Juniper Networks RELEASE 8.1.X E320 User Manual

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Board-level LEDs:

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OK (green)—Physical link is connected properly and is functioning properly

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FAIL (red)—Failure detected

Port LEDs:

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ALM—Bi-color LED:

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Yellow: Local loss of signal exists

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Red: Remote loss of signal exists

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OK (green)—SONET is up and port is functioning properly. If not lit, a problem
exists.

LEDs

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See Monitoring SONET/SDH Interfaces in JUNOSe Physical Layer Configuration Guide,
Chapter 3, Configuring Unchannelized OCx/STMx Interfaces.

Alarms, errors, and events

OC12/STM4-2 POS IOA

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OC12/STM4-2 POS IOA