I am working on the board that suppose to have 1 GbE port (10/100/1000BASE-T). Looking at connectors all I seem to find is standard RJ45 connector.
However in my design the board itself is not directly exposed to the outside, there is a backplane which will include some other ports as well.
Now, I could put the standard RJ45 on the board and and 2 of them on backplane and connect board to backplane with standard CAT5 cable. However the RJ45 connector is rather bulky comparing to everything else on board.
So my question is -- are there any alternatives to this approach, how do commercial products that do not expose main board ports directly work around that?
PS: I've seen this question which recommends micro USB 2.0 port as chip alternative, but that means only 4 wires per port (so 2 ports per board for single RJ45?) I foresee some impedance matching issues right there.