Juniper SRX550, Hardware Manual

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Table 7: SRX550 Services Gateway Front Panel LEDs
Description
LED
Color LED State
LED
Label
Indicates a major alarm, such as low Services Processing Unit (SPU)
memory (less than 10% remaining), session full, maximum number of VPN
tunnels reached, high availability (HA) status changed, or redundant group
member not found.
Amber On Steadily ALARM
Indicates a critical alarm, such as a failure of a hardware component or
software module.
Red
indicates that the device is starting up.
NOTE: When the system is up and running, if the ALARM LED is off, it
indicates that no alarms are active on the device.
Unlit Off
The services gateway is functioning normally. Green On Steadily STATUS
The services gateway is starting up, running diagnostics, or shutting down. Amber
The services gateway has failed. Red
The services gateway is powered off. Unlit Off
The services gateway is functioning normally and that the services gateway
and all power supply units (PSUs) are receiving power.
Green Steadily on POWER
At least one PSU has failed. Red
The Power button has been pressed and that the services gateway is
shutting down.
Amber
The services gateway is not receiving power. Unlit Off
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