Fujitsi 2444AC 9-track tape drive/PDP-11

Paul Anderson useddec at gmail.com
Fri Apr 12 23:07:04 CDT 2019

Hi Eugene,

I found my Emulex boards, but found TU13s and not QT13s. I did not look at
the S box boards.

Then I found a few Cipher Data Products ( AKA Spectra Logic Products)
500A00s. I'm not sure what they are, but they look like re-branded Emulex
with different handles.

Did Dilog or anyone else make anything else that would work?


On Fri, Apr 12, 2019 at 9:37 AM W2HX via cctalk <cctalk at classiccmp.org>

> Great, thank you to everyone!
> This is what I purchased...
> https://www.ebay.com/itm/171171330190
> looks to be the right thing. I would have made it myself but I'd have to
> buy like 50 feet minimum of the ribbon plus connectors plus shipping plus
> my time. This seemed like a good compromise.
> ________________________________________
> From: cctalk <cctalk-bounces at classiccmp.org> on behalf of Glen Slick via
> cctalk <cctalk at classiccmp.org>
> Sent: Thursday, April 11, 2019 9:10 PM
> To: General Discussion: On-Topic and Off-Topic Posts
> Subject: Re: Fujitsi 2444AC 9-track tape drive/PDP-11
> On Thu, Apr 11, 2019 at 5:55 PM W2HX via cctalk <cctalk at classiccmp.org>
> wrote:
> >
> > Question to owners of the 2444AC. I have been looking to acquire the
> Emulex QT13 but cannot find anything on ebay (I did miss one early on and
> wanted to kick myself). Anyone have one available for purchase?
> >
> > Second question. The cable that I need to make here. Can anyone confirm
> I need to female IDC connectors on each side? (the tape drive and the QT13
> have male pins)?
> >
> > Thanks
> That reminds me I need to check to see how many QT13 boards I
> currently have and see if I have one to spare.
> This picture shows the SUN configuration female D-shell connectors
> with ribbon cables running to the two 50-pin Pertec interface
> connectors on the cache controller board:
> http://w2hx.com/x/VintageComp/Fujitsu-2444AC/0306192310.jpg
> If you remove those 'A' and 'B' ribbon cables then you just need a
> pair of 50-pin cables with female IDC connectors on one side, and if
> you are using a QT13 then female IDC connectors on the other side as
> well.
> You need to check the connector pinout tables in the 2444AC manual
> against the QT13 manual to see which connector on the 2444AC goes to
> which connector on the QT13 so you don't get the cables crossed. I
> forget without checking the manuals myself.

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