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SPARC T8-2 Server Service Manual

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Updated: January 2022
 
 

Rear Panel Controls and LEDs

image:Figure showing the rear panel controls and LEDs.
No.
LED
Icon or Label
Description
1
PS AC OK LED
AC
Indicates these conditions:
  • Off – No AC power applied to this power supply.

  • Green steady on – AC power is applied to this power supply and is within specifications.

  • Amber steady on – AC power is applied to this power supply and is below 85V.

2
PS DC OK LED (green)
image:DC OK icon
Indicates these conditions:
  • Off – 12V DC output from this power supply is disabled or not within specification.

  • Steady on – 12V DC output from this power supply is present and within specifications.

3
PS Fault LED (amber)
image:Service action icon
Indicates these conditions:
  • Off – Steady state, no service action is required.

  • Steady on – A fault has been detected on this power supply.

4
NET MGT Port Link and Activity LED (green on left)
NET MGT Port Speed LED (green on right)
LINK/ACT
SPD
Indicates these conditions:
  • Off – No link is established.

  • Steady On – A link is established.

  • Blinking – A link is established and there is activity on the port.

Indicates these conditions:
  • Off – The link is operating as a 10 Mbps connection.

  • Steady On – The link is operating as a 100 Mbps connection.

5
Locate indicator and button (white)
image:Icon for the Locate Button/LED
Turn on the Locate indicator by pressing the Locate button, or see Locate the Server. When lit, the LED blinks rapidly.
6
Service Action Required LED (amber)
image:Icon for the Service Required LED
The fmadm faulty command provides details about any faults that cause this indicator to light. See Identify Faulted Components.
Under some fault conditions, individual component fault LEDs are lit in addition to the Service Action Required LED.
7
System OK Indicator (green)
image:Icon for the System OK Indicator
Indicates these conditions:
  • Off – Server is not running in its normal state. Server power might be off. The SPM might be running.

  • Steady on – Server is powered on and is running in its normal operating state. No service actions are required.

  • Slow blink – Server is running in standby mode and can be quickly returned to full function.

  • Fast blink – A normal but transitory activity is taking place. Fast blinking might indicate that server diagnostics are running or that the server is booting.

8
Host Ethernet Port Link/Activity LED (green)
From left to right, NET 1, NET 0, NET 3, and NET 2.
Indicates these conditions:
  • Off – No link is established.

  • Steady On – A link is established.

  • Blinking – A link is established and there is activity on the port.

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