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

Glen Slick glen.slick at gmail.com
Thu Apr 11 20:10:46 CDT 2019

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:


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

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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