What are the key features of the EMS-ARH modular system?

The EMS-ARH is a modular system with Intel Core Ultra Series 2 (Meteor Lake-H) processors and Intel Arc GPU + NPU, 2 x DDR5 6400 MT/s SO-DIMM up to 64GB, dTPM 2.0, optional iAMT, an IET modular interface, triple M.2 (Key-B/E/M, NVMe Gen4 x4), 2 x RS-232/422/485, 8-bit GPIO, dual LAN, DP++ and dual HDMI.

Which processors does the EMS-ARH support?

It supports Intel Core Ultra Series 2 (Meteor Lake-H) — Core Ultra 7 255H and Core Ultra 5 225H — with integrated Arc graphics and an NPU for on-device AI acceleration.

Is the EMS-ARH suitable for edge AI?

Yes. The Core Ultra Series 2 platform combines CPU, Arc GPU, and a dedicated NPU, making the EMS-ARH well suited to edge AI inference, machine vision, and analytics.

How much memory does the EMS-ARH support?

It has two SO-DIMM sockets supporting up to 64GB DDR5 at 6400 MT/s, providing ample bandwidth for AI and vision workloads.

What is the IET interface on the EMS-ARH?

IET is Avalue's modular expansion interface, exposing 1 x DDI, 4 x PCIe Gen4 x1, 3 x USB 2.0, 1 x SMBus and eSPI — enabling tailored I/O or function modules for modular system builds.

What storage and expansion does the EMS-ARH offer?

It provides M.2 Key-M 2280 NVMe (PCIe Gen4 x4), M.2 Key-B 2242 SATA, M.2 Key-E 2230 for Wi-Fi/BT, plus the IET modular interface; some M.2 slots are shared with expansion.

Does the EMS-ARH support security and remote management?

Yes. It includes discrete TPM 2.0 (dTPM) for hardware security, and optional Intel iAMT on selected SKUs for out-of-band remote management.

What I/O does the EMS-ARH provide?

Front: power/reset buttons, status LEDs, 2 x USB 2.0, 2 x RS-232/422/485, 8-bit GPIO, antennas. Rear: 4 x USB 3.2 Gen1, dual LAN, Mic-in/Line-out, DP++, 2 x HDMI, terminal-block power.

What power input does the EMS-ARH use?

Power is via a 3-pin terminal block (V+, V-, GND) with a 2-pin terminal block for wire-control power on/off — robust for industrial cabinet wiring.

What applications is the EMS-ARH best suited for?

With Core Ultra Series 2 AI compute, Arc graphics, modular IET expansion, and rich industrial I/O, the EMS-ARH targets edge AI, machine vision, modular control systems, and high-performance industrial computing.

Avalue · Computing System

EMS-ARH

Data Sheet

*Price on request. Contact us for a quote.

Manufacturer: Avalue

Highlights

Intel Core Ultra (Series 2, Meteor Lake-H): Ultra 7 255H / Ultra 5 225H
Integrated Intel Arc GPU + NPU (AI acceleration)
2 x DDR5 6400 MT/s SO-DIMM, up to 64GB
dTPM 2.0; optional Intel iAMT
IET modular interface (DDI, 4x PCIe Gen4x1, USB 2.0, SMBus, eSPI)
Triple M.2 (Key-B/E/M, NVMe Gen4 x4)
2 x COM RS-232/422/485, 8-bit GPIO
4 x USB 3.2 Gen1, dual LAN, DP++ + 2 x HDMI
Terminal-block power input, EMS-ARH SBC, Windows / Linux

Product Description

The Avalue EMS-ARH is a modular computing system powered by Intel Core Ultra processors (Series 2, Meteor Lake-H) — Core Ultra 7 255H / Ultra 5 225H — with integrated Intel Arc GPU and NPU for AI-accelerated edge workloads.

Dual SO-DIMM sockets support up to 64GB DDR5 6400 MT/s, with dTPM 2.0 and optional Intel iAMT for secure, manageable deployment based on the EMS-ARH SBC.

Its IET modular interface (DDI, 4 x PCIe Gen4 x1, USB 2.0, SMBus, eSPI) plus triple M.2 (Key-B/E/M, NVMe Gen4 x4) make it highly expandable.

The EMS-ARH offers 2 x COM RS-232/422/485, 8-bit GPIO, four rear USB 3.2 Gen1, dual LAN, DP++ and dual HDMI, terminal-block power input, and rich LED/antenna provisioning — well suited to AI vision, machine control, and modular edge systems running Windows or Linux.

Technical Specifications

Processor

Intel® Core™ Ultra processors (Series 2), Meteor Lake-H

Intel® Core™ Ultra 7 Processor 255H

Intel® Core™ Ultra 5 Processor 225H

System Memory

2 x 262-pin SODIMM socket Max. up to 64GB DDR5 6400 MT/s

BIOS Information

AMI uEFI BIOS 256 Mbit SPI Flash ROM

Watchdog Timer

H/W Reset, 1sec. ~ 65535sec.

H/W Status Monitor

CPU & system temperature monitoring and Voltages monitoring

TPM

dTPM 2.0

iAMT

Selected SKUs

SBC

EMS-ARH

M.2

1 x M.2 Key-B 2242/3042/3052 (SATA3 / PCIe Gen4x1 / USB3.2 Gen2) with SIM slot (internal)

1 x M.2 Key-E 2230 for Wi-Fi & BT Module (USB2.0 / PCIe Gen4x1)

1 x M.2 Key-M 2280 (PCIe Gen4x4)

IET

1 x IET interface (1 x DDI, 4 x PCIe Gen4x1, 3 x USB2.0, 1 x SMBus, eSPI)

M.2

1 x M.2 Key-M 2280 (PCIe Gen4x4), support NVMe (share with expansion slot)

1 x M.2 Key-B 2242, support SATA (share with expansion slot)

Power Button

1 x Push Button for Power on/off

Reset Button

1 x Push Button for Reset

LED Indicator

1 x Power LED (Blue)

1 x Storage LED (Yellow)

1 x LTE LED (Green)

1 x Wifi LED (Green)

USB

2 x USB2.0

COM Port

2 x COM RS232/422/485 (BIOS & Jumper)

Digital I/O

1 x 8-bit GPIO (DB9)

Wire-Control Power On/Off

1 x 2-Pin Terminal Block

Antenna

2 x Antenna with dust cover

USB

4 x USB 3.2 Gen.1 (5Gbp/s)(w/ USB 2.0)

LAN Port

2 x RJ-45

Audio

Mic-In, Line-Out

DP

1 x DP++

HDMI

2 x HDMI

Antenna

2 x Antenna with dust cover

AC/DC Input

1 x 3-Pin Terminal Block (V+. V-, GND)

Antenna

2 x Antenna with dust cover

Antenna

2 x Antenna with dust cover

Graphic Chipset

Intel® Arc™ GPU

Resolution

DP++: 4096x2304 @ 60Hz

HDMI: Max. resolution 4096x2304 @ 60Hz

Audio Codec

Realtek ALC888S HD codec

LAN Chipset

2 x Intel I226-IT

Specification

2 x 10/100/1000/2.5G GbE compatible

Voltage Input Spec.

DC in typical 12/24V (+12V ~ +36V), wide voltage single power input

TVS component for surge protection

Reverse current/voltage protection(Max. Currency: 13A)

Voltage Input Connector

3-Pin Terminal Block

ACPI

Single power ATX Support S0, S3, S4, S5

ACPI 5.0 Compliant

Power Mode

AT/ATX (ATX is default setting)

OS

Win 10 / Win 11/ Linux

Certification Information

CE, FCC Class A

Operating Temp.

-40°C ~ 60°C (w/SSD) ambient w/ air flow

Storage Temp.

-30°C ~ 70°C (-22°F ~ 158°F)

Operating Humidity

40°C @ 95% Relative Humidity, Non-condensing

Dimension (W x L x H)

240mm x 150mm x 59 mm (Standard)

240mm x 150mm x 85 mm (w/ IET module)

Weight

2.3 kg (System)

3.1 kg (w_Package)

Vibration Test

With SSD : 2Grms, IEC 60068-2-64, Random, 5 ~ 500Hz, 0.5hr/axis

Shock Test

With SSD : 55Grms, IEC 60068-2-27, Half Sine, 11ms

IP Rating

IP 50

Mounting Kit

Wall mount kit (standard)

Din rail kit (optional)

What is EMS-ARH?

The EMS-ARH is a computing system manufactured by Avalue, designed specifically for modular-computing-system applications. The Avalue EMS-ARH is a modular computing system powered by Intel Core Ultra processors (Series 2, Meteor Lake-H) — Core Ultra 7 255H / Ultra 5 225H — with integrated Intel Arc GPU and NPU for AI-accelerated edge workloads. Dual SO-DIMM sockets support up to 64GB DDR5 6400 MT/s, with dTPM 2.0 and optional Intel iAMT for secure, manageable deployment based on the EMS-ARH SBC. Its IET modular interface (DDI, 4 x PCIe Gen4 x1, USB 2.0, SMBus, eSPI) plus triple M.2 (Key-B/E/M, NVMe Gen4 x4) make it highly expandable. The EMS-ARH offers 2 x COM RS-232/422/485, 8-bit GPIO, four rear USB 3.2 Gen1, dual LAN, DP++ and dual HDMI, terminal-block power input, and rich LED/antenna provisioning — well suited to AI vision, machine control, and modular edge systems running Windows or Linux.

Key Features & Benefits

Intel Core Ultra (Series 2, Meteor Lake-H): Ultra 7 255H / Ultra 5 225H
Integrated Intel Arc GPU + NPU (AI acceleration)
2 x DDR5 6400 MT/s SO-DIMM, up to 64GB
dTPM 2.0; optional Intel iAMT
IET modular interface (DDI, 4x PCIe Gen4x1, USB 2.0, SMBus, eSPI)
Triple M.2 (Key-B/E/M, NVMe Gen4 x4)
2 x COM RS-232/422/485, 8-bit GPIO
4 x USB 3.2 Gen1, dual LAN, DP++ + 2 x HDMI
Terminal-block power input, EMS-ARH SBC, Windows / Linux

Applications & Use Cases

The EMS-ARH is ideal for various industrial automation applications:

DC-powered industrial installations and mobile applications
Legacy equipment integration and serial communication
High-performance computing and data processing tasks
Networked industrial systems and data communication
Peripheral device connectivity and data transfer
Memory-intensive applications and multitasking
Industrial computing and data processing
Edge computing and IoT applications

Frequently Asked Questions

A Modular Computing System is an industrial-grade computer designed with modular components that can be interchanged or expanded to customize the system for specific applications. These systems typically feature a base unit with core processing capabilities and standardized interfaces for connecting specialized modules that add functionality such as additional I/O, communication protocols, or industry-specific features. This modularity provides flexibility, scalability, and future-proofing while maintaining the reliability and ruggedness required for industrial environments.

Modular Computing Systems offer several advantages over fixed-configuration computers: customization for specific application requirements, ability to adapt to changing needs without replacing the entire system, simpler upgrades by replacing only specific modules, reduced spare parts inventory, greater longevity as new technologies can be integrated via module updates, streamlined maintenance, and better return on investment through scalability. These benefits make modular systems particularly valuable in industrial environments where requirements evolve and system longevity is important.

An IET (Interface Extension Technology) module is a specialized expansion module used in systems like the EMS series to add specific functionality to the base computing platform. These modules connect to a standardized interface on the main system and provide additional capabilities such as extra COM ports, LAN ports, PoE functionality, or specialized interfaces like CAN bus. IET modules are important because they allow a single base system to be customized for diverse applications by simply changing the module, providing flexibility while maintaining a standardized core platform.

Industries benefiting from modular computing systems include manufacturing (automation control, data collection), transportation (fleet management, railway systems), utilities (substation monitoring, grid control), healthcare (medical equipment integration), retail (point-of-sale, inventory management), building automation (HVAC, access control), defense, aerospace, and smart city infrastructure. Applications requiring customization, future expansion, diverse I/O needs, or adaptation to legacy systems particularly benefit from the flexibility and scalability these systems provide while maintaining industrial-grade reliability.

Wide temperature operation (typically -40°C to 70°C for industrial systems) ensures reliable functioning in non-climate-controlled industrial environments like factory floors, outdoor installations, vehicles, and remote locations. This capability is achieved through careful component selection, thermal design, and elimination of moving parts like fans. Systems with wide temperature ranges can be deployed in harsh conditions without requiring expensive climate control systems, reducing installation and operating costs while improving reliability.

Fanless design means the computer uses passive cooling techniques with heat sinks and thermal engineering instead of active cooling fans. This design is crucial for industrial computers because it eliminates a common point of failure (the fan motor), prevents dust and contaminant ingress that could clog filters and cause overheating, enables sealed enclosures for harsh environments, reduces maintenance requirements, eliminates fan noise, and improves overall system reliability and longevity in challenging industrial conditions with dust, vibration, and temperature fluctuations.

TPM (Trusted Platform Module) 2.0 is a specialized security chip that provides hardware-based encryption capabilities, secure storage for authentication credentials, and system integrity verification. In industrial systems, TPM helps protect sensitive data, secure communication channels, prevent unauthorized access or tampering, and ensure the integrity of control systems. As industrial systems become more connected, TPM provides essential security features to protect against cyber threats targeting critical infrastructure and manufacturing systems.

Vibration and shock resistance are critical for industrial computing systems operating in environments with mechanical disturbances from machinery, vehicles, or handling. Systems are tested to standards like IEC 60068-2-64 (vibration) and IEC 60068-2-27 (shock) to ensure they can withstand these forces without component failure or connection issues. This resilience is achieved through solid-state storage, elimination of moving parts, reinforced component mounting, specialized chassis design, and industrial-grade components, ensuring reliable operation in mechanically challenging environments.

When installing modular computing systems, consider proper thermal management (ensuring adequate airflow around the unit), environmental protection (enclosures appropriate for dust/moisture levels), power quality (stable power source with appropriate voltage and backup options), EMI/RFI isolation (distance from high-interference sources), physical security, accessibility for module swapping and maintenance, proper grounding, cable management (strain relief and protection), and compliance with local regulations and industry standards. Proper planning ensures reliable operation and maximizes the benefits of the system's modular nature.

For fanless modular systems, proper thermal management is crucial: ensure adequate clearance around all sides (typically 5-10cm minimum), avoid enclosing in sealed cabinets without ventilation, mount vertically if possible to enhance natural convection cooling, install away from other heat-generating equipment, consider ambient temperature fluctuations in the installation location, follow manufacturer's mounting recommendations (which often include heat-dissipating brackets), and periodically check for dust accumulation on cooling surfaces. For high-temperature environments, consider additional passive cooling solutions or environmental controls.

For modular computing systems, select a power supply with sufficient wattage for the base system plus all modules (with 20-30% headroom for future expansion), ensure voltage matching the system's input range (typically 9-36V DC for industrial systems), implement surge protection for industrial environments with electrical noise, consider redundant power options for critical applications, use proper wire gauge for current requirements, and potentially include an uninterruptible power supply (UPS) for protection against power outages. The power system should account for the maximum possible configuration with all modules installed.

Best practices for cable management with modular systems include using appropriate cable types for the industrial environment (shielded where necessary), implementing strain relief to prevent connector damage, securing cables to prevent accidental disconnection due to vibration, labeling cables clearly for easier maintenance and troubleshooting, maintaining minimum bend radii to prevent internal damage, using cable trays or conduits for protection, separating power and data cables to minimize interference, allowing sufficient service loops for module replacement without disconnecting cables, and ensuring accessibility for future changes while maintaining a neat installation.

If the system fails to power on, check that the power supply provides the correct voltage within the system's input range (typically 9-36V DC), ensure connections are secure at both the power supply and system, verify any power switches or ignition control settings are correctly configured, check for tripped circuit breakers or blown fuses, inspect for visible damage to power connectors, test with an alternative known-good power supply if available, verify the power LED indicators, and check if the system is in AT mode requiring a specific power signal. For vehicle-mounted systems, ensure the ignition control is properly connected.

For issues with modules or expansion capabilities, verify the module is properly seated and secured, check power cycling the system after confirming connections, ensure any module-specific drivers are installed, check BIOS/UEFI settings for module-related options, inspect for physical damage to connectors, try an alternative slot if available, test with a known-working module to verify slot functionality, check system logs for error messages, and consult module-specific documentation for jumper settings or configuration requirements. After replacing modules, validate that the system recognizes the change through device manager or system information utilities.

For overheating issues, ensure adequate clearance around the system (minimum 5-10cm on all sides), check that the installation position allows for proper convection cooling (typically vertical mounting), clean dust from the chassis and heat sink fins using compressed air (when powered off), verify ambient temperature is within specifications, check system temperature through monitoring utilities or BIOS, ensure any thermal interface materials are properly applied if the system has been serviced, examine CPU usage for processes causing excessive load, and consider adding auxiliary passive cooling or relocating the system to a cooler environment if persistent.

To diagnose communication issues, first identify the specific interface (COM, LAN, USB, etc.) experiencing problems. Check physical connections and cables for damage, verify device driver installation and updates, confirm port configuration settings (baud rate, parity, etc. for serial connections; IP settings for network), try alternative cables or ports to isolate the issue, check for resource conflicts in Device Manager, test with a known-working device, verify any required protocol converters or adapters are functioning, and use diagnostic tools appropriate to the interface type (terminal emulator for serial, ping/traceroute for network) to identify where communication fails.

Highlights

Product Description

Technical Specifications

System Information

Processor

System Memory

BIOS Information

Watchdog Timer

H/W Status Monitor

TPM

iAMT

SBC

Expansion

M.2

IET

Storage

M.2

Front I/O

Power Button

Reset Button

LED Indicator

USB

COM Port

Digital I/O

Wire-Control Power On/Off

Antenna

Rear I/O

USB

LAN Port

Audio

DP

HDMI

Antenna

AC/DC Input

Right I/O

Antenna

Left I/O

Antenna

Display

Graphic Chipset

Resolution

Audio

Audio Codec

Ethernet

LAN Chipset

Specification

Power Requirement

Voltage Input Spec.

Voltage Input Connector

ACPI

Power Mode

Software Support

OS

Certification

Certification Information

Mechanical & Environmental

Operating Temp.

Storage Temp.

Operating Humidity

Dimension (W x L x H)

Weight

Vibration Test

Shock Test

IP Rating

Mounting Kit

What is EMS-ARH?

Key Features & Benefits

Applications & Use Cases

Frequently Asked Questions