DTK Computers Technical Information Sheet for PII-153 S=shorted, O=open DIP switch 1=on 0=off Light Pen Port JP2:Overstrike Setting o1 <1>Light Pen Input 1-2 S Double width font o2 <2> Not used 2-3 S Single width font o3 <3> Light pen switch <4> Chassis ground <5> +5 volts <6> +12 volts JP1:Parallel Port Address oo1 1 S LPT1 (3BC~3BE) oo2 2 S LPT1 (378~37F) oo3 3 D LPT2 (278~27F)