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LED Overview
5-3
3930 Service Delivery Switch
Hardware Installation and Start-up Manual
009-3223-001 Standard Revision E
Copyright
©
2012-2014 Ciena
®
Corporation
January 2014
Table 5-1
Unit Status LEDs on 3930 Standard and 3930 Sync systems
LED
Indication
Description
STAT
Off
System is not powered or is not operating normally.
Green
Indicates status normal/system ready.
Blinking Green
System is initializing and performing self tests.
PWR
Green
Turns on when power is applied and remains on until the
system is powered off.
ALRM
Off
Normal operating conditions.
Yellow
An error has been detected.
TEMP
Off
System temperature is within the defined operating range.
Yellow
Over temperature alarm condition present. The system
temperature has exceeded the operating temperature
range.
Table 5-2
Unit Status LEDs on a 3930 Sync + External Timing system
LED
Indication
Description
STAT
Off
System is not powered or is not operating normally.
Green
Indicates status normal/system ready.
Blinking Green
System is initializing and performing self tests.
ALRM
Off
Normal operating conditions.
Yellow
An error has been detected.
SYNC
Off
System is in free run timing mode.
Green
System is locked to a synchronization source (external
input such as 1588, SyncE, etc).
Blinking Green
System is acquiring synchronization.
Yellow
System is in holdover timing mode.
Содержание 170-3930-900
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