Figure 222: Scg Component; Figure 223: T320, T640, And T1600 Router Scg Location - Juniper M Series Monitoring And Troubleshooting Manual

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Figure 222: SCG Component

Two SCGs are installed in the T320, T640, and the T1600 routers. The SCGs install into

the upper rear of the chassis in the slots labeled

If both SCGs are installed and functioning normally,

Removing the backup SCG does not affect the functioning of the router or router. Taking

the master SCG offline might result in a brief loss of SONET clock lock while the backup

SCG becomes master.

The SCGs are hot-pluggable.

Figure 223 on page 403

shows the location of the SCGs on the T320, T640, and T1600

Chapter 15: Monitoring the SCGs

is master and