Dell PowerConnect M6220 - Manual (Page 63)

Hardware Description 61
Off No link.
Act Blinking Green Activity.
Off No activity.
Wrong Bay 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.
Table 4-7. 10 Gb Base-T Module Definitions
LED Color Definition