Description: The Y-cable configuration for the APS group associated with user channels.

noYcable

The APS channels in the APS group are not connected to an external Y-cable.

ycable

Two user-side interfaces (not necessarily SONET or CDL) are connected to an external y-cable and are grouped into an APS group for endToEnd APS. The received user signal is split in the y-cable coupler and is received on both the interfaces. However, only one interface must transmit toward the user at any given time. With cApsConfigYcable set to 'ycable', the cApsConfigSpan must be set to 'endToEnd'. There must be only two APS channels in an APS group with cApsConfigYcable set to 'ycable'.

ycableXconnectCommon

This refers to a configuration where two user-side interfaces are connected to an external y-cable. The two signals received on these interface are connected to the same cross connect in the switch. The switch fabric selects one of the two received signals, duplicates it, and forwards it to two network side interfaces grouped for 1+1 linear APS. The received signal from the network side is transmitted to only one user-side interface. cApsConfigSpan is ignored if cApsConfigYcable is set to 'ycableXconnectCommon'. There must be only two APS channels in an APS group with cApsConfigYcable set to 'ycableXconnectCommon'.

This object may not be modified if the associated cApsConfigRowStatus object is equal to 'active'.

If this object is set to 'ycable' or 'ycableXconnectCommon', the user must shut one of the two channels before setting cApsConfigRowStatus to 'notInService'.