they have different filtering chokes, but they are electically compatible.
so, probably the FCC would like the old ones removed from service, but in
fact they work just fine.

re:

> Date: Wed, 11 Dec 2002 13:44:02 -0500
> From: John Wilson <wilson@dbit.com>
> To: port-vax@netbsd.org
> Subject: Re: qe0 problems - ring overrun or discarding oversize frame errors
> Sender: port-vax-owner@netbsd.org
> 
> From: Robertdkeys@aol.com
> 
> >I notice that the mount plates on each are
> >labelled differently (either delqa or deqna).
> >Maybe there are enough differences that IFF
> >you sub a delqa on the deqna cabkit it causes
> >problems?
> 
> I've *heard* (but don't know from experience) that the cab kits are somehow
> incompatible with each other, so you can't mix & match.  Anyone know different,
> or if it's true, anyone know why?  Seems crazy to me...
> 
> John Wilson
> D Bit