Specifications

2-10

Cisco ONS 15530 Planning Guide

OL-7708-01

Chapter 2 Protection Schemes and Network Topologies

Client Based Line Card Protection

Transponder Line Cards

Figure 2-6 shows the architecture that supports client protection using transponder line cards.

Figure 2-6 Client Based Line Card Protection Scheme for Transponder Line Cards

Considerations for Client Protection with Transponder Line Cards

The following considerations apply when using client protection:

• Due to their lower optical loss, we recommend using nonsplitter line cards for configurations with

client protection.

• Client protected configurations allow monitoring of the protection fiber without the OSC.

• Using transponder line cards, up to four channels can be client protected on a single shelf when the

OSC is not supported; if the OSC is supported, up to three channels can be client protected on a

single shelf.

ESCON Aggregation Cards

Figure 2-7 shows an example configuration that supports client protection using ESCON aggregation

cards and 10-Gbps ITU trunk cards.

OADM

modules

West

East

SRC

LRC

Client optics

ITU optics

Performance

monitor

CPU

LRC

LRCLRC

OSC

Redundant

CPU switch

modules

Optical

fiber

connection

Electrical

backplane

connection

79306

Client

device

Transponder

line cards