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You're now almost ready to do your first power-up on the ROV! Insert the DB-25 connector attached to the wire harness into the reciprocal connector on the Controller Board. You may have to wiggle it around a bit to fit under the USB plug for the webcam, but it should go in without needing to unplug anything.

Plug the one of the Ethernet patch cables that came in the Homeplug box into the Topside Adapter and into the Ethernet port on your laptop.

Plug the USB cable that came with your BeagleBone into your computer and get ready to plug the other end of the cable into the port on your Homeplug adapter.

Connecting USB power to the Topside Adapter will cause the ROV to turn on. Since the ESCs may not be calibrated initially, it is a good idea to make sure the propellers on the ROV are clear, and that the camera platform can move smoothly if the servo moves.

Plug the USB cable into your topside adapter and look for lights on the Homeplug board in the Topside adapter to turn on. They should go through a startup sequence but then all be lit after several seconds (but the middle light may blink rapidly)

Look at the controller board and verify that the green "PWR" LED is on. You should also see one sold red LED and one blinking LED which were used to test the board during the QA process before being shipped.