Hi. I've got a cnc laser from the late 80's and I'm trying to retrofit it to use mach3. What concerns me is the 12 volt pin. If I plug this into my parallel port will this voltage fry my mother board? The pinout is as follows:
MOVER-MPG Reference (1987-1990)
Signal H4 DB25F Pin
Step1-5
Step2-6
Step3-7
Step4-8
Dir1-18
Dir2-19
Dir3-20
Dir4-21
Device0-Enable 9
Device1-Enable 22
+12V-11
+5V-24
Ground, Logic Common-13,25
Signal H5 DB25M Pin
Limit1-19
Limit2-6
Limit3-18
Limit4-5
Limit5-17
Limit6-4
Limit7-16
Limit8-3
+12V-14
+5V-13
Ground, Logic Common-1,12