an affiliate of Practical Micro Design, Inc.

Products for CNC and motion control applications since 1998.
Design, manufacturing, and support based in the USA.

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PMDX-111 Parallel Port Monitor


Model PMDX-111

Parallel Port Monitor


Accessory for monitoring parallel port signals.








  • Individual LEDs to monitor all 17 active parallel port signals
  • All signals buffered to minimize loading
  • DB-25 female, DB-25 male, and ribbon cable interfaces
  • All signals connected in parallel on all connectors, thus allowing signals to pass through the board for any cable combination
  • Selectable edge/pulse detector that can monitor any one of the 17 signals
  • Dedicated Pin 17 pulse detector for a charge pump signal monitor
  • Each signal has a 10K ohm pull down resistor to assure that open signals present as a logic "Low"
  • Accepts AC or DC power from 6 to 12 volts
  • Can also be powered from a USB port
  • Excellent aid for testing, training, and experimentation.

Download the user's manual in PDF format here (revision 1.0, 16 Jan 2014, 104K).

The PMDX-111 is priced at $39.00

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