5-24
Cisco ONS 15327 User Documentation, R3.3
June 2002
Chapter 5 SONET Topologies
Unidirectional Path Switched Rings
Procedure: Install the UPSR Trunk Cards
Step 1
Install the OC-N cards that will serve as the UPSR trunk cards. You can install the OC-3, OC-12, and
OC-48 cards in any high-speed slot (Slots 1–4).
Step 2
Allow the cards to boot.
Step 3
Attach the fiber to the east and west UPSR ports at each node.
To avoid errors, make the east and west ports the same slot in each node. Fiber connected to an east port
at one node must plug into the west port on an adjacent node.
shows fiber connections for a
four-node UPSR with trunk cards in Slot 1 (west) and Slot 2 (east).
Always plug the fiber plugged into the transmit (Tx) connector of an OC-N card at one node into the
receive (Rx) connector of an OC-N card at the adjacent node. The card will display an SF LED if Tx and
Rx fibers are mismatched.
Figure 5-21 Connecting fiber to a four-node UPSR
Procedure: Configure the UPSR DCC Terminations
Step 1
Log into the first node that will be in the UPSR.
Step 2
Click the
Provisioning > Sonet DCC
tabs.
Step 3
In the SDCC Terminations section, click
Create
.
Step 4
On the Create SDCC Terminations dialog box, press Control and click the two slots/ports that will serve
as the UPSR ports at the node. For example, Slot 3 (OC-48)/Port 1 and Slot 2 (OC-48)/Port 1.
Note
The ONS 15327 uses the SONET Section layer DCC (SDCC) for data communications. It
does not use the Line DCCs. Line DCCs can be used to tunnel DCCs from third party
equipment across ONS 15327 networks. For procedures, see the
.
71749
Node 1
Node 3
Node 2
Node 4
Slot 1
Tx Rx
Slot 2
Tx Rx
Slot 1
Tx Rx
Slot 2
Tx Rx
Slot 1
Tx Rx
Slot 2
Tx Rx
Slot 1
Tx Rx
Slot 2
Tx Rx
Summary of Contents for ONS 15327
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Page 30: ...Figures xxviii Cisco ONS 15327 User Documentation June 2002 ...
Page 44: ...Procedures xlii Cisco ONS 15454 Installation and Operations Guide R3 2 June 2002 ...
Page 540: ...Glossary GL 16 Cisco ONS 15327 User Documentation R3 3 June 2002 ...