Cisco Systems ONS 15600 SDH

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Cisco ONS 15600 SDH Procedure Guide, R8.0

October 2007

Chapter18 DLPs F300 to F399

DLP- F349 Install Fiber-Optic Cables for MS-SPRing Configurations

Caution Do not provision the MS-SPRing east and west ports on the same STM-N card.

Note To avoid error, connect fiber-optic cable so that the farthest slot to the right represents the east port, and

the farthest slot to the left represents the west port. Fiber connected to an east port at one node must plug

into the west port on an adjacent node.

Note See Table16-1 on page 16-19 and Table 16-2 on page 16-19 for OGI connector pinouts of STM-N cards.

Step1 Plan your fiber connections. Use the same plan for all MS-SPRing nodes. MS-SPRing configuration is

achieved by correctly cabling the transmit and receive fibers of each node to the others.

Step2 Plug the fiber into the Tx connector of an STM-N port at one node and plug the other end into the Rx

connector of an STM-N port at the adjacent node. The card displays an SF LED if the transmit and

receive fibers are mismatched.

Step3 Repeat Step 2 until you have configured the ring.

Figure 18-11 shows fiber connections for a two-fiber MS-SPRing with trunk ports in Slot 2, Port 7 (west)

and Slot 12, Port 11 (east).

Figure18-11 Connecting Fiber to a Four-Node, Two-Fiber MS-SPRing

Note To provision an MS-SPRing, see Chapter5, “Turn Up a Network”

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Node 1

West East

Slot 2

Port 7

Slot 12

Port 11

Node 4

Slot 2

Port 7

Slot 12

Port 11

Node 2

Slot 2

Port 7

Slot 12

Port 11

Node 3

Slot 2

Port 7

Slot 12

Port 11