On Nov 6, 18:41, Lawrence LeMay wrote:
> Well, I have a 1 Mbyte MOS RAM board, M3104 8-line asyncronous
multiplexor
> with DMA (can these be used as normal serial ports, or do I need more
> external hardware?)
It's a DHV11. You need the "cabinet kit" which is essentially a (pair of?)
panels with 4(?) DB25s on each, with a ribbon cable to connect them to the
Berg connector on the card. No additional elecronics, just wires.
> a M7546 TMSCP controller for TK50 tape unit (which
> I dont have), and the M7555 MFM Winchester & Floppy disk controller.
That last is an RQDX3, MSCP controller. What version are the ROMs, out of
interest?
> I'm assuming I just connect a terminal to the main console serial port,
> and hope someone left me an operating system since I have no peripherals
> at this time...
Yes. One of the switches sets the baud rate, default is 9600 8N1.
Depending on which boot ROMs are on the card, you should see some sort of
diagnostic display, and it may or may bot try to autoboot. If you tell us
the ROM numbers (something like 23-238E5 or just 238E5) we can probably
tell you which version it is. I have a copy of the MicroPDP-11 handbook
somewhere, I can probably look it up.
--
Pete Peter Turnbull
Network Manager
University of York
Received on Thu Nov 08 2001 - 17:07:17 GMT