Dell POWEREDGE M1000E - Manual (Page 91)

Hardware Overview 91
Module LEDs
The 10GBase-T module has two or three LEDs per port, the SFP+ module
has one LED per port, and the Stacking/10 GbE module does not have any
LEDs.
10GBase-T Module LEDs
Each 10GBase-T Module has three LEDs.
Table 3-4 contains 10GBase-T port LED definitions for the PowerConnect
M6220 and M8024.
Table 3-4. 10GBase-T Module Definitions
LED Color Definition
Link/Speed Solid Green The link is operating at 10 Gbps.
Solid Yellow The link is operating at a speed other
than 10 Gbps.
Off No link.
Act Blinking Green Activity.
Off No activity.
Wrong Bay
(PCM6220 Only) Solid Red Module is in the wrong bay.
NOTE: On the PowerConnect M6220, the module must be inserted into Bay 2 to
operate. When the module is inserted into Bay 1, it will not operate and the
Wrong Bay LED is solid red.