Cisco ONS 15310-MA SDH Procedure Manual page 313

Chapter 16 DLPs H1 to H99
Figure 16-15
West
West
If you are creating a path protection dual-ring interconnect (DRI),
example. Because the ONS 15310-MA SDH has only two optical ports, in
represented by Nodes 1, 2, 7, or 8. Nodes 3, 4, 5, and 6 must represent other terminating equipment, such
as the ONS 15310-MA SDH, ONS 15327, ONS 15454, or ONS 15600.
78-19416-01
Connecting Fiber to a Four-Node Path Protection Configuration
1 2
Tx Rx Tx Rx
Node 1
1 2
Tx Rx Tx Rx
Node 3
Cisco ONS 15310-MA SDH Procedure Guide, Release 9.1 and Release 9.2
1 2
Tx Rx Tx Rx
East
Node 2
1 2
Tx Rx Tx Rx
East
Node 4
Figure 16-16 shows a traditional DRI
Figure 16-16 it can be
16-23