1. Product Overview

Product Name: APort111
Model: APort111
Series: APORT Series – IP to Serial Port Converters
Article Number: APort111
Manufacturer: Rayon Technology Co., Ltd.
Manufacturer Address: 2F, No. 177, Chung Shan 2 Rd., Lu Chou City, Taipei Hsien, Taiwan
Contact: Tel: +886-2-82858362 | Fax: +886-2-82857065
Email: rayon@ms1.hinet.net / info@rayontech.com.tw
Websites: [www.rayontech.com.tw](http://www.rayontech.com.tw), [www.computex.com.tw/rayon](http://www.computex.com.tw/rayon)

The Rayon APort111 is a compact, Linux-based IP Device Server designed to convert Ethernet (10/100Base-TX) communication into serial communication via one RS232 port and one isolated RS422/485 port. It enables remote access, control, and monitoring of serial devices over TCP/IP or UDP/IP networks, providing a reliable bridge between legacy serial equipment and modern Ethernet infrastructures.

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2. Key Features

- Dual Serial Interfaces:
- One standard RS232 port (DB9 male)
- One ground-isolated RS422/485 port (DB9 male)
- Network Interface: 10/100 Mbps auto-detecting Ethernet (RJ45 connector)
- High-Performance Embedded System:
- 32-bit 100 MHz MIPS RISC CPU
- 16 MB Flash ROM and 16 MB SDRAM
- Flexible Communication Modes:
- TCP Server / TCP Client
- UDP Send / Receive
- Real TTY and Virtual COM modes
- Cross-Platform Driver Support:
- Windows NT/2000/XP/Vista/7/8/10 Virtual COM driver
- Linux raw TTY driver
- SCO UNIX real TTY driver
- Web, Telnet, and Console Configuration:
- Built-in web server for browser-based setup
- Telnet and terminal configuration options
- Ground Isolation:
- Electrical isolation on RS422/485 interface for noise immunity and protection
- Compact and Durable Design:
- Small form factor for easy integration into control panels or network cabinets
- Local and Remote Access:
- Supports local pass-through and remote IP access
- High-Speed Serial Communication:
- Up to 230,400 bps (230.4 kBd)
- Low Power Consumption:
- 5 VDC @ 1200 mA
- Operating System: Embedded Linux for stability and flexibility

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3. Technical Specifications

Processor & Memory:
- CPU: 32-bit 100 MHz MIPS RISC processor
- Flash ROM: 16 MB
- SDRAM: 16 MB

Network Interface:
- Ethernet: 10/100 Mbps auto-sensing (100Base-TX)
- Connector: RJ45

Serial Interfaces:
- Port 1: RS232 (DB9 male)
- Port 2: Ground-isolated RS422/485 (DB9 male)
- Port Count: 1 (dual interface configuration)
- Baud Rate: Up to 230,400 bps
- Console Port: Shared with Serial Port 1

Power Requirements:
- Input Voltage: 5 VDC
- Current Consumption: 1200 mA

Physical Dimensions:
- Size: 92 × 118 × 27 mm
- Weight: Approx. 250 g (typical, excluding power adapter)
- Material: Industrial-grade enclosure (Rayon standard housing)

Environmental Conditions:
- Operating Temperature: 5°C to 40°C
- Storage Temperature: 0°C to 65°C
- Operating Humidity: 10–90% RH (non-condensing)
- Storage Humidity: 5–90% RH

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4. Functionality

The APort111 functions as an IP-to-Serial converter, enabling Ethernet-based systems to communicate with serial devices such as PLCs, sensors, barcode scanners, and industrial controllers. It encapsulates serial data into TCP or UDP packets for transmission over IP networks and decapsulates incoming network data back into serial form.

Operating Modes:
- TCP Server Mode: The APort111 listens for incoming TCP connections, allowing remote clients to access its serial ports.
- TCP Client Mode: The device initiates a connection to a designated server, suitable for centralized data collection.
- UDP Mode: Supports both send and receive operations, enabling broadcast or multicast communication.
- Real TTY Mode: Provides direct serial access for UNIX/Linux systems.
- Virtual COM Mode: Emulates standard COM ports on Windows systems for legacy software compatibility.

Configuration Interfaces:
- Web Interface: Browser-based configuration via HTTP.
- Telnet Interface: Command-line configuration over the network.
- Console Interface: Local serial configuration via terminal connection.

Use Cases:
- Industrial automation and SCADA systems
- Remote monitoring of serial instruments
- Integration of legacy RS232/RS485 devices into Ethernet networks
- Data acquisition and control in manufacturing environments
- Serial-over-IP communication for building management systems

Compatibility:
- Windows (NT/2000/XP/Vista/7/8/10)
- Linux (raw TTY)
- SCO UNIX (real TTY)
- Compatible with TPORT and RPORT virtual COM drivers

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5. Components & Accessories

Included Components:
- APort111 IP Device Server unit
- Power adapter (5 VDC, 1200 mA)
- User manual and software CD (includes drivers and utilities)

Optional Accessories:
- TB485: DB9 Female to RS485 terminal block kit for easy wiring
- UP110/UP220: Certified 5 VDC power adapters
- Console Cable: For local configuration via RS232

Connectors:
- Ethernet: RJ45 (10/100Base-TX)
- Serial Ports: Two DB9 male connectors (RS232 and RS422/485)

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6. Installation & Setup

Requirements:
- Standard Ethernet network (10/100 Mbps)
- 5 VDC regulated power supply
- Serial cables appropriate for RS232 or RS422/485 devices

Installation Steps:
1. Power Off: Ensure the device is disconnected from power.
2. Network Connection: Connect the RJ45 port to a network hub or switch.
3. Console Setup (Optional): Connect a terminal to Serial Port 1 for console access (115200 bps, 8N1).
4. Serial Device Connection: Attach RS232 or RS422/485 devices to the corresponding DB9 ports.
5. Power On: Apply 5 VDC power; verify LED indicators for power and network link.
6. Configuration:
- Access via web browser (default IP: 192.168.1.254, password: 11111).
- Configure IP address, subnet mask, and gateway.
- Set serial port parameters (baud rate, parity, stop bits, flow control).
- Select operating mode (TCP/UDP/Real TTY).
7. Driver Installation (Windows):
- Use provided APORT or TPORT drivers to create virtual COM ports.
- Map each virtual COM port to the APort111’s IP and port number.
8. Verification: Test communication using terminal software or application software.

Mounting Options:
Compact design allows desktop placement or DIN-rail mounting (with optional bracket).

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7. Performance & Capabilities

- Data Rate: Up to 230,400 bps per serial port
- Network Throughput: 10/100 Mbps auto-negotiation
- Latency: Dependent on network conditions; optimized for low-latency serial data exchange
- CPU Performance: 32-bit 100 MHz RISC processor ensures stable multitasking and protocol handling
- Memory Resources: 16 MB Flash and 16 MB SDRAM support embedded Linux OS and buffering
- Reliability: Continuous operation supported by watchdog timer and robust firmware
- Isolation: RS422/485 port provides galvanic isolation to prevent ground loops and signal interference
- Limitations:
- Single-user access per serial port in TPORT mode
- Network latency may affect timing-sensitive applications
- Requires consistent IP configuration for stable operation

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8. Standards & Compliance

- Network Standards: IEEE 802.3 10Base-T / 100Base-TX
- Serial Standards: EIA/TIA RS232, RS422, RS485
- Protocol Support: TCP/IP, UDP/IP, Telnet, HTTP, RFC2217 (for serial parameter control)
- Operating System Compatibility: Windows, Linux, UNIX, SCO OpenServer
- Electrical Safety: Ground-isolated RS422/485 interface
- Environmental Compliance: Designed for industrial temperature and humidity ranges
- Firmware Upgrade: Supports TFTP-based firmware updates via console or network

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9. Additional Information

Warranty:
- One-year limited warranty covering defects in materials and workmanship.
- Excludes damage from misuse, unauthorized servicing, or incorrect power supply.

Support & Maintenance:
- Technical support available via email (rayon@ms1.hinet.net).
- Firmware updates and driver downloads provided by Rayon Technology.
- RMA (Return Material Authorization) required for repairs.

Maintenance Recommendations:
- Use only approved 5 VDC power adapters (UP110/UP220).
- Maintain proper ventilation and avoid exposure to excessive heat or humidity.
- Periodically check firmware version and update as needed.

Firmware Upgrade Procedure:
- Enter firmware upgrade mode via DIP switch (bit 2 ON).
- Connect via console (115200 bps, 8N1).
- Use TFTP client to upload new firmware (default IP: 192.168.1.254).
- Verify version via web interface or console after reboot.

Related Models in APORT Series:
- APORT200: Ethernet to 2×RS232 ports
- APORT020: Ethernet to 2×Isolated RS232 ports
- APORT400: Ethernet to 4×RS232 ports
- APORT040: Ethernet to 4×Isolated RS232 ports
- APORT202: Ethernet to 2×RS232 + 2×Isolated RS422/485 ports
- APORT800: Ethernet to 8×RS232 ports

Driver Options:
- TPORT Driver: For dedicated single-PC virtual COM usage (persistent TCP connection).
- RPORT Driver: For multi-PC environments (dynamic TCP connection).

Troubleshooting Highlights:
- Verify power LED and network link indicators.
- Use “ping” to confirm network connectivity.
- Check serial port LEDs for data transmission activity.
- Use console or web interface to verify configuration.
- Ensure correct driver installation and COM port mapping.

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Summary

The Rayon APort111 IP Device Server is a robust, industrial-grade Ethernet-to-serial converter that bridges modern IP networks with traditional serial communication systems. Featuring dual serial interfaces (RS232 and isolated RS422/485), a high-performance 32-bit RISC processor, and comprehensive cross-platform driver support, it delivers reliable, high-speed data exchange for automation, monitoring, and control applications. Its flexible configuration options, embedded Linux OS, and support for multiple communication protocols make it an ideal solution for integrating legacy serial devices into networked environments while maintaining performance, stability, and ease of management.