Parallel Port Interface with Relays Card Kit 12V

The Ocean Controls Parallel Port Breakout Board for CNC is a parallel (printer) port hardware interface designed for providing Stepper Motor control signals, and incorporates 2 relays for switching devices on and off.The main circuitry consists of two buffer IC's which boost the weak parallel port signals to a level high enough to drive Stepper Motor Driver Circuits which use Opto-Couplers.With the safety charge pump option, the board also includes a microcontroller which monitors the CNC software and turns off the relays and output signals when the charge pump signal from the CNC software is lost.The Breakout Board provides 9 buffered output signals to control up to 4 Stepper Motor Drivers, 5 digital inputs designed for use as limit switch or e-stop inputs, 2 Relay Outputs to control spindles, coolant or vacuums, and a spare output connected directly to the port (available only when the charge pump option is disable). Specifications:Power Supply:12V to 24VDCCurrent Consumption:<100mAOutput:a regulated 5VDC output is available3 Extra IO for further Expansion4 Axis CNC Breakout BoardStep, Direction and Limit Switch Connections for Each Axis2 Relays with indicator LED’s for Spindle, Coolant or Vacuum ControlCharge Pump Safety OptionOperating Temperature: -20 to 70°CDimensions: 85Wx88Lx25H (mm)

• Parallel Port Interface with Relays Card Kit
• Our Parallel Port Relay card allows you to control stepper motor operations from your parallel port. It uses a 74HC245 buffer IC to provide protection for your PCs parallel port and provide enough current drive for turning on and off opto-isolator inputs.
• Can be connected to our KTA-191, KTA-196 and KTA-179 stepper motor driver cards.
• Skill Level: Assembled and Tested