Juniper Networks M20 User Manual
Page 31

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Duplex LC/PC Connector (Rx and Tx)
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Optical interface support—see Table 6 on page 33
NOTE: To extend the life of the laser, when a PIC is not being actively used with any valid
links, take the PIC offline until you are ready to establish a link to another device. For
information about taking a PIC offline, see the
request chassis pic offline
command in the
JUNOS System Basics and Services Command Reference.
Cables and connectors
One tricolor per port:
■
Off—Not enabled
■
Green—Online with no alarms or failures
■
Amber—Online with alarms for remote failures
■
Red—Active with a local alarm; router has detected a failure
LEDs
SONET/SDH OC48c/STM16 PIC (Quad-Wide)
■
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SONET/SDH OC48c/STM16 PIC (Quad-Wide)