State
LED Name
•
Off
—
No link is present.
•
Green
—
Link is active.
•
Green, blinking
—
Traffic is present on the active
link.
1-GbE Ethernet link status
•
Off
—
The unit identification LED is not in use.
•
Blue
—
The unit identification LED is activated.
Rear unit identification
AC power supplies:
•
Off
—
No AC input (12 V main power off, 12 V
standby power off).
•
Green, blinking
—
12 V main power off; 12 V
standby power on.
•
Green, solid
—
12 V main power on; 12 V
standby power on.
•
Amber, blinking
—
Warning detected but 12 V
main power on.
•
Amber, solid
—
Critical error detected; 12 V
main power off.
Power supply status
Internal Diagnostic LEDs
The server has internal fault LEDs for CPUs, DIMMs, fan modules, SD cards, the RTC battery, and the mLOM
card. These LEDs are available only when the server is in standby power mode. An LED lights amber to
indicate a faulty component.
Power must be connected to the server for these LEDs to be operate.
Note
Cisco SNS 3500 Series Appliance Hardware Installation Guide
8
Cisco SNS 3500 Series Appliance Overview
Internal Diagnostic LEDs
