| 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'. |