Well, that's interesting. Answering a question with a question.
Yes, the NX5u has an rca connector with a swith on it which says timecode in or timecode out.
I frequently do two or three camera shoots and use it all the time.
In fact, you can sync them up before the shoot, then disconnect the wires and the cameras stay within a couple of frames for a day or two before drifting out.
John
John Lenihan
LeniCam Video Productions
http://www.lenicamvideoproductions.com