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Date: Thu, 28 Dec 1995 10:22:33 -0700
Message-Id: <95122810223289@titan.cs.mci.com>
From: tst@titan.cs.mci.com (Thomas S. Traylor)
To: msmith@atrad.adelaide.edu.au, freebsd-questions@freebsd.org
Subject: Re: Nec cdrom
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|Peter Wemm stands accused of saying:
|> I've been fighting with a "Model: CDR-55JD" NEC drive for the last few
|> days.  This drive and I have reached an understanding.. We both HATE
|> each other.
|
|I bought an NEC CD drive some time ago; it was so much of a crock that I was
|forced to return it & replace it with a Matsushita unit.  NEC admitted that
|(despite their marketing claiming it was a SCSI-2 unit) it was only a 
|"pseudo-scsi" (their words) drive that would only work properly with their
|drivers.

I haven't had any problems with my NEC CDROM drive since I have had it.  It is
a CDR-501, a 4x SCSI internal.  It has worked well with FreeBSD 1.1.5.1 to
2.1. I'm currently running it off of a Adaptec 2940 and use to use it on an
Adaptec 1542cf.

|I couldn't get it work under 2.0R, or on a Mac, or my old Atari TT, or 
|even under DOS (I bought the drive bare).

I have had no problems with it using it with DOS, Windows 3.1, or Windows 95.

|I have no faith whatsoever in NEC's ability to produce SCSI CD units, so
|reading about your problems doesn't surprise much 8)
|
|> I *hate* that drive...  If the other NEC drives are like it too, I'll
|> be very reluctant to touch them ever again.
|
|This is my experience.
|
|> BTW: I, too, would dearly love to know what the other jumpers are for.
|> I suspect #5 or #6 is termination enable, but I'm not sure.
|
|My guess is termination enable terminator power to the bus; you can check 
|this easily enough with a beep-meter.

If I recall right one of these was for termination, but I don't recall which
and what the other was for.  I still have the manual for the CDR-501, but I'm
not at the same place it is. So if you would like to know what they are for
drop me some email and I'll get you that information.

|> -Peter
|
|-- 
|]] Mike Smith, Software Engineer        msmith@atrad.adelaide.edu.au    [[
|]] Genesis Software                     genesis@atrad.adelaide.edu.au   [[
|]] High-speed data acquisition and      (GSM mobile) 0411-222-496       [[
|]] realtime instrument control          (ph/fax)  +61-8-267-3039        [[
|]] "Who does BSD?" "We do Chucky, we do."                               [[

Thomas Traylor
tst@titan.cs.mci.com