Relio R3


Relio R3 - Intel Atom N2800 1.8GHz 19" 3U Rack-mount PC with 7" LCD touch screen, 4GB DDR3 memory, PCI-Express and SeaRAQ I/O expansion slots


CE is a mandatory standard for products on the market in the European Economic Area. By CE marking a product, the manufacturer ensures that the item meets the essential safety requirements set out in the applicable CE directive.


These products use heatsink, heatpipe and extrusion technology to dissipate the heat generated by the system rather than using traditional fans thus improving system reliability and longevity.

FCC Approved

The Federal Communications Commission (FCC) is an independent agency of the United States government that sets standards and governs the testing of conducted and radiated emissions such as EMI.


This product supports Linux based kernels. See product datasheet and manual for a list of compatible Linux kernels and distributions (for development and pre-sales support please contact our technical sales team).


This product fully adheres to the Restriction of Hazardous Substances Directive 2002/95/EC, RoHS for short.  The directive covers the restriction of use of certain hazardous substances in electrical and electronic equipment and was adopted in February 2003 by the European Union.


Underwriters Laboratories (UL) is an independent product safety certification organisation based in the United States. UL develops standards for products, materials, components, assemblies, tool and equipment, mainly dealing with product safety.

Wide Voltage

These devices and systems have been designed to accept a wide voltage DC power input. This feature is desirable in the industrial market where a fixed voltage level or mains AC power cannot be guaranteed.

Relio R3 3U rack PC
Relio R3Relio R3

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Relio R3

Intel Atom N2800 1.8GHz 19" 3U Rack-mount PC with 7" LCD touch screen, 4GB DDR3 memory, PCI-Express and SeaRAQ I/O expansion slots


SeaRAQ 8x Channel-to-Channel Isolated A/D Inputs Expansion Module


SeaRAQ 6x Isolated RTD Analog Inputs Expansion Module


SeaRAQ 6x Isolated Thermocouple Inputs (Type E, J, or K) Expansion Module


SeaRAQ 8x Channel Isolated 4-20 mA Current Loop Transmitter Outputs Expansion Module


SeaRAQ 16x Isolated Digital Inputs (3V to 30V DC) Expansion Module


SeaRAQ 16x Isolated Digital Inputs (0V to 132V AC) Expansion Module


SeaRAQ 16x Isolated Form A Relay Outputs Expansion Module


SeaRAQ 8x Isolated Form A Relay Outputs Expansion Module


DB9 Female to DB9 Male Extension Cable, 72" in Length


DB9 Female to DB9 Female Null Modem Cable, 10' in Length


Terminal Block - DB9 Female to 9 Screw Terminals


Terminal Block Kit - TB05 + CA127 Cable


DB9 Female to RJ45 Modular Adapter


DB9 Male to DB9 Female Low Profile Null Modem Adapter

* Lead time is indicative and is subject to change at time of ordering. Next business day delivery on in-stock products only (when ordered before 3pm).
** Contact us for quantity or project pricing.
† Additional delivery charge may be incurred for certain postcodes (calculated at checkout)
VELA Rack - Powerful Industrial PCs, configured for your industry
Combining 38 years of Advantech's world-leading industrial computing development with 28 years of Impulse's industrial computing capabilities, the new VELA Rack range of configurable rack PC systems has the pedigree to support the most critical applications.
Learn about VELA Rack

Relio R3 overview

  • 3U 19" rack-mount enclosure with powder-coated finish
  • Silent solid-state, fanless design with no moving parts
  • COM Express Type 6 Module supports Intel Atom processor
  • 4GB DDR3 1066MHz memory (8GB maximum)
  • Internal 2.5" drive bay
  • 1x DisplayPort
  • 1x RS-485 and 2x RS-232 ports
  • Dual Gigabit Ethernet ports
  • 4x USB2.0 ports
  • 18x SeaRAQ expansion slots for optional analog, digital and serial I/O
  • 1x PCI Express [x1] half-length expansion slot
  • Integrated graphics supporting DirectX and OpenGL 3.x
  • Supports ACPI power management
  • Supports Windows or Linux operating systems
  • Wide 18V to 36V DC power input
  • 0°C to +50°C operating temperature
The Relio R3 is a solid-state 3U rack-mount 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 DDR3 memory. The fanless system features low power consumption and an operating temperature range of 0°C to +50°C. Standard features include 2x Gigabit Ethernet, 4x SeaLATCH locking USB2.0 ports, 3x serial ports, DisplayPort video and audio interfaces. The system includes a 7” LCD touch screen on the front panel for a convenient operator interface.

With a total of 18x 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 and measurement and HMI applications.

Impulse is the exclusive UK distributor of Sealevel products and can supply you the Relio R3 along with a wide range of industrial computing and communication products.

For more information about the Relio R3 rack PC please contact our technical sales team on +44 (0)1782 337 800, or alternatively submit an enquiry.
Enquire about the Relio R3
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STOCK ALERT!Rack PCs, Embedded Box PCs, SBCs, and IIoT devices in stock and ready to ship.
The support received from Impulse on new solutions is greatly appreciated and highly recommended.
Sep 2021
+44(0)1782 337 800