Setting Up A Upsr; Figure 5-19 Layout Of Node Id 0 In The Oc-3 Upsr Example (Figure 5-15); Figure 5-20 Layout Of Node Ids 1 - 3 In The Oc-3 Upsr Example (Figure 5-15) - Cisco ONS 15327 User Documentation

Chapter 5 SONET Topologies

Figure 5-19 Layout of Node ID 0 in the OC-3 UPSR example (Figure 5-15)

In the
4 IR 1310 cards. Eight free slots exist. They can be provisioned with other cards or left empty.
Figure 5-20
Figure 5-20 Layout of Node IDs 1 – 3 in the OC-3 UPSR example (Figure 5-15)

5.3.2 Setting Up a UPSR

To set up a UPSR, you perform four basic procedures:
•
•
•
•
After you enable the ports, you set up the UPSR circuits. UPSR signal thresholds—the levels that
determine when the UPSR path is switched—are set at the circuit level. To create UPSR circuits, see the
"Circuits Overview" section on page
June 2002
OC3 IR 1310
Free Slot
Free Slot
Free Slot
Figure 5-18 on page 5-22
shows the shelf assembly setup for this configuration sample.
OC3 IR 1310
OC3 IR 1310
Free Slot
Free Slot
Install the UPSR trunk cards. Use the
Create the DCC terminations. Use the
page 5-24.
Configure the timing. Use the
Enable the ports. Use the "Enable the UPSR Ports" procedure on page
XTC-28-3
4
XTC-28-3
3
MIC B
2
MIC A
1
example, Nodes IDs 1 - 3 each contain two DS1-14 cards and two OC3
XTC-28-3
4
XTC-28-3
3
MIC B
2
MIC A
1
"Install the UPSR Trunk Cards" procedure on page
"Configure the UPSR DCC Terminations" procedure on
"Set Up ONS 15327 Timing" procedure on page
6-1.
Unidirectional Path Switched Rings
5-25.
Cisco ONS 15327 User Documentation, R3.3
5
Fan
Tray
6
Slot
7
8
5
Fan
Tray
6
Slot
7
8
5-24.
3-13.
5-23