The connectors in pairs are crossed in the mounting cord you are talking
about. The pair positions though are the same:
Red/Green is pair #1 (the one your
first line comes through). Yellow/Black is pair #2 (second line or
So, pin #1 will
become #4 on the other end. Pin #2 will become #3, #3 will become
#2 and #4 will become #1.
Also, if you use 6-position plug, make
sure the conductors did not shift a position to the left or right.
The Red/Green pair should be in the very center of the plug.
Dmitri Abaimov, RCDD