Single Sided 3 Axis Opto Isolated Interface PCB
What this board does:
Simply put, utilizing an off the shelf PC parallel printer cable, this board handles quick and neat connections for up to
3 of the single axis driver boards found on this website via a simple 10 pin IDC cable for each axis. In addition:
1. It also has connections for limit and home switches, filtering and LED's for those switches.
2. A TIP122 transistor driver that can be used to control a relay or ssr (recommended) for spindle control.
3. Onboard 5VDC regulator (for the PC side) to be used with a 9 to 12vdc wall transformer (wall wart :-)
4. A transistor latch that can be hooked to a simple spst Estop Switch and a simple spst Estop reset switch.
5. 5V must be jumpered from each motor driver board to supply the opto isolator. Any resistor pullups on the Step,
Direction, or enable lines will conflict with the 3.3K pullups on this board and need to be removed from the motor
driver board
6. Opto Isolators TLP624 series, PC817 series, H11A817 series, PS2503 series. The TLP624 series is the fastest of
of the 4 series listed.
Dmitry Shilov (Stroke) Board
Last updated 9/12/2005
