JUNOS Internet Software Network Operations Guide: Hardware
324 ! Returning the SCG
Step 2: Locate the SCG Serial Number ID Label
Action The serial number is located on the top of the SCG, close to the midplane connector
(see Figure 133).
Figure 133: Serial Number Label on the SCG
Returning the SCG
The SCGs are hot-pluggable. If both SCGs are installed and functioning normally,
SCG0 is master and SCG1 is backup. Removing the backup SCG does not affect the
functioning of the routing node. Taking the master SCG offline might result in a brief
loss of SONET clock lock while the backup SCG becomes master.
Action To return an SCG, see the appropriate router hardware guide.
1575
Serial number ID label
AA1234
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