Juniper ACX500, Hardware Manual

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System LED on the Front Panel
One bicolor LED labeled SYS indicates the status of the router. Table 6 on page 60 describes the
system LED in more detail.
Table 6: System LED on the Front Panel
Label Color State Description
SYS Green Blinking The router is transitioning online.
On
steadily The router is functioning normally.
Red Blinking The router has reported a yellow alarm.
On
steadily The router has reported a red alarm.
Gigabit Ethernet SFP and RJ-45 Port LEDs
Each Gigabit Ethernet SFP and RJ-45 port on the front panel of the router has one pair of port LEDs.
Table 7 on page 60 describes the LEDs in more detail.
Table 7: Ethernet Port LEDs
Name Location Color State Description
Activity Left Green Blinking The port is receiving data.
– Off The port is not receiving data.
Link Right Yellow On The link is online.
– Off No link.
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