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

·   PULL-UP or PULL-DOWN selection for inputs. Includes jumpers to select the best input configuration for your application.

·   Buffered inputs and outputs. Outputs are buffered through the use of high speed and high current buffers allowing the card to output the signals without using the power from the parallel port. It can take the +3.3 or +5vdc signal from the parallel port and deliver solid +5vdc at 24 milliamps.

·   Output pins 1, 2, 3, 4, 5, 6, 7, 8, 9, 14, 16, 17.

·   Input pins 10, 11, 12, 13, 15.

·    The common terminal to pins 2-9 can be ground or +5vdc. Forget about grounding problems. Easily connect your pin by using your close by ground connection. No need to be an electronics expert to ground all your stuff. 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 to enable/disable all the outputs and inputs 11, 12, 13 and 15 at once. Only input 10 will be always enabled. The board requires +5vdc in the EN pin. If it is not present, it will send all the outputs to high impedance and the inputs to an high. You can use this to enable or disable the system manually, or you can install an external Safety Charge Pump or other external safety monitoring device.

·    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).

·   All TTL 5VDC signals. Interface directly with parallel port interface products and other CNC4PC cards. 5VDC (TTL) cards are very common among automation devices.

·    Screw-On connections for all terminals. You only have to screw-on the wires to make all your connections.