1. Product Overview

Product Name: Matrix-504-128
Model: Matrix-504
Series: Matrix-500 Series (upward compatible)
Article Number: Matrix-504-128
Manufacturer: Artila Electronics Co., Ltd.
Product Type: Linux-ready ARM9 Industrial Box Computer

The Artila Matrix-504-128 is a compact, fanless, ARM9-based embedded industrial computer designed for automation, control, and networked data acquisition applications. It integrates a 400 MHz Atmel AT91SAM9G20 processor, 128 MB SDRAM, and 128 MB NAND Flash memory, preloaded with Linux kernel 2.6.29 and a full embedded file system. The device supports multiple serial communication standards (RS‑232/422/485), Ethernet networking, USB host expansion, and programmable digital I/O, making it a versatile platform for industrial and embedded system developers.

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2. Key Features

- Embedded ARM9 Processor: Atmel AT91SAM9G20, 400 MHz ARM926EJ‑S core with MMU, 32 KB instruction and 32 KB data cache.
- Pre‑installed Linux System: Linux kernel 2.6.29 with U‑Boot 1.1.2 bootloader and full root file system.
- Memory Architecture: 128 MB SDRAM and 128 MB NAND Flash; includes 2 MB DataFlash® for system backup.
- Storage Expansion: Internal microSD socket supporting up to 16 GB SDHC cards.
- Networking: One 10/100 Base‑T Ethernet port (RJ45) with 1.5 kV magnetic isolation.
- Serial Communication: Four software‑configurable serial ports (1 × RS‑232/422/485, 3 × RS‑232/485) supporting up to 921.6 kbps.
- USB Connectivity: Two USB 2.0 full‑speed (12 Mbps) host ports and one reserved client port.
- Digital I/O: Five programmable GPIO channels (TTL compatible).
- Low Power Design: Operates from 9–48 V DC, consuming less than 3 W (≈ 250 mA @ 12 V).
- Compact, Fanless Construction: Metal enclosure, DIN‑rail mountable, dimensions 78 × 108 × 24 mm.
- Wide Operating Range: Standard 0 – 70 °C; optional Matrix‑504T version supports −20 – 80 °C.
- Software Development Support: GNU C/C++ cross‑toolchain for Linux and Windows (via Cygwin), Java accelerator, and pre‑installed utilities.
- Security & Networking Services: SSH 1.0/2.0, SSL, FTP, Telnet, HTTP (Apache2 or lighttpd), and iptables firewall.
- Maintenance & Recovery: Built‑in DataFlash recovery system, watchdog timer, and system recovery console.

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3. Technical Specifications

Processor & Memory
- CPU: Atmel AT91SAM9G20 (ARM926EJ‑S, 400 MHz, with MMU)
- Cache: 32 KB instruction + 32 KB data cache
- SDRAM: 128 MB (some variants 64 MB)
- NAND Flash: 128 MB (some variants 256 MB)
- DataFlash: 2 MB (system backup)
- microSD: 1 × socket, up to 16 GB SDHC

Networking
- Interface: 1 × 10/100 Base‑T Ethernet (RJ45)
- Isolation: 1.5 kV magnetic isolation
- Default IP: 192.168.2.127

Serial Communication (TTY Ports)
- Port 1: RS‑232/422/485 selectable
- Ports 2–4: RS‑232/485 selectable
- Connector: RJ45
- Baud Rate: up to 921.6 kbps
- Data Bits: 5, 6, 7, 8
- Stop Bits: 1, 1.5, 2
- Parity: None, Even, Odd, Mark, Space
- Flow Control: RTS/CTS, XON/XOFF, None
- RS‑485 Direction Control: Automatic (hardware)

USB Interface
- Host Ports: 2 × USB 2.0 full‑speed (12 Mbps)
- Client Port: 1 × reserved
- Supported Devices: Flash drives, Wi‑Fi dongles (Ralink RT73), USB‑to‑Serial (PL‑2303, FTDI), USB modems (CDC), USB cameras

General Hardware
- Watchdog Timer: Yes
- Real‑Time Clock: Yes
- Buzzer: Yes
- Power Input: 9 – 48 V DC
- Power Consumption: 250 mA @ 12 V DC (≈ 3 W)
- Dimensions (W × H × D): 78 × 108 × 24 mm
- Weight: Approx. 250 g
- Operating Temperature: 0 – 70 °C (Matrix‑504T: −20 – 80 °C)
- Storage Temperature: −40 – 85 °C
- Enclosure: Fanless metal housing, DIN‑rail mountable
- Regulatory: CE Class A, FCC Class A

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4. Functionality

The Matrix‑504‑128 functions as a compact embedded Linux computer for industrial automation, data acquisition, and networked control. It boots from NAND Flash using U‑Boot, loads the Linux 2.6.29 kernel, and mounts its root file system automatically. Users can access the system via Ethernet (SSH, Telnet, FTP, HTTP) or through the serial console (RS‑232).

Use Cases & Applications:
- Industrial automation controllers and gateways
- Serial‑to‑Ethernet communication bridges
- Remote data logging and monitoring systems
- Embedded web servers for equipment management
- Protocol conversion (Modbus RTU/TCP, custom serial protocols)
- IoT edge computing nodes

Compatibility:
- Supports USB Wi‑Fi adapters (Ralink RT73/RT2571) for wireless networking
- Compatible with standard USB mass‑storage devices and serial adapters
- Works with GNU C/C++ toolchains for Linux and Windows (Cygwin)
- Supports NFS, VFAT, EXT2/3, JFFS2, UBI file systems

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5. Components & Accessories

Included Items:
1. Matrix‑504‑128 main unit
2. Artila CD containing:
- GNU C/C++ toolchain for Linux/Windows
- Installation guide and utilities
- Device drivers and example programs

Optional Accessories:
- CB‑RJ45F9‑150 (91‑R45F9‑150): RJ45‑to‑DB9 Female serial cable, 150 cm
- CB‑RJ2CON‑100 (91‑RJCON‑100): Console cable (RJ45‑to‑DB9 Female), 100 cm
- DK‑35A (36‑DK35A‑000): DIN‑rail mounting kit
- PWR‑12V‑1A (31‑62100‑000): 110–240 VAC to 12 V DC 1 A power adapter

Connectors:
- RJ45 × 5 (1 Ethernet + 4 Serial)
- USB Type‑A × 2 (Host)
- microSD slot (internal)
- Power terminal block (9–48 V DC)
- Reset button
- LED indicators: Power, System Ready, Ethernet Link/Activity, Serial TX/RX

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6. Installation & Setup

Power Connection:
Connect a regulated 9–48 V DC supply to the power terminal. The Power LED glows solid green when voltage is within range.

Mounting:
The unit can be DIN‑rail mounted using the optional DK‑35A kit. Its fanless metal enclosure ensures reliable operation in industrial environments.

Network Configuration:
Default IP address 192.168.2.127. Configure via `/etc/network/interfaces` or through webmin. Supports static or DHCP configuration and optional wireless LAN via USB dongle.

Serial Console Access:
Use the CB‑RJ2CON‑100 cable to connect the console port (RJ45) to a PC. Terminal settings: 115200 bps, 8 data bits, no parity, 1 stop bit, no flow control, VT100 terminal.

System Boot:
On power‑up, the bootloader initializes the kernel and mounts the root file system. The Ready LED turns solid green when the system is fully operational.

Software Setup:
- Login via SSH or Telnet (user: root/guest, password: root/guest).
- Use `ipkg` for package management (install, update, remove).
- Webmin can be installed for browser‑based administration on port 10000.

Reset & Recovery:
Hardware reset button available; use only if software reboot fails. In case of file‑system corruption, the system automatically boots from DataFlash recovery mode, allowing restoration via USB disk.

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7. Performance & Capabilities

- Processing Speed: 400 MHz ARM9 core with hardware multiply/divide and Java acceleration.
- Serial Throughput: Up to 921.6 kbps per port.
- Network Performance: 10/100 Mbps Ethernet with full‑duplex support.
- USB Data Rate: Full‑speed 12 Mbps.
- Power Efficiency: < 3 W typical consumption.
- System Reliability: Watchdog timer, real‑time clock, and automatic DataFlash recovery ensure continuous operation.
- Storage Capacity: 128 MB NAND Flash + microSD expansion (up to 16 GB).
- Limitations: No hardware floating‑point unit; USB client port reserved for factory use; limited to full‑speed USB 2.0 (no high‑speed 480 Mbps).

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8. Standards & Compliance

- Electrical Safety & EMC: CE Class A, FCC Class A compliant.
- Environmental: RoHS‑compliant components; fanless design for industrial reliability.
- Software Standards:
- POSIX‑compliant GLIBC library
- Linux 2.6.29 kernel
- GNU GCC 4.3.3 toolchain
- Supported file systems: EXT2/3, VFAT, NFS, JFFS2, UBI
- Network Protocols: TCP/IP, SSH, FTP, HTTP, Telnet, PPP, NTP, SSL.

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9. Additional Information

Warranty & Support:
Artila provides standard warranty coverage for manufacturing defects and offers firmware updates, software utilities, and documentation through its website (www.artila.com).

Maintenance:
- Use `update` utility for loader, kernel, and file‑system upgrades.
- `setuart` configures serial port modes and baud rates.
- `gpioctl` manages digital I/O configuration.
- `version` displays OS version information.
- System recovery via DataFlash menu allows image restoration from USB disk.

Software Utilities & Packages:
Pre‑installed utilities include BusyBox v1.14.2, sysvinit v2.86, iptables v1.3.8, Apache2 v2.23, vsftpd v2.0.5, bash v3.2, wireless_tools v29, ppp v2.4.3, and Artila utility v1.1.
Additional packages can be installed via `ipkg` from Artila’s FTP repositories or local USB storage.

Development Environment:
- Linux Host: Install `arm-linux-4.3.3` toolchain (gcc 4.3.3, glibc 2.9, binutils 2.18).
- Windows Host: Use CodeSourcery GCC 4.3.3 toolchain under Cygwin.
- Debugging: Supports remote debugging via `gdbserver` and DDD GUI.
- Example Programs: Provided on Artila CD with Makefiles for quick compilation.

System Administration:
- Default services: SSH, Telnet, FTP, Web Server, Syslog, amgrd (Artila broadcast search daemon).
- Run‑level management via `/etc/inittab` (default run‑level 5).
- Webmin modules for system, network, server, and hardware configuration.

Recovery & Diagnostics:
If NAND Flash fails, the system boots from DataFlash and presents a console menu with options to:
1. Update Image (loader, kernel, filesystem) from USB.
2. Make Filesystem (create custom image).
3. Recover Environment files.
4. Display system information.
5. Reboot.

LED Indicators:
- Power LED: Solid green = power OK.
- Ready LED: Solid green = system booted; off = halted.
- Ethernet LED: Green = link; flashing = activity.
- Serial LEDs: Green = RXD active; Yellow = TXD active.

GPIO & Internal Connectors (for advanced users):
- CN7 (DIO): 16 programmable I/O, TTL level, 2.54 mm 20‑pin header.
- CN6 (SPI): 5‑pin header (MISO, MOSI, SPCK, NPCS0, NPCS1).
- JP2 (Serial Debug): 4‑pin TTL port (ttyS0).
- CN1 (JTAG): standard ARM JTAG interface.

Summary

The Artila Matrix‑504‑128 is a robust, Linux‑ready embedded controller optimized for industrial and automation environments. Its combination of a 400 MHz ARM9 CPU, multiple serial interfaces, Ethernet connectivity, and flexible I/O makes it ideal for system integrators and developers requiring a reliable, low‑power, and open‑source platform. With pre‑installed Linux, comprehensive development tools, and extensive communication support, the Matrix‑504‑128 serves as a versatile foundation for embedded control, data acquisition, and IoT gateway applications.