DEC backplane power connectors

[Tom Uban]

The connector shells I ordered arrived and fit my application properly.

The part numbers are:
  Digikey A106239-ND, TE Connectivity AMP Connectors 1-171196-0, CONN PLUG 6POS MATE-N-LOK NATRL
  Digikey A1427-ND, TE Connectivity AMP Connectors 1-480323-0, CONN PLUG 15 POS MATE-N-LOK

See attached picture or ASCII representation below:

     +------------+
     |            ++
     |  0   0   0  |
+-+  |             |  +-+
| |  |  0   0   0  |  | |
+-+  |             |  +-+
     |  0   0   0  |
     |            ++
     +------------+

     +--------------------+
     |                    ++
     |  0   0   0   0   0  |
+-+  |                     |  +-+
| |  |  0   0   0   0   0  |  | |
+-+  |                     |  +-+
     |  0   0   0   0   0  |
     |                    ++
     +--------------------+

Looking at the TE.com catalog, the picture for 1-480273-0 does not match my DD11-DF connector,
looking like this:

     +------------+
     |            |
     |  0   0   0 |
+-+  |            ++  +-+
| |  |  0   0   0  |  | |
+-+  |            ++  +-+
     |  0   0   0 |
     |            |
     +------------+

Best,

--tom

On 1/28/21 1:39 PM, Noel Chiappa wrote:
>     > I have a feeling there are two shell designs for the 6 pin.
>
> Like I said, I have a vague memory of another keying design (I think it used a
> ridge running parallel to the direction of insertion), but I don't think it's
> from any DEC gear. There is definitely yet _another_ keying design, with
> triangular sawteeth, but again, I don't think any DEC gear used that.
>
>     > The one on my DD11-DF that I want to mate has detents in the corners
>     > while the catalog picture for the 6 pin on your part number shows a
>     > square in the center of the side.
>
> Yes, the ones on the DD11-[C,D] (female shell, male pins) have 2 filled-in
> corners, and the ones on the harness into which they plug (male shell, female
> pins) have both the cutout corners (to match the filled-in corners on the
> female shells), _and_ "a square in the center of the side".
>
> As I said, I had verified that my female shells plugged into the male shells
> on an -11/40 harness; I just went and checked, those males have the exact
> identical shape to the ones I got (with the listed part number), including
> both cutout corners and the square in the center of the side. (Oddly enough,
> the 15-pin male shells used in that generation of DEC power connectors do not
> have the square in the center of the side, just the cutout corners.)
>
>     Noel
>