> -----Original Message----- > From: Douglas Taylor via cctalk <cctalk@classiccmp.org> > Sent: Wednesday, June 12, 2024 10:22 PM > To: General Discussion: On-Topic and Off-Topic Posts <cctalk@classiccmp.org> > Cc: Douglas Taylor <dj.tayl...@comcast.net> > Subject: [cctalk] Dilog Multifunction MQ-100 board > > Hopefully I can find someone who has a manual for this qbus board, if not, > does > anyone have experience with this board? > > Summary: > > It's a dual width qbus board with 1 DLV11-J port, 32KW Boot room, on board > LTC circuit and has a 16 pin connector to attach to a front panel. I dumped > the > prom's and you can see them over on the VCF Forum/DEC page. I used > PDP11GUI to probe the I/O space and it looks similar to a MXV11-B boot board, > with the addition of a serial port, LTC and front panel control. The board > has > copyright 1986 so it's not that old. > > I guess a front panel would have; LED for RUN, LED for DC OK, a switch for > HALT, switch for RESTART and possibly a switch to disable LTC. The board has > a > couple of 4N25 optocouplers and what signals would need isolation?
Its common to use OPTO couplers on current loop interfaces, so perhaps the DLV11-J type port but with current loop. > > Yes, I would like to use this put together a working qbus PDP11 using either > 11/23 or 11/73 CPU, just for fun. > > Doug Dave
