this field can be off(2) or forcedBU(6). - off(2) = forcedMain: forces the device to start immediately use of Main (Link 1), no matter what is its state and stay there - forcedBU(6) = forces the device to start immediately use of Backup (Link 2), no matter what is its state and stay there. This value is not supported by Optimux-T3. Else, user can configure this field as: auto(3) = switch back to main link when valid. manual(4) = don't switch back to main link = automatic w/o return. For FomiE3/T3 all values are applicable unconditioned. For Optimux-T3 and OP-4 New Look, values off(2), auto(3), manual(4) are applicable unconditioned. For Optimux-155/1 values off (2) = Protection Lockout, auto (3) and manual (4) and autoNonRevertive (7)