> That's on DECstation 5000 machines.   The 3100 has an integrated
> frame buffer.   The only way you can get it to work is to put a
> loopback on (I believe) the mouse connector.   The 5000/xx machines
> also have an integrated frame buffer, but on them all you have to do
> to get them to use the serial console is to unplug the keyboard.

Could someone who has one of these attack it with a multimeter and
send the results to the list? Last time I had to set up a [23]100 as
a server, it proved to be easier to just plug one of the horrible
hockeypuck mice that everyone hates into the mouse port.

Anthony