From chris_doran@postmaster.co.uk Tue Jan 28 13:08:34 2003 Newsgroups: comp.sys.dec, comp.sys.dec.micro, alt.sys.pdp11, vmsnet.pdp-11 References: <948f0720.0211241331.604dbc82@posting.google.com> Message-ID: <948f0720.0211250805.22edfd71@posting.google.com> Organization: http://groups.google.com/ Date: 25 Nov 2002 08:05:07 -0800 From: Chris Doran Subject: Re: Micro PDP-11 KDF11-B console pinout chris_doran@postmaster.co.uk (Chris Doran) wrote in message news:<948f0720.0211241331.604dbc82@posting.google.com>... > toby@telegraphics.com.au (Toby Thain) wrote in message news:... > > > I'm bringing a Micro PDP-11 (BA23) back to life but it lacks the > > cabinet kit for the onboard serial ports, so I want to hook a serial > > line up to the KDF11-B board directly and need to know the SLU pinout > > (I've set the nearby jumpers for onboard clocking). > > This is the plug from the front, i.e. looking down the holes. Numbers > are pins on the male DB25 socket on the distribution panel: > > 2 1&7 > +-----+---+---------+ > | o o o o o | > | o o key o o | > +-+---+-------+---+-+ > 1&7 1&7 3 `---[850 ohms]--- 20 > > Pins 4 and 6 are connected in the DB25 socket. For most DEC hardware > you should only need 2, 3, and 7. Swap 2 and 3 if it doesn't work. Correction: Now that I've seen it in daylight, that's a _7_50 ohm resistor. I thought 8 was odd, but purple on a grey body doesn't make for easy reading :( Chris