>From: pete_at_dunnington.u-net.com (Pete Turnbull)
>
>Um, by your numbering scheme, 7 and 8 are H and J, not E and F.
>
Yup
>> 40 pin connector is numbered
>>
>> 1 (A) 39 (UU)
>> 2 (B) 40 (VV)
>
>ObNitpick: That's the reverse of the conventional numbering; Berg
>connectors with letters have the red stripe at the A end, which is on the
>left of the pin header (looking into the pins) while all other headers
>which are numbered have pin 1 on the right.
Yup, how about
Looking into pins of 40 pin male connector numbering is
2 (A) 40 (UU)
1 (B) 39 (VU)
I think both the numbers are letters were otherwise correct, just the
summary diagram was wrong.
I have put this information on my search page,
http://www.pdp8.net/pdp8cgi/query_docs/view.pl?table=pdp8docs&id=146
I also added the VT78 to RX01/RX02 cable pinout
This is the VT78 to RX01/RX02 BC80D-5K cable pinout (from buzzing out mine)
Pins 1-9 of the DB25 go to pins 1-9 of the DB37
Pins 14-23 of the DB25 go to pins 20-28 of the DB37
Pin 25 of the DB25 is attached to the cable shield which is grounded
at the other end with a wire to one of the mounting screw on the DB37.
David Gesswein
http://www.pdp8.net/ -- Old computers with blinkenlights
Received on Fri Dec 29 2000 - 14:46:48 GMT