Apple IIgs CD-ROM Hook Up Question

["Tempest" <tempest@atariprotos.com>]

I have an Apple IIgs (ROM 3) with an Apple High Speed SCSI card.
Attached to the SCSI port is a hard drive, which works just fine, but
I'd like to attack a CD Rom drive to that.  I'm not exactly sure how to
go about hooking them up however.

ATM I have the HD plugged into the SCSI port, and a device which looks
like a pass-through terminator on the spare port on the back of the
drive.  This works just fine, as the IIgs reads the HD on boot.
However when I plug the CD drive into the second port on the back of
the HD and put the terminator on the spare port on the back of the CD
drive, nothing works.  I think the problem may be that I have the
terminator in the wrong spot.  I know they both work, as the guy I
bought them from had it up and running.  Also, all the device ID's are
set up correctly (I think anyway).

The whole reason I want to get this working (other than just to get it
working that is), is to copy large amounts of games from the Asimov
archive to my IIgs and burn them onto real 5.25 disks.  Am I better off
using the ADT and the serial ports for this?

Oh and is it possible to hook up a HD to an Apple IIe using the SCSI
card?  Any use for this?  I thought about taking the card out of my
IIgs when I'm done with it and sticking it in my IIe just for fun.

Tempest