Path: utzoo!utgpu!jarvis.csri.toronto.edu!rutgers!att!mtuxo!mtgzz!drutx!druwy!dlm
From: dlm@druwy.ATT.COM (Dan Moore)
Newsgroups: comp.sys.atari.st
Subject: Re: hardware addiations
Message-ID: <4089@druwy.ATT.COM>
Date: 5 Jun 89 16:08:07 GMT
References: <89052622565957E.ACBM@CSUGREEN.UCC.COLOSTATE.EDU>
Organization: AT&T, Denver, CO
Lines: 33

in article <89052622565957E.ACBM@CSUGREEN.UCC.COLOSTATE.EDU>,
SYTANG@CSUGREEN.BITNET (SHOOU-YU TANG,PHYSICS DEPT,CSU,303-491-6372) says:
> 1. Does anyone can give me some direction finding information about Tape Drive
> interface standard, like what does QIC-36 stand for? Can a Colorado Memory
> System Inc. floppy interfce Tape drive be plug into ST floppy interface port?
> Can one use a SCSI to QIC-36 controller card to connect a Tape drive? If so,
> How?

	The SCSI tape controllers work fine, ICD sells a SCSI tape
system.  The various floppy based tape interfaces (ie. QIC-40) don't
work.  The STs floppy interface just isn't clean enough to drive one
(several companies have tried it).

> 2. Does anyone has experience in connect a HP 3.5" Nighthawk hard drive to ST
> SCSI? It has 40 pins plug instead of standard 50 pins SCSI plug, someone said
> it's customerized SCSI. How the pin connections go? and how different in SCSI
> commands?

	The HP Nighthawk is not a SCSI drive, it is a custom version of
ST506 interface.  All signals and power are fed through the 40 pin
cable.  To use it with the ST you need a HP SCSI controller.

	Unfortunately several mail order companies are now selling
Nighthawks (for <$250) and are saying they are SCSI.  Lots of people
are buying the drives only to find they can't use them without buying a
HP controller card.



				Dan Moore
				AT&T Bell Labs
				Denver
				dlm@druwy.ATT.COM