Figure 12-14 Path Protection With A Fiber Break - Cisco 15454-DS1-14= - 1.544Mbps Expansion Module Reference Manual

12.3 Path Protection
Figure 12-14
Span 4
Span 3
Figure 12-15
connectivity to a host Telcordia TR-303 switch. In the example, each remote switch requires eight DS-1s
to return to the host switch.
layout for each site.
Cisco ONS 15454 Reference Manual, R8.5
12-16
Path Protection with a Fiber Break
Source
ONS 15454
Node ID 0
Span 5
ONS 15454
Node ID 3
Span 6
Destination
ONS 15454
Node ID 2
shows a common path protection application. OC-3 optics provide remote switch
Figure 12-16 on page 12-18
Chapter 12
Span 1
Span 8
ONS 15454
Node ID 1
Span 7 Span 2
Fiber
break
= Fiber 1
= Fiber 2
and Figure 12-17 on page 12-18
SONET Topologies and Upgrades
show the shelf
78-18106-01