Rig function is not working that is why we can’t configure Revertive and Non-revertive function.REG function is 3+1 protection scheme.
REG Function not supported in RTN 910, due to this N+1 protection can not be defined.
RTN 910 can not support N+1 feature, RTN 620 & RTN 950 support this function.
RTN 910 cannot inherit all the features from RTN 620, because they are totally different platform.
RTN 620 is 2U high box with 8 slots which can support 4 IF cards, RTN 910 is only 1U high box with 3 slots which can support 2 IF cards.
RIG is related to N+1 protection function.RTN 620 can support N+1(N<=3) by using 4 IF slots. RTN 910 can only support 1+1 due to hardware/slots limitation.
RTN 950 is 2U high box with 8 slots which can support 6 IF cards, and also can support N+1(N<=4) by using 5 IF slots.
RTN 620 & RTN 950 support RIG function. Attached is the PPt in which the function of REG is used in RTN 620.