Comprehensive Product Summary – ACS-2521 Fanless Embedded Engine Box

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### 1. Product Overview

Product Name: ACS-2521
Model Number: ACS-2521
Series: Fanless Embedded Engine Box Series
Article Number: ACS-2521
Manufacturer: Aplex Technology Inc.

The Aplex ACS-2521 is a compact, fanless embedded computing platform designed for industrial and commercial applications requiring reliable performance, low noise, and extended operational life. It integrates an Intel® Celeron® M 1 GHz processor and Intel® 852GM chipset, offering a balance between energy efficiency and processing capability. The system supports multiple I/O interfaces, dual PCI expansion slots, and flexible power input, making it suitable for automation, control, and embedded system integration.

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### 2. Key Features

- Fanless Design: Passive cooling architecture eliminates moving parts, reducing maintenance and improving reliability in harsh or dusty environments.
- Intel® Celeron® M 1 GHz Processor: Provides stable performance for embedded and industrial control applications.
- Intel® 852GM Chipset: Integrated graphics controller with VGA output for display connectivity.
- Memory Support: One DDR266 SO-DIMM socket supporting up to 1 GB SDRAM.
- Dual PCI Expansion Slots: Two standard PCI slots for additional interface cards, data acquisition modules, or communication controllers.
- Comprehensive I/O Connectivity:
- 3 × COM ports (serial interfaces)
- 4 × USB 2.0 ports
- 1 × 10/100 Mbps LAN port
- 1 × PS/2 keyboard and mouse port
- Audio I/O: Microphone, Line-in, Line-out
- Storage Options: Space for one 2.5" HDD and one slim-type CDRW drive.
- Wide DC Power Input Range: 11 VDC to 28 VDC input, with optional 230 VAC adapter for flexible deployment.
- Rugged Construction: Heavy-duty steel chassis ensures durability and mechanical stability.
- Compact Form Factor: Designed for wall-mount installation in space-constrained environments.
- Operating Temperature Range: 0 °C to 50 °C (operating), -10 °C to 75 °C (storage).
- Compliance: Meets CE and FCC Class A standards for electromagnetic compatibility and safety.

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### 3. Technical Specifications

Processor & Chipset:
- CPU: Intel® Celeron® M 1 GHz
- Chipset: Intel® 852GM

Memory:
- Type: DDR266 SO-DIMM SDRAM
- Maximum Capacity: 1 GB

Storage:
- 1 × 2.5" HDD bay
- 1 × Slim-type CDRW drive bay

Expansion Slots:
- 2 × PCI slots

I/O Interfaces:
- Serial Ports: 3 × COM
- USB Ports: 4 × USB 2.0
- LAN: 1 × 10/100 Mbps Ethernet
- PS/2: 1 × combined keyboard/mouse port
- Audio: 1 × Microphone, 1 × Line-in, 1 × Line-out
- VGA: Integrated Intel® 852GM graphics controller

Power Supply:
- Input Voltage: 11 VDC – 28 VDC
- Optional Adapter: 230 VAC external power adapter

Mechanical & Physical:
- Construction: Heavy-duty steel chassis
- Dimensions (main unit): 360 mm (W) × 210.5 mm (H) × 72 mm (D)
- Dimensions (with wall-mount kit): 410 mm (W) × 76 mm (H)
- Weight: 3.4 kg

Environmental Conditions:
- Operating Temperature: 0 °C – 50 °C
- Storage Temperature: -10 °C – 75 °C

Certifications:
- CE
- FCC Class A

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### 4. Functionality

The ACS-2521 functions as a compact embedded computing engine suitable for industrial automation, digital signage, machine control, and data acquisition systems. Its fanless design ensures silent operation and long-term reliability in environments where dust, vibration, or temperature fluctuations could affect traditional PC systems.

Operational Concept:
The system operates as a standalone embedded controller or as part of a networked automation infrastructure. The Intel® Celeron® M processor provides sufficient computational power for control logic, data processing, and communication tasks. The integrated Intel® 852GM graphics controller supports VGA output for local display or monitoring interfaces.

Use Cases and Applications:
- Industrial automation and process control
- Machine vision and inspection systems
- Kiosk and digital signage terminals
- Transportation and fleet management systems
- Data logging and monitoring stations
- Embedded control in manufacturing equipment

Compatibility:
The ACS-2521 supports standard PCI expansion cards, USB peripherals, and PS/2 input devices. It is compatible with common operating systems used in embedded and industrial environments, such as Windows Embedded, Linux, and other x86-based platforms.

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### 5. Components & Accessories

Included Components:
- ACS-2521 main unit (fanless embedded box)
- Wall-mount kit (optional or included depending on configuration)
- Power input terminal block or connector
- User documentation and installation guide

Optional Accessories:
- 230 VAC external power adapter
- 2.5" HDD or SSD (user-supplied)
- Slim-type CDRW or DVD drive
- PCI expansion cards (e.g., I/O, communication, or motion control modules)
- Mounting brackets or DIN-rail adapters (if required for specific installations)

Connectors and Interfaces:
- DC power input connector (11–28 VDC)
- VGA port for display connection
- RJ-45 Ethernet port for LAN connectivity
- USB Type-A ports (4 × USB 2.0)
- DB9 connectors for COM ports
- PS/2 mini-DIN connector for keyboard/mouse
- 3.5 mm audio jacks for Mic, Line-in, and Line-out

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### 6. Installation & Setup

Power Requirements:
The system operates on a DC power input range of 11 V to 28 V, allowing integration with industrial power systems or vehicle power supplies. An optional 230 VAC adapter is available for standard AC mains operation.

Mounting Options:
The ACS-2521 supports wall-mount installation, ideal for control cabinets, kiosks, or machine enclosures. The wall-mount kit provides secure attachment and vibration resistance.

Configuration Steps:
1. Mounting: Secure the chassis using the provided wall-mount brackets. Ensure adequate ventilation around the unit for passive heat dissipation.
2. Power Connection: Connect the DC power source (11–28 VDC) or optional AC adapter.
3. Peripheral Setup: Attach keyboard, mouse, display, and network cables.
4. Storage Installation: Install a 2.5" HDD/SSD and optional slim optical drive if required.
5. Expansion Cards: Insert PCI cards into the two available slots for additional functionality.
6. System Configuration: Load the desired operating system and configure BIOS settings as needed for application-specific requirements.

Environmental Considerations:
Ensure the installation environment maintains operating temperatures between 0 °C and 50 °C and avoids exposure to excessive dust or moisture. The fanless design relies on ambient airflow for heat dissipation.

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### 7. Performance & Capabilities

Processing Performance:
The Intel® Celeron® M 1 GHz processor delivers stable and efficient performance for embedded control, data processing, and communication tasks. While not designed for high-end computing, it provides sufficient power for industrial automation, monitoring, and control applications.

Memory and Storage:
With up to 1 GB DDR266 SDRAM, the system supports moderate multitasking and data handling. The 2.5" HDD bay allows for reliable storage of operating systems, application software, and data logs.

Expansion and Connectivity:
Dual PCI slots enable system customization with additional I/O, communication, or motion control cards. The combination of serial, USB, and LAN interfaces ensures compatibility with a wide range of industrial devices and sensors.

Efficiency and Reliability:
The fanless design minimizes power consumption and eliminates mechanical wear points, enhancing system longevity. The wide DC input range supports deployment in mobile or industrial environments with variable power sources.

Limitations:
Due to its compact design and low-power CPU, the ACS-2521 is not intended for high-performance computing or graphics-intensive applications. Memory capacity is limited to 1 GB, which may constrain modern software environments requiring larger memory footprints.

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### 8. Standards & Compliance

Certifications:
- CE (Conformité Européenne): Ensures compliance with European safety, health, and environmental protection standards.
- FCC Class A: Meets U.S. Federal Communications Commission standards for electromagnetic interference (EMI) in industrial and commercial environments.

Industry Standards:
- PCI interface compliant with standard PCI specifications.
- USB 2.0 compliant ports for peripheral connectivity.
- Ethernet 10/100 Mbps compliant with IEEE 802.3 standards.
- VGA output compliant with standard analog display interfaces.

Environmental and Safety Compliance:
The heavy-duty steel chassis and fanless design contribute to compliance with industrial-grade mechanical and thermal standards. The system is designed for continuous operation within specified temperature ranges and meets general industrial safety guidelines.

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### 9. Additional Information

Warranty:
Aplex typically provides a standard manufacturer’s warranty covering defects in materials and workmanship. Warranty terms may vary by region or distributor; users should verify coverage details at the time of purchase.

Technical Support:
Aplex offers technical documentation, driver downloads, and configuration support through its official website and authorized service partners. Assistance includes BIOS updates, OS compatibility guidance, and troubleshooting resources.

Maintenance:
The fanless design minimizes maintenance requirements. Periodic inspection of external connectors and cleaning of ventilation surfaces is recommended to ensure optimal thermal performance. Storage devices and expansion cards should be checked periodically for secure connections.

Software and Firmware Updates:
BIOS and firmware updates may be available to enhance system stability or expand hardware compatibility. Users can obtain updates from Aplex’s support portal.

Lifecycle and Reliability:
The ACS-2521 is engineered for long-term availability and consistent performance in embedded applications. Its rugged construction and passive cooling make it suitable for 24/7 operation in industrial environments.

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### Summary

The Aplex ACS-2521 Fanless Embedded Engine Box is a robust, compact, and energy-efficient computing platform tailored for industrial and embedded applications. Featuring an Intel® Celeron® M 1 GHz processor, Intel® 852GM chipset, and dual PCI expansion capability, it provides a flexible foundation for automation, control, and monitoring systems. Its fanless steel chassis ensures silent, reliable operation across a wide temperature range, while comprehensive I/O connectivity supports diverse peripheral integration. With CE and FCC Class A compliance, wide DC power input, and wall-mount installation options, the ACS-2521 delivers dependable performance in demanding environments where reliability and stability are paramount.