1. Product Overview

Product Name: IPORT111
Model: IPORT111
Series: IPORT / APORT Series – IP to Serial Port Converters
Article Number: IPORT111
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 IPORT111 is a compact, Linux-based IP device server designed to convert Ethernet (10/100Base-TX) communication into a single configurable serial interface (RS232, RS422, or RS485). It enables remote serial device connectivity over TCP/IP or UDP/IP networks, providing a reliable bridge between legacy serial equipment and modern Ethernet infrastructures. The device is part of Rayon’s industrial-grade APORT/IPORT series, known for robust performance, flexible configuration, and cross-platform driver support for Windows, Linux, and UNIX systems.

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2. Key Features

- Multi-Protocol Serial Interface: Supports RS232, RS422, and RS485 communication standards, selectable via DIP switch or web configuration.
- Ethernet Connectivity: Auto-detecting 10/100 Mbps Ethernet interface with RJ45 connector for seamless LAN integration.
- Embedded Linux System: Built on a Linux-based RISC architecture for stability, scalability, and remote management.
- Flexible Configuration: Supports configuration through Web GUI, Telnet, or console terminal.
- High-Speed Serial Communication: Operates at data rates up to 230.4 kbps.
- Auto Data Direction Control: Automatic transmit/receive switching for RS485 mode, eliminating manual control requirements.
- Cross-Platform Driver Support:
- Windows NT/2000/XP/Vista/7/8/10 virtual COM port driver
- Linux raw TTY driver
- SCO UNIX real TTY driver
- Multiple Operating Modes:
- TCP Server / Client
- UDP Send / Receive
- Real TTY (COM or GVMODEM)
- Web-Based Management: Integrated web server for easy setup and monitoring.
- Compact Industrial Design: Rugged enclosure suitable for embedded and industrial applications.
- Low Power Consumption: Operates on 5VDC at 1200mA.
- Firmware Upgradeable: Supports TFTP-based firmware updates via console or network.
- Diagnostic LEDs: Indicate power, LAN link/activity, and serial communication status.

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3. Technical Specifications

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

Serial Port:
- Interface: RS232 / RS422 / RS485 (software or DIP switch selectable)
- Connector: DB9 male
- Port Count: 1
- Maximum Baud Rate: 230,400 bps
- Console Port: Shared with Serial Port 1
- Flow Control: Hardware and software configurable
- Auto Data Direction Control: Supported in RS485 mode

Ethernet Interface:
- Type: 10/100 Mbps Ethernet (IEEE 802.3 compliant)
- Connector: RJ45
- Auto-negotiation: Supported (10/100Base-TX)

Power Requirements:
- Input Voltage: 5 VDC
- Current Consumption: 1200 mA
- Power Adapter: UP110/UP220 (5VDC regulated supply recommended)

Physical Characteristics:
- Dimensions: 92 mm (W) × 118 mm (D) × 27 mm (H)
- Weight: Approx. 250 g (typical)
- Material: Industrial-grade enclosure (Rayon proprietary design)

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 IPORT111 functions as an IP-to-Serial converter, enabling serial devices to communicate over Ethernet networks. It encapsulates serial data into TCP or UDP packets, allowing remote access to serial equipment such as PLCs, sensors, barcode scanners, or industrial controllers.

Operating Modes:
- TCP Server Mode: The IPORT111 listens for incoming TCP connections from clients (e.g., PCs running virtual COM drivers).
- TCP Client Mode: The device initiates a connection to a specified remote server, suitable for centralized data collection.
- UDP Mode: Supports both send and receive operations, allowing broadcast or multicast communication to multiple hosts.
- Real TTY Mode: Provides direct serial-to-network mapping for UNIX/Linux systems using GVMODEM or COM Real TTY drivers.

Configuration Interfaces:
- Web Interface: Accessible via browser (default IP: 192.168.1.254, password: 11111).
- Telnet Interface: Command-line configuration for advanced users.
- Console Interface: Serial terminal access for initial setup or recovery.

Compatibility:
- Windows (NT through Windows 10) via Rayon’s Virtual COM (TPORT/RPORT) drivers.
- Linux and UNIX systems via raw or real TTY drivers.
- SCO OpenServer via RTTY driver.

Use Cases:
- Industrial automation and SCADA systems
- Remote monitoring of serial instruments
- POS and kiosk systems
- Building management and access control
- Legacy serial device networking

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5. Components & Accessories

Included Items:
- IPORT111 main unit
- 5VDC power adapter (UP110 or UP220)
- User manual and software CD (includes drivers and utilities)

Optional Accessories:
- Console cable (DB9 to DB9 or DB9 to RJ45, depending on setup)
- DIN-rail mounting kit (optional)
- Replacement power adapter
- Firmware upgrade utilities (wftp8.exe for Windows, TFTP client for Linux)

Connectors:
- LAN: RJ45 (10/100Base-TX)
- Serial: DB9 male (RS232/422/485 selectable)
- Power: Barrel-type DC jack (5VDC input)

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6. Installation & Setup

Hardware Installation:
1. Connect the IPORT111 to a network switch or hub using a standard Ethernet cable.
2. Attach the serial device to the DB9 connector.
3. Set the desired serial interface (RS232/RS422/RS485) using the DIP switch or via web configuration.
4. Connect the 5VDC power adapter and power on the device.
5. Observe LED indicators for power and link status.

Software Setup:
- Access the web interface at `http://192.168.1.254` (default credentials: password “11111”).
- Configure IP settings (static IP recommended).
- Select operating mode (TCP Server, TCP Client, UDP, or Real TTY).
- Assign serial parameters (baud rate, parity, data bits, stop bits, flow control).
- Save and reboot to apply settings.

Driver Installation (Windows):
- Use Rayon’s TPORT or RPORT virtual COM drivers.
- Run `tport_ap.exe` or `aport_ap.exe` to map virtual COM ports to the IPORT111’s IP and port number.
- Install via `tinstall.exe` or `ainstall.exe` depending on driver type.
- Verify COM port availability in Windows Device Manager.

Driver Installation (Linux/UNIX):
- Extract and install `gvmodem_linux.tar` or `rtty100.tar` packages.
- Configure `/etc/gtstcpd/gtstcpd.cf` to map pseudo TTY devices to the IPORT111’s IP and port.
- Start the daemon using `./gtstcpd.rc start`.

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7. Performance & Capabilities

- Serial Throughput: Up to 230.4 kbps
- Network Throughput: 10/100 Mbps auto-negotiation
- Latency: Dependent on network conditions; optimized for low-latency serial data exchange
- Connection Modes: Supports single or multiple client connections (depending on mode)
- Buffering: Internal buffering for serial-to-network data flow
- Reliability: Heartbeat mechanism in TPORT driver ensures connection integrity; automatic reconnection after network failure
- Limitations:
- Shared console/serial port (only one function active at a time)
- Single serial port per device
- Requires consistent serial protocol configuration between device and driver to avoid data mismatch

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8. Standards & Compliance

- Ethernet Standards: IEEE 802.3 10Base-T / 100Base-TX
- Serial Standards: EIA/TIA RS232, RS422, RS485
- Network Protocols: TCP/IP, UDP/IP, DHCP (optional), TFTP (for firmware upgrade)
- Software Standards: RFC2217 (Telnet COM port control) supported in TCP server mode
- Operating System Compatibility:
- Windows NT/2000/XP/Vista/7/8/10
- Linux (kernel-level TTY support)
- SCO UNIX / UNIX variants
- Safety & Quality: Designed for industrial-grade reliability; compliant with Rayon’s internal quality assurance standards

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9. Additional Information

Warranty:
- Standard 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 provided through Rayon’s website or authorized distributors.
- RMA (Return Material Authorization) required for repairs; contact Rayon for RMA number and shipping instructions.

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

Maintenance Tips:
- Use only 5VDC regulated power supply (UP110/UP220).
- Avoid exposure to extreme temperatures or humidity.
- Periodically check firmware version and update if necessary.
- Use “ping” or web diagnostics to verify network connectivity.

Related Models in the APORT/IPORT Series:
- APORT200: IP to two RS232 ports
- APORT020: IP to two ground-isolated RS232 ports
- APORT101: IP to one RS232 and one ground-isolated RS422/485 port
- APORT400 / APORT040: IP to four RS232 or ground-isolated RS232 ports
- APORT800 / APORT080: IP to eight RS232 or ground-isolated RS232 ports
- IPORT134 / IPORT134I: IP to four RS422/RS485 ports (isolated or non-isolated)
- IPORT118: IP to eight RS232/RS422/RS485 ports

Summary:
The Rayon IPORT111 is a versatile, Linux-based IP-to-serial converter engineered for industrial and commercial applications requiring reliable serial-over-Ethernet communication. With its configurable RS232/RS422/RS485 interface, robust TCP/UDP networking, and comprehensive driver support across multiple operating systems, it provides a seamless bridge between traditional serial devices and modern IP networks. Its compact design, web-based management, and firmware upgradeability make it a cost-effective and future-proof solution for system integrators and automation engineers.