* Orange + Orange/white stripe -- goes to 4-pin jumper
* Green + Green/white stripe -- goes to 4-pin jumper
* Red + Black -- goes to J10 on top board
* Red/white + Black/white -- goes to 4-pin jumper on 2nd board
* Purple + Gray -- goes to jumper J1
* Blue/red + Green/red -- goes to 4-pin jumper on 3rd board, not visible.
The 2nd board has 8 wires, possibly related to the RJ45 connector: orange, orange/white, green, green/white, purple gray., red/white, black/white.
Since the twisted pairs are obviously the TX and RX lines, then purple and gray are likely to be the link/activity lights on the connector, and red/white stripe are power/ground.
Here is my guess:
* Orange + Orange/white stripe -- twisted pair probably TX +-
* Green + Green/white stripe -- twisted pair probably RX +-
* Red + Black -- power/ground 1 on RJ45 connector??
* Red/white + Black/white -- power/ground 2 on RJ45 connector?
* Purple + Gray -- link+activity lights?
* Blue/red + Green/red -- external power connector?
Thanks if anyone can provide help.