Parallel Port Relay Switch Board

Parallel Port Relay Switch Board Do you have an old PC lying around the house which absolutely no one wants? Then you can convert it into a dedicated controller. Communicate with the real world via the parallel printer port on your PC. Simply connect printer cable from your computer to the connector on relay board. There are 8 relays each capable of switching 12VDC/10A or 240VAC/5A. Each relay has an LED to indicate when it is operated. We provide two sets of complete, stand-alone software to control the relays: one works under DOS so you can write your own batch files to control individual relays, the other under Windows 9x/2000/ME/XP. The kit is a boon to the Science Fair project, laboratory experimenter and so on.


  • Requires 12VDC Power Supply.
    (Need a Power Supply?)
  • Relay has Normally Open and Normally Closed Contacts rated for voltages 28VDC @ 10A, 125VAC @ 10A, or 250VAC @ 7Amps.
  • Dos / Windows Software Download below.
  • L: 5-1/2" W: 4-3/8" H: 1-1/2"

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