Overview.
This card has been designed to provide a flexible interface for CNC projects using parallel port control software. Proven implementation of buffering and optoisolation circuits provides for a quick and reliable solution This board is offered for users that do not need optoisolation for the output signals that go to the drivers, because they are using drivers that already have optoisolated inputs, such as the Geckodrive family of products.

Features

• IEEE 1284 Standard compatible Includes the circuitry recommended by the IEEE 1284 Level 1 standards for bidirectional parallel communications between personal computers and peripherals

• Buffered outputs. All inputs and outputs are buffered through the use of high speed and high power buffers. Each pins deliver 24 milliamps.

• The common terminal to pins 2-9 can be ground or +5vdc. The board has a jumper that allows you to select if the common terminal to pins 2-9 will carry a ground or +5vdc. So if you are connecting encoders or proximity switches, you can select it to ground. If you are connecting Geckodrives or limit switches, you can set it to be +5vdc.

• External Enable Pin (EN). The board has a pin that allows you enable/disable all the outputs at once. The board requires +5vdc in the EN pin. If it is not present, it will send all the outputs to ground immediately. You can use this enable and disable your system manually, or you can install an external Safety Charge Pump or other external device.

Inputs can be set to work with pull-up or pull-down resistors. PDF Manual Basic Wiring Guide for Stepper Drivers Wiring E-Stop Wiring Limits Wiring a MPG Wiring E-Stop, EN Pin, and SCHP Sample XML Configuration File (Right Click/Save As) • Status LEDs on all inputs and output connections. No more guessing. You can SEE all your signals. Save valuable time and brainpower for cncing. • All inputs are outputs are tied to pull-down resistors. Pins are never in the air open to noise. If you leave a pin in the air you will get a LOW or 0. If you input a ground you will get a LOW and a +3.3 or+ 5 vdc signal will deliver a HI. • Works directly with popular CNC hardware and software. Such as Geckodrive, DeskCNC or Rutex, and parallel port control software, such as mach2, Linux EMC, TurboCNC, CNCPlayer, CNCZeus and others. (Not all tested)   BREAKOUT BOARD COMPARISON CHART

$41.60