Part#: R3-Config

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Relio R3

Configurable Relio R3 Industrial 3U Rackmount Computer

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Operating System Integration



The Relio R3 is a solid-state 3U rackmount computer designed for applications requiring high reliability, maximum I/O expansion, scalable processing and a long product life cycle.

Building on the advantages of COM Express architecture, the R3 features an Intel Atom® N2800 1.8GHz dual-core processor with 4GB RAM. The system requires low power consumption while operating fanless over a wide operating temperature range of 0-50C. Standard features include dual Gigabit Ethernet, four SeaLATCH locking USB 2.0 ports, three serial ports, DisplayPort video and audio interfaces. The system includes a 7” LCD touchscreen on the front panel for a convenient operator interface.

With a total of 18 SeaRAQ™ I/O expansion slots, the R3 offers unprecedented expansion capabilities supporting a variety of real-world analog I/O configurations such as A/D inputs, 4-20mA outputs, 0-20mA inputs, thermocouples and RTD inputs. Optically isolated inputs, relay outputs and additional serial interfaces are also available. The system offers one PCI Express slot compatible with any half-length PCIe x1 board.

The Relio R3 operates from your choice of 2.5″ SATA solid-state disk (SSD) that can be integrated and preloaded with Microsoft Windows or Linux 32-bit operating systems. Operating from solid-state disk, the system is perfect for industrial and commercial rackmount environments including process control, test & measurement and HMI applications.

Extended temperature range and other options are available. If you have application specific requirements, call today to discuss a Sealevel custom COM Express solution.

Additional information

Weight 12.00 lbs
Dimensions 19.0 × 8.0 × 5.2 in
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System Features

  • • 3U rackmount enclosure with powder-coated finish
  • • Silent solid-state design with no fans or other moving parts
  • • Wide temperature operation from 0-50C ambient
  • • COM Express Type 6 Module supports Intel dual-core Atom processors
  • • Up to 4GB DDR3 RAM
  • • Internal 2.5″ drive bay is perfect for optional solid-state disk (SSD) applications
  • • Integrated graphics supporting DirectX and OpenGL 3.x
  • • Eighteen expansion slots for optional analog, digital and serial I/O
  • • One PCI Express x1 half-length expansion slot
  • • Supports ACPI power management

Enclosure Front

  • • Integrated 7” LCD touchscreen operator interface
  • • Stereo audio line-in and line-out via standard 1/8″ speaker connectors
  • • Two SeaLATCH locking USB 2.0 ports
  • • LED status indicators for power and disk activity
  • • On/Off power switch

Enclosure Rear

  • • Eighteen I/O expansion slots for optional analog, digital and serial I/O
  • • One PCI Express half-length x1 slot
  • • Two 10/100/1000BaseT RJ45 Gigabit Ethernet ports with status LEDs
  • • Two SeaLATCH locking USB 2.0 ports
  • • Three DB9M serial ports (COM1,2 = RS-232, COM3 = RS-485)
  • • One DisplayPort 1.1 digital video connector (supports optional active analog VGA adapters)
  • • 18-36 VDC power input via 4-pin removable terminal block

What’s In the Box?

  • • Relio R3 rackmount computer
  • • 100-240 VAC to 24 VDC @ 3.75 A, 90 Watt desktop power supply (Item# TR139), with attached Molex 39-01-2040 connector
  • • NEMA 5-15P US power cord, 72 inch length (Item# CA248)
  • • Optional cables and solid-state storage available as accessories


Manual: Relio R3


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