Installing UNIX Sixth Edition on Ersatz-11
See the external links below for detailed instructions which cover a range from the simplest ('I did it') to the most complex.
Controlling actual PDP-11s
assign tt1: com1: /mode:9600,n,8,2 /dtr:on /rts:on
in the Ersatz-11 configuration file; the DTR and RTS can probably be dispensed with, and the speed and parity will have to be adjusted for the particular interface on the PDP-11, but the 8 bit size is key.
One will want to cable the simulated PDP-11 as a DTE (DE-9S to DB-25P cables to do this are easily available on eBay, etc); one can then cable the actual PDP-11 as a DCE, or use a null modem if it is also wired as a DTE.
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