RTD’s Opto-isolated, relay and digital I/O boards feature a powerful combination of digital I/O resources. The featured isolated I/O channels can be used to safetly interface to control equiptment in the presence of high voltages, ground faults, and current loops which would damage non-isolated I/O. Opto-isolated digital inputs have programmable interrupt and strobe functions. Bits can be masked and inverted to generate hardware interrupts and an external strobe on an output connector, relieving the host PC from having to poll the board. This function is extremely useful when monitoring for specific conditions.

The relay modules can be used in applications such as AC or DC power circuit breaking, motor and actuator control or voltage level shifting. The relays can reliably switch voltages from TTL to voltages of 220VAC.

  • High volatage/high current digital I/O
  • Multiple input and output configurations
  • 5, 12, and 24 V opto-isolated input ranges
  • 30 VA, 8mA opto-isolated outputs
  • 60 V, 4 A MOSFET outputs
  • 60 VA switching capacity relays with voltages up to 240 VAC
  • Reverse-polarity protection
  • 1500 Vrms isolation on inputs
  • 1000 or 1500 Vrms isolation on outputs
  • High Reliability (HR): -40° to +85° C
  • DOS, Windows, and Linux drivers and example programs and source code
  • Optional rugged IDAN® enclosure system

RTD is a founder of the PC/104 Consortium and an ISO 9001 and AS9100 certified company. RTD designs its products to withstand -40 to +85 C operating temperatures and severe shock and vibrations which are indispensable for the most demanding industrial, aerospace, transport, and military applications. From low power to high-end performance, RTD's product offering is the broadest in the industry. RTD specializes in the research, design, and manufacturing of PC/104, PC/104-Plus, PCI-104, PCIe/104 and PCI/104-Express compliant modules and systems, addressing intelligent process control, data acquisition and processing, adaptive signal processing, video capture, telematics, wireless, fieldbus, and power supply technologies. RTD's rugged packaging and system solutions include the IDAN®, HiDAN®, HiDANplus®, and FieldPad® and are available in standard and custom designs. Add in drivers, developed software environments, and example programs, RTD provides a clear one-stop, fast development experience with long lasting support for the embedded customer. All of RTD's products are manufactured in the U.S.A. at our facility and have seen use on every continent, in many oceans, at various levels of our atmosphere, and in space. A State of the art Automated Surface Mount Assembly System using X-Ray technology for inspection of BGA components along with Humidity Controlled Environmental Chambers highlights the effort taken to ensure a quality product.



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