DL11 configuration for pdp11gui

Fritz Mueller fritzm at fritzm.org
Mon Jun 27 10:59:08 CDT 2016

On 06/27/2016 05:34 AM, Paul Koning wrote:
> How high was "too high"? The RS232 standard rules for allowed output 
> voltages are surprisingly lenient (3 to 15 volts, positive or negative 
> for space and mark respectively).

Mark (not space) was around +3V, ha :-)  I have no idea how the VT52 was 
making sense of that, but it was, quite reliably.


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