Noel;
Yep, that's the one. I never thought one would be on ebay. Imagine
searching by the part number....
Doug
On 7/26/2019 11:23 AM, Noel Chiappa via cctalk wrote:
> From: Douglas Taylor
> I'm putting together a MicroPDP-11/23 in a BA23 box. Have the M8189 CPU
> quad width board and the bulkhead cabinet kit .. how the cabling goes
> from the M8189 CPU board to the bulkhead cabinet kit?
I _think_ this might be the cable you need:
https://www.ebay.com/itm/CK-KDF11-CABLE-ONLY-P-N-70-20451-1C/151622708242
but I'm not familiar with the cab kit, so I'm not sure.
> The 10 pin connectors on the CPU board don't seem to be keyed ...
> Is there something that gives the orientation away?
These 10 pin EIA connectors (same in the DLV11-J, KDJ11-B, etc) are keyed,
with a missing pin. DEC cables for these connectors have a plug in the
matching hole.
> From: Glen Slick
> In the photos that I have found of the M8189 console panel there is a
> '1' just above the top right of the 20-pin connector indicating Pin 1.
> A trace can be seen leading from that pin to the baud rate circuitry.
> So that pin would go to Pin 1 of one of the 10-pin connectors on the
M8189.
Y'all love to re-invent the wheel, I see:
http://gunkies.org/wiki/DEC_asynchronous_serial_line_pinout#10_pin_header
I should check to see if the KDJ11-B has the same external baud rate
selection support, and if so, update the page to add it.
Oh, that's the other way to tell the orientation, with non-flat-cable cables;
with the loopback jumper on pins 7&9.
Noel
