12 Jul
2005
12 Jul
'05
8:03 p.m.
At 06:26 PM 7/12/2005, Joe R. wrote:
FIRST. This is NOT the panel that I was describing in my earlier
question about the KL8 stuff. This is an entirely different panel.
Does anyone recognize this panel? It's marked KL8-AA M8319 on the
back.
But it's marked by hand so that may not be accurate. It has two ribbon
cable connectors that I'm guessing connect to one or two M8319 cards. It
also has eight Mate-N-Lock connectors marked J2 through J5 and J7 through
J10. It also has eight DB-25M connectors marked P1 though P4 and P5
through
P8. Just as a guess I'd say that it can use the cables with the
Mate-N-Lock
connectors or cables with DB-25F connectors and it looks like it can
handle
a total of eight serial data lines. Anybody know if that's correct or what
machine it's for?
The KL8-A is a M8319 card. It's a four channel serial line controller.
It'll do RS232 or 20mA current loop, one line with modem control.
The patch panel (a H326) that you're describing connects to two M8319
cards for 8 serial lines. There were cables that provided four serial
outputs without the patch panel; apparently you have one or more of those.
Bitsavers has a copy of the KL8-A documentation.
http://www.bitsavers.org/pdf/dec/pdp8/EK-KL80A-OP-001_KL8-A_jan78.pdf
-Rick