Refreshed COTS 48-Channel Digital I/O PC/104 Module with True 5V Digital I/O greatly extending life cycle

September 06, 2018


Refreshed COTS 48-Channel Digital I/O PC/104 Module with True 5V Digital I/O greatly extending life cycle

The updated TRACER-DIO-5VIO provides full 5 volt digital I/O voltage range to drive existing 5 volt relays, LEDs, CMOS and other loads. The TRACER-DIO-5VIO provides complete turn-off of low-side...



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MONONA, Wis., Sept 6, 2018 – Apex Embedded Systems LLC, an established leader in manufacturing PC/104 products, has launched an updated revision to its already successful Tracer digital I/O card greatly extending product life cycle. The Tracer is a Commercial-Off-The-Shelf (COTS) solution used in military, aerospace and industrial applications. The Tracer is available now at Apex Embedded Systems’ newly launched site (

The newly refreshed Tracer digital I/O PC/104 module is available in three I/O range flavors: full 5 volt I/O, safe 3.3 volt I/O and any I/O voltage range down to 1.85 volts is possible.

In a low voltage digital world many 5 volt devices still exist such as relays, solid state relays and LEDs. These devices require a full 5 volt swing which the Tracer seamlessly provides, especially for complete turn-off for low side driven devices. The full 5 volt swing allows direct drive of CMOS electronics that do not support TTL logic levels.

The 3.3 volt I/O range allows safe direct interfacing to 3.3 volt logic. In this range, 5 volts is never delivered to any output. All digital inputs are 5 volt tolerant.

It is possible to support other voltage ranges down to 1.85 volts, contact Apex for details.


• Legacy compatibility with many other PC/104 cards supporting i8255 and i8254 devices

• 32 mA current output capability per digital I/O

• Polarized connectors

• LED bus communication status

• Optional:

? 2mm I/O board-to-wire connectors (NEW)

? Breakout boards and ribbon cables available

? Tin mitigation for tin whisker avoidance (NEW)

? Firmware modifications targeting specific applications or adaptations

For more information or details on pricing, delivery and special options, please contact us or visit our website.

About Apex Embedded Systems LLC:

For over 15 years, Apex Embedded Systems LLC has been delivering PC104 products with headquarters in Monona, Wisconsin. All products are designed and manufactured in the United States, built to meet or exceed operating temperatures of -40oC to +85oC and all product are free of tantalum and electrolytic capacitors to avoid fire hazard and out-gassing. We provide product customization including firmware, tin mitigation, zero-ohm resistors in place of jumper shunts and legacy hardware upgrades significantly reducing system re-qualifications and extending production life cycles.

Media Contact:

Mike Ihm, Marketing

Phone: 608-256-0767

Email: [email protected]