1. Product Overview

Product Name: IPORT108P
Model: IPORT108P
Series: IPORT / APORT Series – IP to Serial Port Converters
Article Number: IPort108P
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 IPORT108P is a Linux-based IP device server designed to convert Ethernet (10/100Base-TX) communication into eight independent RS232 serial ports. It provides a robust and scalable solution for connecting multiple serial devices to an IP network, enabling remote access, control, and data exchange through TCP/IP or UDP/IP protocols. The device integrates a 32-bit MIPS RISC processor, embedded Linux OS, and comprehensive driver support for Windows, Linux, and UNIX systems.

---

2. Key Features

- Eight RS232 Ports: Provides 8 independent RS232 DB9 male connectors for serial communication.
- 5V Power Output on Pin 9: Each RS232 port can supply 5V DC power on pin 9, suitable for powering external serial devices such as barcode scanners or readers.
- Auto-Detecting Ethernet Interface: Supports 10/100 Mbps auto-negotiation for seamless LAN integration.
- Embedded Linux System: Ensures stability, flexibility, and remote configuration via web, Telnet, or console.
- Multiple Communication Modes: Supports TCP Server, TCP Client, UDP Send/Receive, and UDP Multi-Serial modes.
- Virtual COM Port Drivers: Compatible with Windows NT/2000/XP/Vista/7/8/10 systems, providing transparent serial communication over IP.
- Real TTY Drivers: Offers native TTY support for Linux and SCO UNIX environments.
- Web and Telnet Configuration: Enables remote setup and monitoring through browser or terminal interface.
- Current Limitation Protection: Built-in current limiting on 5V output to prevent overload or short-circuit damage.
- Console Port Sharing: Serial port 1 can function as a console port for system configuration.
- Compact Industrial Design: Rugged metal enclosure suitable for industrial and laboratory environments.
- Flexible Power Management: DTR signal controls 5V output activation; optional IPORT108P1 version provides continuous 5V output.

---

3. Technical Specifications

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

Serial Interface:
- Type: RS232
- Connector: DB9 male (x8)
- Baud Rate: Up to 230,400 bps
- Power Output: 5V DC on pin 9 (per port)
- Current Limitation: Built-in protection against overload
- Control Signal: DTR used to toggle 5V output ON/OFF

Network Interface:
- Type: 10/100 Mbps Ethernet (Auto-detecting)
- Standard: IEEE 802.3 10Base-T / 100Base-TX
- Connector: RJ45

Power Requirements:
- Input Voltage: 5 VDC
- Current Consumption: 1.2–1.6 A (typical 1600 mA for logic)
- Power Adapter: UP110/UP220 (5VDC regulated supply)

Physical Characteristics:
- Dimensions: 205 mm (W) × 135 mm (D) × 48 mm (H)
- Weight: Approx. 0.8–1.0 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

---

4. Functionality

The IPORT108P functions as an IP-to-serial converter, bridging Ethernet-based communication with up to eight RS232 devices. Each serial port can be configured independently for different communication modes, allowing flexible integration into diverse networked environments.

Operating Modes:
- TCP Server Mode: The device listens for incoming TCP connections from remote clients. Ideal for centralized control systems.
- TCP Client Mode: Initiates a connection to a designated server IP and port, suitable for data acquisition or remote logging.
- UDP Send/Receive Mode: Enables broadcast or point-to-point communication with up to four remote hosts.
- UDP Multi-Serial Mode: Allows multiple serial ports to share the same UDP port number for simultaneous data distribution.
- Real TTY Mode: Provides direct serial access for UNIX/Linux systems using GVMODEM or COM Real TTY drivers.

Use Cases:
- Industrial automation and control systems
- Barcode readers and POS terminals
- Laboratory instrumentation and data acquisition
- Remote serial device management
- Legacy RS232 equipment integration into IP networks

Compatibility:
- Windows: NT, 2000, XP, Vista, 7, 8, 10 (Virtual COM driver)
- Linux: Raw TTY driver (GVMODEM)
- SCO UNIX: Real TTY (RTTY) driver
- Network Protocols: TCP/IP, UDP/IP, RFC2217 (Telnet COM redirection)

---

5. Components & Accessories

Included Items:
- IPORT108P main unit
- 5VDC power adapter (UP110 or UP220)
- User manual and software CD (drivers, utilities, documentation)

Optional Accessories:
- Console cable (RS232 DB9)
- Mounting brackets or DIN-rail kit
- Replacement power supply
- Firmware upgrade utilities (via TFTP or web interface)

Connectors:
- Ethernet: RJ45 (10/100Base-TX)
- Serial Ports: 8 × DB9 male connectors
- Power Input: DC jack (5VDC)

---

6. Installation & Setup

Hardware Installation:
1. Connect the IPORT108P to a LAN hub or switch using a standard Ethernet cable.
2. Attach the 5VDC power adapter and verify the power LED is lit.
3. Connect RS232 devices to the DB9 ports.
4. Optionally, connect a console terminal to serial port 1 for direct configuration (115200 bps, 8N1).

Configuration Methods:
- Web Interface: Access via browser using the default IP (192.168.1.254) and password “11111”.
- Telnet Setup: Configure network and serial parameters through Telnet session.
- Console Setup: Use terminal connection for low-level configuration.

Software Setup:
- Install the appropriate driver (TPORT or RPORT) on the host system.
- Use configuration utilities (aport_ap.exe or tport_ap.exe) to map virtual COM ports to the IPORT108P’s IP and port numbers.
- Assign static IP addresses for stable operation (DHCP not recommended).

DIP Switch Settings (if applicable):
- Bit 1: Console port enable (ON = console, OFF = normal serial port 1)
- Bit 2: Firmware upgrade mode (ON = upgrade, OFF = normal)

---

7. Performance & Capabilities

- Data Rate: Up to 230.4 kbps per serial channel
- Network Throughput: 10/100 Mbps auto-negotiation
- Latency: Dependent on network conditions; optimized for low-latency serial data exchange
- Concurrent Connections: Supports multiple simultaneous TCP/UDP sessions (one per serial port)
- Power Output Control: DTR signal toggles 5V output; optional continuous output in IPORT108P1 variant
- Reliability: Embedded Linux OS ensures stable long-term operation
- Efficiency: Low power consumption (≤8W typical)
- Limitations:
- Serial port 1 doubles as console port (cannot be used simultaneously for data and console).
- Network latency may affect timing-sensitive applications; adjustable TCP delay parameter available.

---

8. Standards & Compliance

- Ethernet Standards: IEEE 802.3 10Base-T / 100Base-TX
- Serial Communication: RS232 (EIA/TIA-232 standard)
- Protocol Support: TCP/IP, UDP/IP, RFC2217 (Telnet COM port control)
- Operating System Drivers:
- Windows Virtual COM (TPORT/RPORT)
- Linux GVMODEM (Real TTY)
- SCO UNIX RTTY (Real TTY)
- Firmware Upgrade: TFTP-based upgrade supported
- Safety & Quality: Designed for industrial-grade reliability; conforms to Rayon internal QC standards

---

9. Additional Information

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

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

Firmware Upgrade Procedure:
- Enter firmware upgrade mode via DIP switch (bit 2 ON).
- Connect via console terminal (115200 bps).
- Use TFTP client or Rayon’s “wftp8.exe” utility to upload new firmware image.
- Default upgrade IP: 192.168.1.254

Maintenance Tips:
- Use only 5VDC regulated power supply (UP110/UP220).
- Avoid exposure to excessive heat or humidity.
- Regularly back up configuration settings.
- Use “ping” or built-in diagnostics to verify network connectivity.

Related Models in the APORT/IPORT Series:
- APORT200: IP to 2×RS232 converter
- APORT020: IP to 2×ground-isolated RS232 converter
- APORT400: IP to 4×RS232 converter
- APORT800: IP to 8×RS232 converter
- APORT080: IP to 8×ground-isolated RS232 converter
- IPORT138I: IP to 8×ground-isolated RS422/485 converter
- IPORT114: IP to 4×RS232/RS422/RS485 converter
- IPORT138: IP to 8×RS422/RS485 converter

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.

Driver Options:
- TPORT Driver: Maintains persistent TCP connection for dedicated Windows system use.
- RPORT Driver: Establishes connection dynamically when COM port is opened, allowing multi-user access.

Application Example:
Used in production lines (e.g., iPhone 7 test equipment) to connect multiple serial instruments over LAN, replacing traditional USB or PCI serial expansion cards.

---

Summary

The Rayon IPORT108P is a high-performance, Linux-based IP-to-serial converter that bridges Ethernet networks with up to eight RS232 devices. It combines industrial reliability, flexible configuration, and multi-platform driver support, making it ideal for automation, testing, and remote device management. With integrated 5V power output, robust protection, and comprehensive software tools, the IPORT108P provides a complete solution for extending legacy serial communication into modern IP-based infrastructures.