Doepfer

I bought a doepfer module recently and I was wondering if I could
install that into a AS1600 case from analogue solutions.

I heard that the doepfer modules power adapter must be fit upside down
into the AS case board ( is this true? ), or is it that the doepfer
modules fit upside down in the doepfer case and right side up in an AS
case.

Thanks for you help.