- **Four-Port Serial Expansion:** Provides 3 × RS-232 and 1 × RS-422 serial ports via RJ45 connectors. - **PCI Bus Interface:** Fully compliant with PCI Local Bus Specification Rev. 2.1, supporting both 5V and 3.3V PCI slots. - **Plug & Play Configuration:** Automatic resource allocation (I/O address and IRQ) by PCI BIOS; no manual configuration required. - **High-Speed Communication:** Supports baud rates up to 115.2 Kbps (standard) or 921.6 Kbps with optional 14.7456 MHz crystal. - **Intelligent Serial Controller:** 16C550A-compatible UART with 16-byte transmit and receive FIFO buffers per port, reducing CPU load and improving throughput. - **Multi-Card Support:** Up to 8 cards per system, allowing up to 32 serial ports in one PC. - **Flexible Interface Options:** Supports RS-232, RS-422, and RS-485 signaling standards through jumper or DIP switch configuration. - **Surge and Isolation Options:** Compatible with Rayon’s RS4232-4 and RS4232-8 isolation boxes for galvanic isolation and surge protection. - **Comprehensive OS Support:** Drivers available for Windows 95/98/Me, Windows NT4.0, Windows 2000/XP, DOS, Linux, and SCO OpenServer. - **Industrial Reliability:** Designed for continuous operation in industrial environments with robust PCB design and EMI-resistant components. - **RJ45 Connectivity:** Compact RJ45 connectors simplify cabling and integration into structured wiring systems.

Manufacturer: Rayon

Category: RS232 Mixed RS485 / RS422 4-Ports PCI

- **Multi-Port Serial Expansion:** Provides four independent serial communication ports—three RS-232 and one RS-422/RS-485 (isolated)—for connecting multiple serial devices to a single PCI slot. - **Intelligent PCI Interface:** Utilizes an ASIC-based PCI controller that fully implements PCI Local Bus Specification Rev. 2.1, ensuring automatic configuration of I/O addresses and interrupts via the system BIOS. - **High Compatibility:** Each port is 16550A UART compatible, supporting standard serial communication protocols and baud rates from 50 to 115,200 bps. - **Auto Data Direction Control (ADDC):** The RS-485 port includes automatic data direction control for half-duplex communication, eliminating the need for manual RTS signal management. - **Plug & Play Configuration:** IRQ and I/O address assignments are automatically managed by the PCI BIOS, simplifying installation and avoiding resource conflicts. - **Shared IRQ Support:** Multiple PCIPORT cards can share a single IRQ, allowing up to eight cards per system for a total of 32 serial ports. - **Flexible Connector Options:** Includes a DB37 female connector on the card and a breakout cable (DB37F to 4×DB9M standard, or 4×DB25M optional). - **Cross-Platform Driver Support:** Compatible with DOS, Windows 95/98/ME/NT/2000/XP, Linux, and SCO OpenServer. - **Industrial-Grade Design:** Built with high-quality components and optional isolation for RS-422/RS-485 communication, ensuring reliable operation in electrically noisy environments.

Manufacturer: Rayon

Category: RS232 Mixed RS485 / RS422 4-Ports PCI

- **Multi‑Interface Design:** Provides **3×RS‑422** and **1×RS‑232** serial ports via RJ45 connectors, supporting both balanced and unbalanced communication standards. - **PCI Plug‑and‑Play Architecture:** Fully compliant with **PCI Local Bus Specification Rev. 2.1**, supporting automatic resource assignment (I/O address, IRQ) by the system BIOS. No manual configuration required. - **High‑Performance Serial Controller:** Utilizes a **16C550A‑compatible UART** with **16‑byte transmit and receive FIFOs**, minimizing CPU interrupts and improving throughput. - **Flexible Baud Rate Support:** Software‑programmable baud rates up to **115.2 kbps** (with 1.8432 MHz crystal) or **921.6 kbps** (with 14.7456 MHz crystal). - **Hardware and Software Flow Control:** Supports **RTS/CTS** and **XON/XOFF** flow control for reliable data transmission. - **Universal PCI Voltage Support:** Operates in both **5 V and 3.3 V PCI slots** (Universal PCI design). - **Operating System Compatibility:** Drivers available for **Windows 95/98/Me/NT/2000/XP**, **DOS**, **Linux**, and **SCO OpenServer**. - **Industrial‑Grade Reliability:** Designed for continuous operation in PC/AT‑compatible systems, with robust electrical design and optional isolation via external RS4232 converter boxes. - **RJ45 Connector Interface:** Compact RJ45 connectors simplify cabling and reduce space requirements compared to DB‑type connectors.

Manufacturer: Rayon

Category: RS232 4-Ports

- **Four Independent RS232 Ports:** Each port is 16550A-compatible, supporting buffered transmit and receive channels with 16-byte FIFOs. - **High-Speed Communication:** Software-programmable baud rates up to 115.2 Kbps (1.8432 MHz crystal) or up to 921.6 Kbps (14.7456 MHz crystal). - **Plug & Play PCI Interface:** Fully compliant with PCI Local Bus Specification Rev. 2.1. Automatic resource assignment (I/O address, IRQ) by PCI BIOS. - **Shared Interrupt Support:** One sharable IRQ mapping for all ports, reducing system resource usage. - **Flexible I/O Mapping:** 6 × 8-byte I/O address blocks assigned by PCI BIOS. - **Universal PCI Compatibility:** Operates in both 5V and 3.3V PCI slots (universal card design). - **Comprehensive OS Support:** Drivers available for DOS, Windows 95/98/ME/NT/2000/XP, Linux, and SCO OpenServer. - **Expansion Connectivity:** Includes a DB37 female connector on the card, with an expansion cable (DB37F to 4×DB9M or optional 4×DB25M). - **Multi-Card Support:** Up to two P984 cards can be installed per system, providing up to eight serial ports. - **Flow Control Options:** Supports both hardware (RTS/CTS) and software (Xon/Xoff) flow control. - **Compact Design:** Optimized for industrial and embedded PC applications requiring multiple serial interfaces.

Manufacturer: Rayon

Category: RS232 4-Ports

- **Four Independent RS232 Ports:** Each port supports asynchronous serial communication with full modem control signals. - **16550A-Compatible UARTs:** Each channel includes a 16-byte transmit and receive FIFO buffer for efficient data handling and reduced CPU load. - **Plug & Play PCI Interface:** Fully compliant with PCI Local Bus Specification Rev. 2.1; automatic resource allocation (I/O address, IRQ) by BIOS. - **Shared IRQ Support:** Multiple PCI cards can share a single interrupt line, simplifying system integration. - **High-Speed Communication:** Supports baud rates up to 115.2 kbps (1.8432 MHz crystal) or up to 921.6 kbps (14.7456 MHz crystal). - **Flexible Flow Control:** Supports both hardware (RTS/CTS) and software (XON/XOFF) flow control. - **Comprehensive OS Support:** Compatible with legacy and modern operating systems, including Windows 2000/XP/7, Linux, DOS, and SCO. - **Expandable System Design:** Up to two P584 cards can be installed in a single system, providing up to eight serial ports. - **Universal PCI Compatibility:** Operates in both 5 V and 3.3 V PCI slots (universal version P584U). - **Optional Isolation and Conversion:** Compatible with the RS4232-4 isolation box for converting RS232 signals to isolated RS232/RS422/RS485 interfaces. - **Compact Form Factor:** Designed for standard PCI slots with a small footprint suitable for industrial and embedded applications.

Manufacturer: Rayon

Category: RS232 4-Ports

- **Four Independent RS232 Ports:** Provides four fully functional RS232 serial channels through RJ45 connectors, enabling simultaneous multi-device communication. - **PCI Plug & Play Interface:** Fully compliant with PCI Local Bus Specification Rev. 2.1, supporting automatic resource allocation (I/O address and IRQ) by the system BIOS. - **Intelligent Serial Controller:** Incorporates a 16C550A-compatible UART with 16-byte transmit and receive FIFOs, reducing CPU load and improving throughput. - **High-Speed Communication:** Supports baud rates up to 115.2 Kbps with a 1.8432 MHz crystal or up to 921.6 Kbps with a 14.7456 MHz crystal. - **Flexible Flow Control:** Supports both hardware (RTS/CTS) and software (Xon/Xoff) flow control. - **Universal PCI Compatibility:** Operates in both 5V and 3.3V PCI slots, ensuring compatibility with a wide range of PC architectures. - **Multi-OS Driver Support:** Compatible with Windows 95/98/Me, Windows NT, Windows 2000/XP, DOS, Linux, and SCO OpenServer. - **Expandable and Configurable:** Supports multiple card installations (up to two per system) with jumper-based card numbering for consistent COM port assignment. - **Industrial-Grade Reliability:** Designed for continuous operation in industrial environments with robust electrical design and optional isolation via external RS4232 converter boxes. - **RJ45 Connectivity:** Compact RJ45 connectors simplify cabling and integration in structured wiring environments.

Manufacturer: Rayon

Category: RS232 4-Ports

- **Four RS422 Serial Ports:** Each port supports full-duplex RS422 communication for industrial and automation applications requiring long-distance, noise-resistant serial links. - **16550A UART Compatibility:** Each port integrates a 16C550A-compatible UART with 16-byte transmit and receive FIFOs, ensuring efficient data buffering and reduced CPU interrupts. - **High-Speed Communication:** Supports baud rates from 50 bps up to 115,200 bps (standard 1.8432 MHz crystal) or up to 921,600 bps with optional 14.7456 MHz crystal. - **Plug & Play PCI Interface:** Fully compliant with PCI Local Bus Specification Rev. 2.1. All I/O addresses, IRQs, and memory mappings are automatically assigned by the PCI BIOS. - **Shared IRQ Support:** Allows multiple PCI cards to share a single interrupt request line, optimizing system resource allocation. - **Flexible Flow Control:** Supports both hardware (RTS/CTS) and software (XON/XOFF) flow control mechanisms. - **Comprehensive OS Support:** Compatible with DOS, Windows 95/98/ME/NT/2000/XP, Linux, and SCO OpenServer. - **Expansion Cable Included:** Ships with a DB37 female to 4×DB9 male breakout cable (DB25 male version available on request as P985-25). - **Dual-Card System Support:** Up to two P985 cards can be installed in a single system, providing up to eight RS422 ports. - **Compact Design:** PCB dimensions of 121 mm × 102 mm, suitable for standard PCI slots. - **Industrial-Grade Reliability:** Engineered for stable operation in industrial and embedded PC environments.

Manufacturer: Rayon

Category: RS485 / RS422 4-Po

- **Eight-Port Serial Expansion:** Provides 7 × RS-232 ports and 1 × isolated RS-422/RS-485 port with ADDC for flexible serial connectivity. - **High Compatibility:** Fully compatible with **16550A UART** standard, ensuring broad software and hardware interoperability. - **Plug & Play PCI Interface:** Automatic resource allocation (IRQ and I/O mapping) by PCI BIOS; no manual configuration required. - **Shared IRQ Support:** Allows multiple PCI cards to share a single interrupt, optimizing system resource usage. - **High-Speed Communication:** Supports baud rates from **50 bps up to 115.2 Kbps** (standard 1.8432 MHz crystal) and up to **921.6 Kbps** with optional 14.7456 MHz crystal. - **Isolated RS-422/RS-485 Port:** One port provides galvanic isolation for industrial environments, supporting both RS-422 and RS-485 modes with automatic data direction control. - **Multi-OS Driver Support:** Compatible with **DOS, Windows 95/98/ME/NT/2000/XP, Linux, SCO OpenServer**, and **Windows 7** (using Windows 2000/XP/Vista drivers). - **Flexible Connector Options:** Uses a **DB62 female connector** on the card, with included **DB62M-to-8×DB9M** cable (DB25M version available on request). - **Scalable System Integration:** Supports up to **8 cards per system**, enabling a total of 64 serial ports in one PC. - **Industrial-Grade Design:** Built with high-quality components and isolation features for reliable operation in demanding environments.

Manufacturer: Rayon

Category: RS232 Mixed RS485 / RS422 8-Port

- **Eight Independent RS232 Ports:** Provides eight fully functional serial ports, each compliant with RS232C standards. - **16550A-Compatible UARTs:** Each port integrates a 16C550A-compatible UART with 16-byte transmit and receive FIFOs, minimizing CPU interrupts and improving data throughput. - **Plug & Play PCI Interface:** Fully compliant with PCI Local Bus Specification Rev. 2.1. Automatic resource assignment (I/O address, IRQ) by PCI BIOS—no manual configuration required. - **High-Speed Communication:** Supports baud rates from 50 bps up to 115.2 kbps (standard 1.8432 MHz crystal) or up to 921.6 kbps with optional 14.7456 MHz crystal. - **Shared IRQ Support:** Multiple PCI cards can share a single interrupt line, optimizing system resource usage. - **Flexible Flow Control:** Supports both hardware (RTS/CTS) and software (XON/XOFF) flow control. - **Comprehensive OS Support:** Compatible with DOS, Windows 95/98/ME/NT/2000/XP, Linux, SCO OpenServer, and QNX 6.0 (via built-in driver). - **Expandable and Scalable:** Up to two P588 cards can be installed in a single system, providing up to 16 serial ports. - **Optional Isolation and Conversion:** Compatible with RAYON RS4232-8 isolation box for conversion to isolated RS232/RS422/RS485 interfaces. - **Compact Design:** Board dimensions of 141 mm × 106 mm allow installation in standard PCI slots. - **Comprehensive Accessory Set:** Includes R804 cable (DB62 → 8 × DB9 M). Optional R801 (DB62 → 8 × DB25 M) and R803 (DB62 → DB62 M) cables available.

Manufacturer: Rayon

Category: RS232 8-Port

- **High-Performance RISC Architecture:** Built-in 133 MHz TMPR3927 MIPS RISC processor for efficient I/O management and reduced host CPU load. - **Large Dual-Port Memory:** 16 MB SDRAM shared between local processor and host system for high-speed data buffering. - **Flexible Port Expansion:** Supports 8 to 64 serial ports via external connector boxes (NF116, NF216, NF316, F641/F642, A641/A642, etc.). - **Universal PCI Compatibility:** Operates in both 3.3 V and 5 V PCI slots; compatible with 33 MHz PCI bus and 64-bit PCI environments. - **Multi-Interface Support:** RS-232C, RS-422, and RS-485 interfaces selectable per port via DIP switches on connector boxes. - **Advanced UART Control:** FIFO-type 16C554 UART controllers in each connector box ensure stable, high-speed serial communication. - **Scalable Daisy-Chain Architecture:** Up to eight external boxes can be chained per card, each supporting 8 or 16 ports, for a total of 64 ports. - **Cross-Platform Driver Support:** Drivers available for DOS, Windows 95/98/Me, NT, 2000, XP, Vista, Windows 7, Linux, and SCO OpenServer. - **Industrial Reliability:** Operating temperature 5 °C – 40 °C; humidity 10 – 90 % RH; designed for continuous multi-user environments.

Manufacturer: Rayon

Category: PCI max 128 Serial

- **High-Performance Embedded Processor:** Equipped with a 133 MHz TMPR3927 MIPS RISC processor for efficient data handling and reduced host CPU load. - **Large Dual-Port Memory:** 16 MB SDRAM shared between the local processor and host system for high-speed data buffering and communication. - **Flexible Port Expansion:** Supports 8 to 64 serial ports via daisy-chained external connector boxes (NF116, NF216, NF316, F641/F642, R641/R642, A641/A642). - **Universal PCI Compatibility:** Operates in both 3.3 V and 5 V PCI slots, ensuring compatibility with legacy and modern systems. - **Multi-Interface Support:** Configurable for RS‑232C, RS‑422, or RS‑485 communication through DIP switch settings on connector boxes. - **Advanced UART Control:** Each port uses a FIFO-type 16C554 UART controller for stable, high-speed serial communication. - **High-Speed Data Transmission:** Supports baud rates from 110 bps to 230,400 bps (typical operation up to 115,200 bps; UNIX mapping supports 50/75/150 bps for 57,600/76,800/115,200 bps). - **Operating System Support:** Drivers available for DOS, Windows 95/98/Me, Windows NT/2000/XP/Vista/7, Linux, and SCO OpenServer. - **Scalable Architecture:** Up to two IOP3927 cards can be installed per system, each supporting up to eight external boxes for a total of 128 ports. - **Industrial Reliability:** Designed for continuous operation in industrial and multi-user environments with robust hardware and software support.

Manufacturer: Rayon

Category: PCI max 128 Serial

- **Intelligent Onboard Processor:** Built-in 80286-20 MHz CPU offloads serial communication tasks from the host CPU, improving system performance. - **Scalable Port Configuration:** Supports configurations from **8 up to 64 serial ports** via daisy-chained connector boxes (NF116, NF216, NF316). - **Advanced UART Control:** Each connector box integrates a **FIFO-type 16C554 UART controller**, ensuring efficient data buffering and reduced latency. - **Flexible Interface Support:** Each port can be configured individually for **RS232, RS422, or RS485** communication via DIP switches. - **PCI Bus Compatibility:** Operates in **5V 33 MHz PCI slots**, with automatic memory mapping (8 KB I/O space assigned by PCI BIOS). - **Multi-OS Driver Support:** Compatible with **Linux, SCO OpenServer, DOS, Windows 95/98/Me, NT, 2000, XP, Vista, and Windows 7**. - **High Integration:** Each card uses only **one IRQ** for all ports, optimizing system resource allocation. - **Expandable Architecture:** Supports up to **two cards per system**, allowing a total of 128 serial ports in one PC. - **Industrial Reliability:** Designed for continuous operation in industrial environments with wide temperature and humidity tolerance. - **Connector Type:** DB37 male connector on the card; DB9 male connectors on external boxes.

Manufacturer: Rayon

Category: PCI max 128 Serial

- **Intelligent PCI Processor Architecture:** The P640N incorporates an onboard intelligent processor that offloads serial communication tasks from the host CPU, improving system performance and reducing latency. - **Scalable Port Configuration:** Supports configurations from **8 up to 64 serial ports** via daisy-chained connector boxes (NF116, NF216, NF316). Each box provides 16 ports. - **Flexible Interface Support:** Each serial port can be configured individually as **RS232, RS422, or RS485** using DIP switches, allowing mixed interface environments on a single card. - **Advanced FIFO UART Control:** Built-in **FIFO-type 16C554 UART** controllers ensure efficient data buffering and high-speed communication with minimal CPU overhead. - **PCI Bus Compatibility:** Designed for **5V 33MHz PCI slots**, with BIOS-assigned memory or I/O mapping. Supports both **2×4KB memory map** or **256B/64B I/O map** configurations. - **Operating System Support:** Comprehensive driver support for **DOS, Windows 95/98/Me/NT/2000/XP/Vista/7**, **Linux**, and **SCO OpenServer**. - **High-Speed Communication:** Each port supports baud rates from **110 to 115,200 bps**, with software and hardware flow control options. - **Expandable System Architecture:** Up to **two P640N cards per system**, each supporting up to **four connector boxes** for a total of **64 ports per card**. - **Industrial-Grade Design:** Rugged construction with wide environmental tolerance, suitable for continuous operation in industrial and commercial environments.

Manufacturer: Rayon

Category: PCI max 128 Serial

- **Intel 80960JF RISC Processor:** Embedded high-performance CPU for intelligent I/O management, offloading serial communication tasks from the host CPU. - **Scalable Port Architecture:** Supports configurations from **8 up to 64 serial ports** via daisy-chained connector boxes. - **Advanced UART Control:** Built-in **FIFO-type UART controller** (16C554) ensures stable, high-speed serial communication. - **Flexible Interface Support:** Each port can be configured as **RS232, RS422, or RS485** using DIP switches. - **PCI Bus Compatibility:** Operates in **5V, 33MHz PCI slots**, with automatic resource assignment by the PCI BIOS. - **Multi-OS Support:** Compatible with **Windows NT/2000/XP**, **Linux**, and **SCO OpenServer**. - **High Integration:** 8KB mapped memory for I/O, assigned dynamically by the PCI BIOS. - **Expandable System:** Supports up to **two P990F cards per system**, enabling up to 128 serial ports in a single PC. - **Industrial-Grade Design:** Rugged construction with DB37 male connector and modular external boxes for flexible deployment. - **Optimized for Multi-User Systems:** Reduces main CPU load by handling I/O communication independently.

Manufacturer: Rayon

Category: PCI max 128 Serial

- **Dual-Port PCI Serial Interface:** Provides two independent serial communication ports—one fixed RS232 and one configurable isolated port supporting RS232, RS422, or RS485 modes. - **Ground Isolation:** The first port features galvanic isolation to protect connected devices from ground loops, voltage spikes, and electrical noise, ensuring stable operation in industrial environments. - **Configurable Communication Modes:** Port 1 can be easily switched between RS232, RS422, and RS485 modes using an onboard DIP switch, allowing flexible deployment across various serial communication standards. - **High Compatibility:** Fully compatible with PCI 2.2 specifications and supports both 5V and 3.3V PCI bus slots, ensuring broad compatibility with legacy and modern PC architectures. - **ASIX MCS9865 Controller:** Each port is driven by an ASIX MCS9865 UART controller, providing advanced serial communication capabilities, high data integrity, and compatibility with standard 16950A UART features. - **Wide Baud Rate Range:** Supports baud rates from 50 bps up to 115,200 bps, suitable for a wide range of serial communication devices and protocols. - **Plug & Play Configuration:** I/O address, memory mapping, and IRQ assignments are automatically managed by the PCI BIOS, simplifying installation and eliminating resource conflicts. - **Operating System Support:** Compatible with major operating systems including Windows 2000, XP, Vista, Windows 7/8, and Linux distributions, ensuring broad software integration. - **Industrial-Grade Design:** Designed for industrial control and automation systems, featuring robust construction, wide operating temperature range, and high humidity tolerance. - **Compact Form Factor:** Standard PCI card dimensions (100 × 97 mm) with optional low-profile brackets available upon request for compact system integration.

Manufacturer: Rayon

Category: RS485 / RS422 1-2-Port

- **Isolated PCI Serial Interface:** Provides one isolated RS232 communication port with dual mirrored outputs for redundancy or parallel communication. - **Dual Mirror Functionality:** Two DB9 male connectors mirror a single COM port, allowing simultaneous connection for polling and acknowledgment (Poll & Ack) applications. - **Flexible Interface Configuration:** Each connector can be independently configured via DIP switches to operate as RS232, RS422, or RS485 (depending on model variant). - **High Compatibility:** Fully compatible with 5V or 3.3V PCI bus slots, ensuring broad system integration. - **Plug & Play Operation:** Automatic I/O, memory, and IRQ mapping assigned by PCI BIOS for simplified installation. - **Industrial-Grade Design:** Built for industrial control systems requiring stable and isolated serial communication. - **Wide OS Support:** Compatible with Windows 2000, XP, Vista, Windows 7/8, and Linux operating systems. - **High-Speed Communication:** Supports baud rates from 50 to 115,200 bps per port. - **Compact Form Factor:** Standard PCI card dimensions with optional low-profile bracket for space-constrained systems. - **Durable Construction:** Manufactured using high-quality materials for long-term reliability in industrial environments.

Manufacturer: Rayon

Category: Sharer/Converter 1-2 Ports

- **Dual-Port Shared Design:** Two COM ports share a single RS232 connector, enabling simultaneous data monitoring and communication. - **Selectable Interface Configuration:** Each port can be configured independently via DIP switches to operate as RS232, RS422, or RS485 (depending on model variant). - **Isolation and Reliability:** Electrical isolation enhances signal integrity and protects connected devices from ground loops and electrical noise. - **High Compatibility:** Fully compatible with standard PCI bus architecture (5V or 3.3V slots). - **Plug-and-Play Operation:** Automatic I/O, memory, and IRQ mapping assigned by the PCI BIOS. - **Flexible Baud Rate Support:** Configurable baud rates from **50 to 115,200 bps** per port. - **Industrial-Grade Design:** Suitable for industrial control systems, automation, and data acquisition environments. - **Compact Form Factor:** Standard PCI card dimensions with optional low-profile bracket for space-constrained installations. - **Cross-Platform Support:** Compatible with Windows 2000, XP, Vista, Windows 7/8, Linux, and other operating systems. - **Durable Construction:** Built with high-quality materials for long-term reliability in demanding environments.

Manufacturer: Rayon

Category: Sharer/Converter 1-2 Ports

- **Dual Mirror Port Design:** Shares one logical COM port across two physical connectors, enabling simultaneous mirrored communication for polling and acknowledgment (Poll & Ack) environments. - **Multi-Protocol Support:** Each connector can be independently configured via DIP switch to operate as RS232, RS422, or RS485, providing maximum flexibility for mixed serial communication environments. - **Hardware Isolation:** Electrical isolation between the PCI bus and serial interfaces enhances system reliability and protects against ground loops and electrical noise, critical for industrial applications. - **High Compatibility:** Fully compatible with 5V PCI bus slots and supports a wide range of operating systems including Windows 2000, XP, Vista, Windows 7/8, and Linux distributions. - **Plug & Play Configuration:** Automatic I/O, memory, and IRQ resource assignment by the PCI BIOS simplifies installation and eliminates manual configuration. - **High-Performance Serial Controller:** Utilizes the ASIX MCS9865 serial communication controller, providing advanced UART functionality and compatibility with 16950A standards for reliable high-speed data transfer. - **Flexible Baud Rate Range:** Supports baud rates from 50 to 115,200 bps, suitable for both legacy and modern serial communication requirements. - **Industrial-Grade Design:** Designed for continuous operation in industrial environments with wide temperature and humidity tolerance. - **Compact Form Factor:** Standard PCI bracket dimensions (100 × 97 mm) with optional low-profile bracket available upon request.

Manufacturer: Rayon

Category: Sharer/Converter 1-2 Ports

- **Single-Port Multi-Protocol Serial Interface:** Supports RS-232, RS-422, and RS-485 communication standards on a single port, selectable via DIP switch. - **Electrical Isolation:** Provides galvanic isolation between the PCI bus and the serial interface, protecting host systems from voltage spikes, ground loops, and electrical noise. - **High Compatibility:** Fully compatible with the **ASIX MCS9865** chipset and **16950A UART** architecture, ensuring stable operation and broad driver support. - **Flexible Baud Rate Range:** Supports data rates from **50 bps up to 230,400 bps**, accommodating both low-speed and high-speed serial communication requirements. - **Plug & Play PCI Interface:** Automatic I/O, memory, and IRQ resource assignment via PCI BIOS, simplifying installation and configuration. - **Dual Connector Option:** Equipped with **two DB9 male connectors**, providing flexible cabling and connection options for various serial devices. - **Low Profile Bracket Option:** Available with optional low-profile brackets for compact or space-constrained PC enclosures. - **Operating System Support:** Compatible with **Windows 2000, XP, Vista, Windows 7, Linux, and SCO UNIX**, ensuring cross-platform deployment. - **Single Voltage Operation:** Designed for **5V-only PCI slots**, ensuring stable operation in standard PCI environments. - **Compact Form Factor:** Small PCB footprint of **75 mm x 90 mm**, suitable for integration into standard and industrial PCs.

Manufacturer: Rayon

Category: RS485 / RS422 1-2-Port

- **Multi-Interface Support:** Each connector can be configured individually for RS232, RS422, or RS485 communication modes using onboard DIP switches. - **Shared Port Architecture:** Two DB9 male connectors share a single COM port, enabling Poll & Acknowledge (Poll & Ack) communication environments where multiple devices communicate sequentially through a shared channel. - **High Compatibility:** Fully compatible with Windows 2000, XP, Vista, Windows 7/8, and Linux operating systems. - **Plug-and-Play PCI Integration:** Automatic I/O, memory, and IRQ mapping assigned by the PCI BIOS ensures seamless installation without manual configuration. - **Industrial-Grade Design:** Designed for industrial control and automation systems requiring robust and isolated serial communication. - **ASIX MCS9865 Controller:** Incorporates the MCS9865 UART controller, providing high-performance serial communication with 16950A compatibility and FIFO buffering for stable data transmission. - **Electrical Isolation:** Provides galvanic isolation between the PCI bus and serial interface, protecting host systems from electrical surges and ground loops. - **Single Voltage Operation:** Operates exclusively on a 5V PCI bus, ensuring stable performance in legacy and industrial PC environments. - **Compact Form Factor:** Dimensions of 75 × 90 mm make it suitable for space-constrained installations; low-profile brackets are available upon request. - **Flexible Configuration:** DIP switch configuration allows users to select interface type and communication parameters easily.

Manufacturer: Rayon

Category: Sharer/Converter 1-2 Ports

- **Dual Mirrored Serial Ports:** Provides two RS422/RS485 ports that mirror a single COM port, enabling simultaneous communication in **poll-and-acknowledge (Poll & Ack)** environments. - **Flexible Interface Configuration:** Each connector can be independently configured via **DIP switches** to operate as **RS232, RS422, or RS485**, depending on the model variant. - **High Compatibility:** Fully compatible with **ASIX MCS9865** serial communication controller, ensuring stable performance and broad driver support. - **Plug & Play PCI Interface:** Automatic **I/O, memory, and IRQ mapping** assigned by the PCI BIOS, simplifying installation and system integration. - **Industrial-Grade Design:** Designed for **industrial control applications**, offering reliable operation under demanding environmental conditions. - **Wide OS Support:** Compatible with **Windows 2000, XP, Vista, Windows 7/8**, and **Linux**, ensuring flexibility across legacy and modern systems. - **Compact Form Factor:** Standard PCI card dimensions of **100 × 97 mm**, with optional **low-profile brackets** available upon request. - **Single Voltage Operation:** Operates exclusively on **5V PCI slots**, ensuring stable power delivery and compatibility with standard PCI architectures. - **High-Speed Communication:** Supports baud rates from **50 to 115,200 bps**, suitable for a wide range of serial communication applications. - **Dual DB9 Connectors:** Equipped with **two DB9 male connectors**, providing robust and standardized physical interfaces for serial communication.

Manufacturer: Rayon

Category: Sharer/Converter 1-2 Ports

- **Single-Port PCI Serial Interface:** Provides one isolated serial communication port supporting RS422 or RS485 standards. - **Electrical Isolation:** Built-in galvanic isolation between the PC system and external devices enhances noise immunity and protects against ground loops. - **Mixed Settable Interface:** Each port can be configured independently via DIP switch for RS422 or RS485 operation, allowing flexible deployment in diverse communication environments. - **High-Speed Data Transfer:** Supports baud rates from 50 bps up to 230,400 bps, ensuring compatibility with both legacy and modern serial devices. - **Advanced UART Controller:** Utilizes the 16950A-compatible ASIX MCS9865 chip, providing 128-byte transmit and receive FIFOs for efficient data buffering and reduced CPU load. - **Plug & Play PCI Configuration:** I/O address, memory mapping, and IRQ assignments are automatically managed by the PCI BIOS, simplifying installation and avoiding resource conflicts. - **Dual DB9 Connectors:** Equipped with two DB9 male connectors for flexible connection options. - **Low Profile Option:** Optional low-profile bracket available for compact or embedded system installations. - **Operating System Support:** Compatible with Windows 2000, XP, 2003, Vista, Windows 7, and Linux distributions. - **Single Voltage Operation:** Designed for 5V-only PCI slots, ensuring stable operation in standard PC/AT environments. - **Compact Design:** PCB dimensions of 100 mm × 97 mm, suitable for space-constrained industrial PCs.

Manufacturer: Rayon

Category: RS485 / RS422 2-Ports

- **Isolated Serial Communication:** Provides galvanic isolation for one RS422/RS485 port, ensuring protection against ground loops and electrical noise in industrial environments. - **Shared Port Architecture:** Two DB9 male connectors share a single COM port, enabling Poll & Acknowledge (Poll & Ack) communication schemes commonly used in industrial control systems. - **Flexible Interface Configuration:** Each connector can be independently configured for RS422 or RS485 operation using onboard DIP switches. - **High Compatibility:** Fully compatible with standard PCI bus architecture (5V only) and supports a wide range of operating systems including Windows 2000, XP, Vista, 7, 8, and Linux distributions. - **Plug & Play Operation:** Automatic I/O, memory, and IRQ resource allocation by the PCI BIOS simplifies installation and reduces configuration complexity. - **High-Performance UART:** Each port integrates an ASIX MCS9865-compatible 16950A UART controller supporting baud rates from 50 to 115,200 bps, ensuring reliable high-speed data transmission. - **Industrial-Grade Design:** Built with durable materials and designed for stable operation in environments with temperature ranges from 0°C to 55°C and humidity up to 95% RH. - **Compact Form Factor:** Standard PCI card dimensions (75 × 90 mm) with optional low-profile brackets available for space-constrained systems. - **Software Support:** Compatible with multiple operating systems and driver frameworks, ensuring broad deployment flexibility across legacy and modern platforms.

Manufacturer: Rayon

Category: Sharer/Converter 1-2 Ports

- **Dual Ground-Isolated RS232 Ports:** Each of the two serial ports is independently isolated from system ground, protecting the host PC and connected devices from ground loops, surges, and electrical noise. - **ASIX MCS9865-Compatible Controller:** Utilizes the ASIX MCS9865 serial communication controller, ensuring compatibility with a wide range of operating systems and providing stable, high-speed data transfer. - **Selectable Port Configuration:** Each port can be configured individually via DIP switches, allowing flexible setup for different communication requirements. - **High-Speed Communication:** Supports baud rates from **50 bps up to 230,400 bps**, suitable for both legacy and modern serial devices. - **Plug & Play PCI Interface:** Fully compliant with PCI Plug & Play standards. I/O address, memory mapping, and IRQ assignments are automatically managed by the PCI BIOS. - **Broad OS Compatibility:** Supports **Windows 2000, XP, Vista, Windows 7/8**, and **Linux** operating systems. - **Industrial-Grade Design:** Designed for industrial control environments with robust isolation and wide environmental tolerance. - **Compact Form Factor:** Standard PCI card dimensions (100 × 97 mm) with optional low-profile bracket for compact systems. - **Single Voltage Operation:** Operates on **5V PCI bus power only**, simplifying system integration.

Manufacturer: Rayon

Category: RS232 2-Ports PCI

- **Dual-Port Serial Communication:** Provides two independent serial communication ports on a single PCI or PCIe card. - **Ground Isolation:** Each port is galvanically isolated to prevent ground loops and electrical interference, ensuring stable operation in industrial environments. - **Multi-Protocol Support:** Each port can be individually configured for RS232, RS422, or RS485 operation via onboard DIP switches. - **Flexible Configuration:** DIP switch selection allows quick and easy reconfiguration without software intervention. - **High Compatibility:** Fully compatible with standard PCI or PCI Express bus slots, depending on model variant. - **Plug & Play Installation:** Automatic I/O address, memory mapping, and IRQ assignment by the PCI BIOS. - **High-Performance UART:** Each port uses an ASIX-compatible 16950A UART (MCS9865 or MCS9922 controller), supporting advanced buffering and high-speed data transfer. - **Baud Rate Range:** Supports communication speeds from 50 bps up to 115,200 bps (AP112-I) or up to 230,400 bps (depending on chipset configuration). - **ADDC (Automatic Data Direction Control):** Supported in RS485 mode for automatic transmit/receive switching, simplifying half-duplex communication. - **Industrial-Grade Design:** Designed for robust operation in industrial control systems, automation, and data acquisition environments. - **Operating System Support:** Compatible with Windows 2000, XP, Vista, Windows 7, and Linux distributions. - **Compact Form Factor:** Standard PCI/PCIe card dimensions (100 mm × 97 mm) suitable for standard and low-profile enclosures. - **Optional Accessories:** Low-profile brackets available upon request for compact system integration.

Manufacturer: Rayon

Category: RS485 / RS422 1-2-Port