What are the ground pins on GigaBlox Nano?

Are the GND pins on the RazorBeam header for the 4 port gig ethernet switch both Power Ground or is one Power ground and one signal ground?

Pins 1,3 and 39 on the connector.

On the daughterboard, pins 1,3 and 39 are all the same ground. This is a signal and power ground for the board, there is no seperation of grounds on GigaBlox Nano. Seperation of grounds only occurs when the transformers are placed in the connection, which GigaBlox Nano does not have.