Juniper PTX5000, Hardware Manual

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CCG LEDs
Each Centralized Clock Generator (CCG) has three LEDs—labeled MASTER, OK, and FAIL—located to
the right of the host subsystem LEDs on the craft interface that indicate the status of the CCGs. The
LEDs labeled CCG0 show the status of the CCG in slot CCG0. The LEDs labeled CCG1 show the status
of the CCG in slot CCG1.
Table 6 on page 26 describes the functions of the CCG LEDs.
Table 6: PTX5000 CCG LEDs
Label Color State Description
MASTER Green On steadily CCG is functioning as the primary.
– Off CCG is offline or functioning as the backup.
OK Green On steadily CCG is online and is functioning normally.
– Off CCG is offline or absent.
FAIL Red On steadily CCG has failed.
– Off No failure has been detected.
Fan Trays LEDs
One status LED for each fan tray is located to the right of the host subsystem LEDs on the craft
interface. The three fan tray status LEDs are labeled 0 through 2.
Table 7: Fan Tray LEDs on the Craft Interface
Color State Description
Green On steadily The fan tray is functioning normally.
Red On steadily The fan tray has failed.
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