Mac monitor cables, however, are straight through DA15, as are AUI cables.
I don't know about Mac monitor cables but AUI cables are not strictly straight
through. If I recall correctly, AUI cables are supposed to consist of four
individually screened pairs. The remaining 3 pins may or may not be connected.
I doubt very much if Apple designed their monitor cables to be compatible with
this - in the early Mac era anyway, I never knew them as wanting to be
compatible with anything, even equipment that it might be more reasonably
expected they should be compatibile with. Even (some, all?) Apple's AUI
cables are not compatible with standard AUI cables!
Using non-Apple AUI cables as monitor cables might sort-of work if all the
required pins are passed through and the screens are not interconnected but
the impedances are likely to be all over the place which might cause ringing
and other display problems, particularly if the cable is long.
AUI cables tend to mostly use clips to hold them in place while other
applications tend to use screws and many AUI cables will need the clips to be
removed before they can be repurposed. They also tend to be stiff and heavy
which may place excessive strain on the connectors on the Mac or the monitor.
Regards,
Peter Coghlan.