The documentation we have here at AT&T (now Lucent Technologies)
shows that connectors should be oriented perpendicular to the wave
i.e. reduce the effect known as "combing". 
Picture a 48 X 2 row connector going thru the wave - it should look
like a 2 pin connector as it passes thru the wave.

        xxxxxxxxxxxxxxxxxxxxxx                ||
        xxxxxxxxxxxxxxxxxxxxxx                ||

direction of board travel -------------=>     wave


Tom Kavendek
Lucent Technologies
Murray Hill, N.J.
[log in to unmask]