1. Product Overview

Product Name: IPort134-I
Model: IPORT134I
Series: IPORT / APORT Series IP-to-Serial Device Servers
Article Number: IPort134-I
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 IPort134-I is a Linux-based IP device server designed to convert Ethernet (10/100Base-TX) communication into four isolated RS422/RS485 serial interfaces. It enables remote serial device access over TCP/IP or UDP/IP networks, providing a robust and flexible solution for industrial automation, SCADA, and remote monitoring systems. The device integrates a 32-bit MIPS RISC processor, embedded Linux OS, and web-based configuration tools, offering high reliability and ease of integration into diverse network environments.

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2. Key Features

- Four Isolated Serial Ports: Supports 4 independent, ground-isolated RS422/RS485 ports via DB9 male connectors.
- Ethernet Connectivity: Auto-detecting 10/100 Mbps Ethernet interface (RJ45 connector).
- Embedded Linux System: Linux-based firmware for stability, security, and flexible configuration.
- High-Speed Serial Communication: Supports baud rates up to 230,400 bps.
- Flexible Configuration: Serial interface type (RS422 or RS485) selectable via DIP switches or software/web interface.
- Auto Data Direction Control: Automatic transmit/receive control for RS485 half-duplex communication.
- Multiple Network Modes: Supports TCP Server, TCP Client, UDP Send/Receive, and UDP Multi-Serial modes.
- Cross-Platform Drivers:
- Windows NT/2000/XP/Vista/7/8/10 Virtual COM driver
- Linux raw TTY driver
- SCO UNIX real TTY driver
- Web, Telnet, and Console Setup: Configuration accessible through web browser, Telnet session, or serial console.
- Ground Isolation: Electrical isolation between Ethernet and serial ports for noise immunity and protection.
- Compact Industrial Design: Rugged metal enclosure suitable for control cabinets and industrial environments.
- Firmware Upgradeable: Supports TFTP-based firmware updates via console and network.
- Low Power Consumption: Operates on 5VDC at 1.2A.
- Environmental Tolerance: Designed for 5–40°C operation and up to 90% relative humidity.

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3. Technical Specifications

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

Serial Interface:
- Type: Ground-isolated RS422/RS485
- Connector: DB9 male (x4)
- Port Count: 4 independent ports
- Baud Rate: Up to 230,400 bps
- Configuration: Selectable RS422 or RS485 per port via DIP switch or software
- Isolation: Ground isolation between serial and Ethernet interfaces
- Console Port: Shared with Serial Port 1

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

Power Requirements:
- Input Voltage: 5 VDC
- Current Consumption: 1.2 A (max)
- Power Adapter: UP110/UP220 (5VDC regulated supply)

Physical Characteristics:
- Dimensions: 205 mm (W) × 135 mm (D) × 29 mm (H)
- Weight: Approx. 0.8 kg (typical)
- Material: Metal enclosure (Rayon industrial-grade 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 IPort134-I functions as an IP-to-Serial converter, bridging Ethernet networks with serial devices. It allows remote access to serial equipment such as PLCs, sensors, HMIs, and industrial controllers over standard IP networks.

Operating Modes:
- TCP Server Mode: The device listens for incoming TCP connections, allowing remote clients to access serial ports as network sockets or virtual COM ports.
- TCP Client Mode: Initiates a connection to a predefined server IP and port, suitable for centralized data collection.
- UDP Mode: Enables broadcast or point-to-point communication using UDP packets, supporting up to four destination hosts.
- UDP Multi-Serial Mode: Allows multiple serial ports to share the same UDP port number for simultaneous data distribution.
- Real TTY Mode (UNIX/Linux): Provides fixed pseudo-terminal mapping for direct serial access under UNIX/Linux systems.

Configuration Interfaces:
- Web Interface: Browser-based configuration (default IP: 192.168.1.254, password: 11111).
- Telnet Interface: Command-line configuration via Telnet session.
- Console Interface: Serial console access through Port 1 (115200 bps, 8N1).

Use Cases:
- Industrial automation and SCADA systems
- Remote serial device management
- Building management systems (BMS)
- Modbus RTU over TCP/IP conversion
- Data acquisition and control networks
- Legacy serial device integration into Ethernet infrastructure

Compatibility:
- Windows (NT/2000/XP/Vista/7/8/10) via Virtual COM driver
- Linux via raw TTY driver
- SCO UNIX via real TTY driver

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5. Components & Accessories

Included Items:
- IPort134-I main unit
- 5VDC power adapter (UP110 or UP220)
- User manual and software CD (drivers, utilities, documentation)

Optional Accessories:
- DIN-rail mounting kit
- RS422/RS485 communication cables
- Console cable for setup and firmware upgrade
- Replacement power adapter

Connectors:
- Ethernet: RJ45 (10/100Base-TX)
- Serial: 4 × DB9 male connectors
- Power: DC barrel jack (5VDC input)

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6. Installation & Setup

Hardware Installation:
1. Connect the Ethernet port to a network hub or switch using a standard CAT5/6 cable.
2. Connect serial devices to the DB9 male connectors.
3. Configure DIP switches for RS422 or RS485 mode as required.
4. Apply 5VDC power using the supplied adapter.
5. Observe LED indicators for power and link status.

DIP Switch Configuration:
- Bit 1: Console port enable (ON = console, OFF = normal serial)
- Bit 2: Firmware upgrade mode (ON = upgrade, OFF = normal)
- Bit 3: RS422/RS485 selection for specific ports
- Bit 4: Global or per-port interface selection

Software Setup:
- Access via web browser (default IP 192.168.1.254).
- Configure network parameters (static IP, subnet mask, gateway).
- Set serial port parameters (baud rate, parity, stop bits, flow control).
- Select operating mode (TCP/UDP/Real TTY).
- Save and reboot to apply settings.

Driver Installation (Windows):
- Use provided utilities (aport_ap.exe or tport_ap.exe) to map serial ports to virtual COM ports.
- Install APORT or TPORT drivers depending on mode.
- Verify COM port assignment in Device Manager.

Firmware Upgrade:
- Enable firmware upgrade mode via DIP switch.
- Use TFTP client or Rayon’s “wftp8.exe” utility to upload new firmware image.
- Default upgrade IP: 192.168.1.254

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7. Performance & Capabilities

- Serial Speed: Up to 230.4 kbps per port
- Network Throughput: 10/100 Mbps auto-negotiation
- Latency: Dependent on network conditions; optimized for low-latency serial data exchange
- Concurrent Connections: Each serial port can handle one TCP/UDP session
- Buffering: Internal FIFO buffering for stable data transfer
- Auto Data Direction Control: Ensures seamless half-duplex RS485 communication without manual RTS control
- Reliability: Embedded Linux OS ensures stable long-term operation
- Limitations:
- Console port shares Serial Port 1
- Requires 5VDC regulated power supply
- Operating temperature limited to 40°C

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8. Standards & Compliance

- Ethernet Standards: IEEE 802.3 10Base-T / 100Base-TX
- Serial Standards: EIA/TIA RS422, RS485
- Network Protocols: TCP/IP, UDP/IP, DHCP (optional), Telnet, TFTP
- Software Protocols: RFC2217 (Telnet COM port control)
- Operating System Compatibility: Windows, Linux, UNIX, SCO UNIX
- Safety & EMC: Designed for industrial environments with ground isolation
- Firmware Upgrade Protocol: TFTP (Trivial File Transfer Protocol)
- Compliance: Meets general CE and FCC Class A industrial device standards (typical for Rayon products)

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9. Additional Information

Warranty:
- Standard 1-year limited warranty covering defects in materials and workmanship.
- Excludes damage from misuse, unauthorized servicing, or incorrect power supply.

Support & Maintenance:
- Technical support via email (rayon@ms1.hinet.net).
- Firmware updates available from Rayon’s website.
- RMA (Return Material Authorization) required for repairs.

Maintenance Recommendations:
- Use only approved 5VDC adapters.
- Maintain clean, dry environment within specified humidity range.
- Periodically check firmware version and update if necessary.

Firmware & Software Utilities:
- aport_ap.exe / tport_ap.exe: Configure virtual COM mapping.
- aport_search.exe / tport_search.exe: Discover devices on LAN.
- wftp8.exe: Firmware upgrade utility.
- gvmodem / rtty drivers: UNIX/Linux integration packages.

Related Models in the APORT/IPORT Series:
- APORT200: IP to 2×RS232 converter
- APORT020: IP to 2×isolated RS232 converter
- APORT101: IP to 1×RS232 + 1×RS422/485 converter
- APORT400: IP to 4×RS232 converter
- APORT040: IP to 4×isolated RS232 converter
- APORT800: IP to 8×RS232 converter
- APORT080: IP to 8×isolated RS232 converter
- IPORT138I: IP to 8×isolated RS422/RS485 converter
- IPORT114: IP to 4×RS232/RS422/RS485 converter
- IPORT118: IP to 8×RS232/RS422/RS485 converter

Manufacturer’s Notes:
- All product names and trademarks belong to their respective owners.
- Rayon Technology specializes in industrial communication converters and serial networking solutions.

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Summary

The Rayon IPort134-I is a compact, Linux-based IP device server that bridges Ethernet networks with four isolated RS422/RS485 serial ports. Designed for industrial automation and remote device management, it supports multiple communication modes (TCP, UDP, Real TTY) and cross-platform drivers for Windows, Linux, and UNIX systems. With robust isolation, flexible configuration, and reliable performance up to 230.4 kbps per port, the IPort134-I provides a dependable solution for integrating legacy serial equipment into modern IP networks. Its web-based management, firmware upgradeability, and comprehensive driver support make it suitable for demanding industrial and commercial applications requiring stable, long-term serial-over-IP connectivity.