1. Product Overview

Product Name: IPort114
Model: IPORT114
Series: IP to Serial Port Converter (APORT/IPORT Series)
Article Number: IPort114
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
Website: [www.rayontech.com.tw](http://www.rayontech.com.tw)

The Rayon IPort114 is a Linux-based IP device server designed to convert Ethernet (10/100Base-TX) communication into four independent serial interfaces configurable as RS232, RS422, or RS485. It provides a robust and flexible solution for integrating legacy serial devices into modern IP-based networks. The device is part of Rayon’s APORT/IPORT family of industrial communication converters, offering reliable serial-to-Ethernet connectivity for automation, control, and data acquisition systems.

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2. Key Features

- Multi-Protocol Serial Support: Four independent serial ports configurable as RS232, RS422, or RS485 via DIP switch or software setup.
- High-Speed Communication: Supports baud rates up to 230,400 bps for each serial channel.
- Linux-Based Embedded System: Built on a 32-bit 100 MHz MIPS RISC CPU with 16 MB Flash ROM and 16 MB SDRAM, ensuring stable and efficient operation.
- Flexible Network Connectivity: Auto-detecting 10/100 Mbps Ethernet interface with RJ45 connector supporting both TCP/IP and UDP/IP protocols.
- Cross-Platform Compatibility:
- Windows NT/2000/XP/Vista/7/8/10 via virtual COM port driver (TPORT/RPORT).
- Linux via raw TTY driver.
- SCO UNIX via real TTY driver.
- Multiple Operating Modes:
- TCP Server/Client mode.
- UDP Send/Receive and Multi-Serial modes.
- Real TTY (COM or GVMODEM) modes for UNIX/Linux integration.
- Web and Telnet Configuration: Full configuration via web browser, Telnet, or console terminal.
- Auto Data Direction Control: Automatic transmit/receive switching in RS485 mode.
- DIP Switch Configuration: Hardware DIP switches for interface selection, console mode, and firmware upgrade mode.
- Compact Industrial Design: Rugged metal enclosure with compact dimensions (205 × 135 × 29 mm).
- Low Power Consumption: Operates at 5 VDC, 1200 mA.
- Environmental Tolerance: Operating temperature 5–40°C; humidity 10–90% RH.

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3. Technical Specifications

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

Serial Interface:
- Number of Ports: 4
- Interface Types: RS232 / RS422 / RS485 (software or DIP switch selectable)
- Connector Type: DB9 male
- Maximum Baud Rate: 230,400 bps
- Console Port: Shared with Serial Port 1
- Signal Control: Auto Data Direction Control for RS485

Network Interface:
- Ethernet: 10/100 Mbps auto-detecting
- Connector: RJ45 (100Base-TX)
- Supported Protocols: TCP/IP, UDP/IP

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

Physical Characteristics:
- Dimensions: 205 mm (W) × 135 mm (D) × 29 mm (H)
- Material: Industrial-grade metal housing
- Weight: Approx. 0.8 kg (typical)

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 IPort114 functions as a network-to-serial gateway, enabling Ethernet-based systems to communicate with serial devices. Each of its four serial ports can be independently configured for RS232, RS422, or RS485 operation, allowing flexible integration with various industrial equipment such as PLCs, sensors, barcode scanners, and HMIs.

Operating Modes:
- TCP Server Mode: The IPort114 listens for incoming TCP connections, allowing remote clients to access serial devices.
- TCP Client Mode: The device initiates a connection to a specified server, suitable for centralized data collection.
- UDP Mode: Supports both send and receive modes, enabling broadcast or multicast communication to multiple hosts.
- UDP Multi-Serial Mode: Allows multiple serial ports to share the same UDP port number for simultaneous data transmission.
- Real TTY Mode: Provides direct serial device 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 console setup via Port 1 (115200 bps, 8N1).

Use Cases:
- Industrial automation and SCADA systems.
- Remote monitoring and control of serial devices.
- Integration of legacy RS232/RS485 equipment into IP networks.
- Data acquisition and telemetry applications.
- Modbus TCP/RTU bridging.

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

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5. Components & Accessories

Included Items:
- IPort114 main unit.
- UP110/UP220 5VDC power adapter.
- User manual and software CD (includes drivers and utilities).

Optional Accessories:
- Console cable (RS232).
- Ethernet cable (RJ45).
- Mounting brackets or DIN-rail kit (optional).

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

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6. Installation & Setup

Hardware Installation:
1. Connect the IPort114 to a network hub or switch using a standard Ethernet cable.
2. Connect serial devices to the DB9 ports.
3. Configure DIP switches as required:
- Bit 1: Console port enable (ON = console, OFF = normal serial).
- Bit 2: Firmware upgrade mode (ON = upgrade, OFF = normal).
- Bits 3–4: RS422/RS485 interface selection.
4. Apply 5VDC power using the supplied adapter.
5. Observe LED indicators for power and network link status.

Software Setup:
- Access the web interface at `http://192.168.1.254` (default).
- Configure IP address, subnet mask, and gateway (static IP recommended).
- 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 aport_ap.exe or tport_ap.exe utilities to map virtual COM ports.
- Install drivers via ainstall.exe or tinstall.exe depending on mode.
- Verify COM port assignment in Device Manager.

Firmware Upgrade:
- Enable firmware upgrade mode via DIP switch 2.
- Connect via TFTP client to 192.168.1.254 and upload new firmware image.
- Reboot to complete the upgrade.

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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 or multiple UDP sessions.
- Buffering: Internal FIFO buffering ensures reliable data transfer.
- Reliability: Embedded Linux OS provides stable multitasking and watchdog protection.
- Limitations:
- TCP latency may affect time-sensitive applications.
- Only one host can occupy a serial port in TPORT mode; RPORT mode allows shared access.

Driver Modes:
- TPORT Driver: Maintains persistent TCP connection for dedicated Windows host.
- RPORT Driver: Establishes connection dynamically, allowing multiple hosts to share access.

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8. Standards & Compliance

- Ethernet Standards: IEEE 802.3 10Base-T / 100Base-TX.
- Serial Standards: EIA/TIA RS232, RS422, RS485.
- Protocol Support: TCP/IP, UDP/IP, RFC2217 (Telnet COM Port Control).
- Operating System Support:
- Windows NT/2000/XP/Vista/7/8/10.
- Linux (kernel-level TTY driver).
- SCO UNIX (RTTY driver).
- Regulatory Compliance:
- CE and FCC Class A (industrial environment).
- RoHS compliant materials.

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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 electrical faults.

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

Maintenance Recommendations:
- Use only the supplied 5VDC adapter.
- Avoid exposure to extreme temperature or humidity.
- Periodically check firmware version and update as needed.

Related Models:
- APORT200: IP to 2 × RS232.
- APORT020: IP to 2 × isolated RS232.
- APORT101: IP to 1 × RS232 + 1 × RS422/485.
- APORT400: IP to 4 × RS232.
- APORT040: IP to 4 × isolated RS232.
- APORT800: IP to 8 × RS232.
- APORT080: IP to 8 × isolated RS232.
- IPORT134: IP to 4 × RS422/RS485.
- IPORT134I: IP to 4 × isolated RS422/RS485.
- IPORT118: IP to 8 × RS232/RS422/RS485.

Troubleshooting Highlights:
- Verify 5VDC power and LED indicators.
- Use console terminal (115200 bps, 8N1) for diagnostics.
- Confirm network connectivity via ping.
- Check serial port LEDs for TX/RX activity.
- Reset to factory defaults if configuration is lost.

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Summary

The Rayon IPort114 is a versatile, Linux-based IP-to-serial converter engineered for industrial and commercial communication systems. With four configurable RS232/RS422/RS485 ports, robust TCP/UDP networking, and cross-platform driver support, it bridges traditional serial devices with modern Ethernet networks. Its embedded Linux architecture ensures reliability, while flexible configuration options—via web, Telnet, or console—simplify deployment. The IPort114 is ideal for SCADA, automation, and remote monitoring applications requiring stable, high-speed serial communication over IP infrastructure.