Re: Problem connecting Wangtek 5125ES tape drive to Apple HS SCSI card

[o9938156@wsuaix.csc.wsu.edu (mark lyon)]

jeffr@bnr.ca (Jeffrey Robertson) writes:
: Hi:
: 
: I just received a Wangtek 5125ES SCSI tape drive that I bought from
: someone on the net.  He assured me it that it would work with the Apple
: High Speed SCSI card in my IIgs.  (He used a RamFast card to drive it,
: but a friend used a HS SCSI card to drive the similar 5150ES drive.)
: 
: I've been unable to get my system to recognize the drive, however,
: so I'm posting this in hopes of getting some insights.  Here's the
: deal:
: 
[snip]
: 
: I've taken all my other SCSI devices off the card, to avoid SCSI ID
: conflicts  (the tape drive doesn't seem to have an ID selector).
: The Wangtek has only 1 50-pin connector.  I've tried connecting to
: it both with and without an external SCSI terminator.  No dice.
: 
: I have access to an old Apple 40SC tape drive, so I tried connecting
: it in the same way as the Wangtek, and my system _does_ recognize it.
: For this reason, I'm pretty sure it is a problem with the Wangtek.
: 
This sounds like the dreaded terminator power problem!  At least
one device on the SCSI chain must supply terminator power. The
HS SCSI card doesn't.  The RamFast does.  The other tape drive
must too, since it works.  So, try connecting both your hard
drive and the tape drive at the same time, and if it doesn't
work right away, fiddle with the id number on the drive.
I don't know if you need any other drivers or anything, however.
Hope this helps,
Mark Marr-Lyon