LEDs and Ports

The ExpressModule has four LEDs located on the InfiniBand ports panel, with two LEDs for each 4x port.

Figure 3 InfiniBand Ports and LEDs

Figure Legend

1 InfiniBand Port 1

2 Green LED for Port 1 (Physical Link)

3 Amber LED for Port 1 (Data Activity Link)

4 InfiniBand Port 2

5 Green LED for Port 2 (Physical Link)

6 Amber LED for Port 2 (Data Activity Link)

7 Hot Swap button

8 Power On indicator

9 Service Required indicator

The pair of LEDs for each port have the meanings described in the following table.

Table 2 LED Meanings

LED Color	LED Name	LED State	Meaning
Green	Physical Link	Lit	The link bringup process has successfully completed and the link width, link speed, link polarity, and link reversal have been negotiated with the neighbor port on the other end of the cable.
		Unlit	A physical connection has not been established.
Amber	Data Activity	Steady light	Infiniband is discovered over the physical link, but no data is being passed.
		Blinking light	Data is being passed.
		Unlit	A physical or logical connection (or both) has not been established.

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	Sun InfiniBand Dual Port 4x QDR PCIe ExpressModule Host Channel Adapter M2 User's Guide