- **Four Independent RS-232 Ports:** Provides four asynchronous serial communication channels for connecting multiple serial devices simultaneously. - **Intelligent Onboard Processing:** Equipped with a **TMS320C203 RISC processor**, enabling intelligent data handling and reducing host CPU load. - **High-Performance UART:** Utilizes **TI 16550C UARTs** with **32-byte FIFO buffers** per port for efficient data buffering and reduced interrupt overhead. - **Large Onboard Memory:** Integrated **512 kB memory** for buffering and intelligent data management, ensuring smooth communication even under heavy data loads. - **Wide Baud Rate Range:** Supports data rates from **50 bps up to 921,600 bps**, accommodating both legacy and high-speed serial applications. - **Compact PCI Form Factor:** Designed as a **space-saving PCI card (160 × 95 mm)** suitable for embedded systems and compact industrial PCs. - **RJ45 Connectors:** Each port uses an **RJ45 interface**, simplifying cabling and reducing space requirements compared to traditional DB9 connectors. - **Software-Based Configuration:** No jumpers or DIP switches required; all port parameters and IRQ/DMA settings are configured via software utilities. - **Industrial Reliability:** Built for continuous operation in industrial environments, offering stable performance and long-term durability. - **Compatibility:** Fully compatible with standard PCI bus interfaces and supports major operating systems through Moxa’s driver suite.

Manufacturer: Moxa

Category: RS232 4-Ports

- **Four Independent RS232 Ports:** Provides four fully functional RS232 serial communication channels on a single PCIe card, enabling simultaneous multi-device connectivity. - **Oxford 16950 Compatible Controller:** Each port is based on an Oxford 16950-compatible UART, offering advanced buffering, high-speed data transfer, and compatibility with legacy serial devices. - **PCI Express Interface:** Utilizes the PCIe bus architecture for high-speed data throughput and plug-and-play installation. - **Flexible Baud Rate Configuration:** Supports baud rates from 50 bps up to 115200 bps per port, suitable for a wide range of serial communication devices. - **Memory-Mapped I/O:** System I/O and IRQ mapping are automatically assigned by the PCI BIOS, simplifying system integration and resource allocation. - **Compact Design:** The card measures 93 mm x 70 mm, fitting standard PCIe slots; a low-profile version (OPe954L) is available for compact systems. - **DB44 Connector Interface:** The main card features a DB44 female connector, which connects to an included breakout cable (R904) that provides four DB9 male connectors. - **Cross-Platform Driver Support:** Compatible with multiple operating systems including Windows 2000, XP, 2003, Vista, and Linux distributions. - **Industrial-Grade Reliability:** Designed for continuous operation in industrial environments with wide temperature and humidity tolerance. - **Scalable Product Family:** Part of Rayon’s OPe9xx series, offering 2-port (OPe952) and 8-port (OPe958) variants for flexible system expansion.

Manufacturer: Rayon

Category: RS232 4-Ports

- **Universal PCI Compatibility:** Supports both 3.3V and 5V PCI slots at 33 MHz, ensuring broad motherboard compatibility. - **Four Independent RS232 Ports:** Each port is fully 16550A UART compatible, supporting baud rates from 50 to 115,200 bps. - **5V Power on Pin 9:** Provides 5V output on the RI signal pin (pin 9) for powering external devices such as barcode readers, scanners, or serial peripherals. - **Plug & Play Configuration:** Automatic IRQ and I/O address mapping assigned by PCI BIOS; no manual configuration required. - **Surge Protection:** Integrated surge protection on TXD and RXD signal lines enhances reliability in industrial environments. - **16550A-Compatible UARTs:** Each port includes a 16-byte transmit and receive FIFO buffer, reducing CPU load and improving throughput. - **Operating System Support:** Compatible with DOS, Windows 95/98/Me/NT/2000/XP/Vista/7, Linux, SCO OpenServer, and UNIX systems. - **Compact Design:** 120 mm × 100 mm PCB form factor suitable for standard PCI slots. - **External Connectivity:** Includes DB37-to-4×DB9M cable (DB25M optional). - **Shared IRQ Support:** Allows multiple PCI cards to share a single interrupt line, optimizing system resources. - **Industrial Reliability:** Designed for continuous operation in environments with 0–55°C temperature and 10–95% relative humidity.

Manufacturer: Rayon

Category: RS232 4-Ports

- **Universal PCI Compatibility:** Operates in both 3.3V and 5V PCI slots (33 MHz), ensuring broad motherboard compatibility. - **Four Independent RS232 Ports:** Each port supports full RS232 signaling (TXD, RXD, RTS, CTS, DTR, DSR, DCD, GND). - **16550A UART Compatibility:** Each port includes a 16550A-compatible UART with 16-byte FIFO for efficient data buffering and reduced CPU overhead. - **Plug & Play Configuration:** Automatic IRQ and I/O address mapping assigned by the PCI BIOS, simplifying installation and configuration. - **5V Power Supply Operation:** Designed to operate using only the 5V power rail from the PCI slot, ensuring stable and efficient power delivery to all serial ports. - **Surge Protection:** Integrated surge protection on TXD and RXD signal lines enhances reliability in electrically noisy environments. - **Flexible Connector Options:** Includes a DB37 female to 4×DB9 male breakout cable (DB25 male version available upon request). - **Wide OS Compatibility:** Supports multiple operating systems including DOS, Windows 95/98/ME/NT/2000/XP/Vista/7, Linux, SCO OpenServer, and UNIX variants. - **Compact Design:** Small form factor (120 mm × 100 mm) suitable for standard PCI slots in desktop or industrial PCs. - **Industrial-Grade Reliability:** Designed for continuous operation in environments with temperature ranges from 0°C to 55°C and humidity up to 95% RH.

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:** Each port is fully 16550A UART compatible, supporting standard RS232 signals (TXD, RXD, RTS, CTS, DTR, DSR, DCD, GND). - **Universal PCI Interface:** Compatible with both 3.3V and 5V 33MHz PCI slots, ensuring broad motherboard compatibility. - **Plug & Play Configuration:** Automatic IRQ and I/O address mapping assigned by PCI BIOS; no manual configuration required. - **High-Speed Serial Communication:** Supports baud rates from 50 to 115,200 bps per port. - **Surge Protection:** Integrated surge protection on TXD/RXD lines for enhanced reliability in industrial environments. - **16550A-Compatible UARTs:** Each port includes a 16-byte FIFO buffer for efficient data handling and reduced CPU load. - **Broad OS Support:** Compatible with DOS, Windows 95/98/ME/NT/2000/XP/7/8/10, Linux, and SCO OpenServer. - **Multi-Card Support:** Up to two P584U cards can be installed per system, providing up to eight serial ports. - **Flexible Connector Options:** Standard A404 cable (DB37F to 4×DB9M) included; optional A400 cable (DB37F to 4×DB25M) available. - **Industrial-Grade Design:** Built with high-quality components and designed for continuous operation in demanding environments.

Manufacturer: Rayon

Category: RS232 4-Ports

- **Four Independent RS232 Ports:** Each port is fully 16550A UART compatible, providing reliable asynchronous serial communication. - **High Compatibility:** Supports 3.3V and 5V PCI bus systems, ensuring broad compatibility with modern and legacy PCs. - **Plug & Play Configuration:** Automatic IRQ and I/O address mapping assigned by PCI BIOS, eliminating manual configuration. - **Surge Protection:** Integrated surge protection on TXD and RXD lines enhances reliability in industrial environments. - **Flexible Power Supply:** Operates using only the 5V power rail from the PCI slot—no external power required. - **Multi-OS Support:** Compatible with DOS, Windows 95/98/ME/NT/2000/XP/7/8/10, Linux, SCO OpenServer, and UNIX systems. - **16550A-Compatible UARTs:** Each port includes a 16-byte FIFO buffer for efficient data handling and reduced CPU load. - **High-Speed Data Transmission:** Supports baud rates from 50 to 115,200 bps per port. - **Shared IRQ Capability:** Allows multiple cards to share a single IRQ, supporting up to two cards per system. - **Compact Design:** Small form factor (122 × 101 mm) suitable for standard PCI slots. - **Included Cable Assembly:** DB37 female to 4 × DB9 male breakout cable (A404); optional DB25 male cable (A400) available. - **Industrial-Grade Reliability:** Designed for continuous operation in environments with wide temperature and humidity ranges.

Manufacturer: Rayon

Category: RS232 4-Ports

- **Four Independent RS232 Ports:** Provides four fully functional RS232 serial ports via a single PCI slot. - **5V Power on Pin 9:** Each port supplies 5V DC on the RI (Ring Indicator) pin, enabling direct powering of external serial devices such as barcode scanners, readers, or handheld terminals. - **Intelligent PCI Interface:** Utilizes an intelligent 16550A-compatible serial communication controller with 16-byte FIFO buffers for efficient data handling and reduced CPU load. - **Plug & Play Configuration:** Automatic IRQ and I/O address assignment by PCI BIOS; no manual configuration required. - **16550A UART Compatibility:** Ensures compatibility with standard serial communication software and operating systems. - **Surge Protection:** Built-in surge protection on TXD and RXD signal lines enhances reliability in industrial environments. - **Universal PCI Bus Support:** Compatible with both 3.3V and 5V PCI slots operating at 33 MHz. - **High-Speed Communication:** Supports baud rates from 50 bps up to 115,200 bps per port. - **Multi-OS Support:** Compatible with DOS, Windows 95/98/ME/NT/2000/XP/7/8/10, Linux, UNIX, and SCO OpenServer. - **Compact Design:** Small form factor (120 mm × 100 mm) suitable for standard desktop and industrial PCs. - **Shared IRQ Capability:** Supports IRQ sharing among multiple PCI cards, optimizing system resource usage. - **External Cable Options:** Includes DB37 female to 4×DB9 male cable (DB25 male optional).

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

- **PCI Express x1 Compliant:** Fully compatible with PCI Express x1 interface, ensuring high‑speed data transfer and broad system compatibility. - **Four Independent RS‑232 Ports:** Provides four serial communication channels via a single DB44 female connector, expandable through a breakout cable. - **Wide Baud Rate Range:** Supports baud rates from **150 bps to 921.6 Kbps**, suitable for a wide range of serial devices. - **128‑Byte FIFO Buffer:** Each port includes a 128‑byte FIFO buffer for efficient data handling and reduced CPU load. - **Hardware and Software Flow Control:** Supports RTS/CTS (hardware) and Xon/Xoff (software) flow control for reliable data transmission. - **Full Modem Control Signals:** Includes TxD, RxD, RTS, CTS, DTR, DSR, DCD, and GND signals for full RS‑232 compliance. - **Low‑Profile Design:** Compact 67.2 × 104.8 mm form factor suitable for small‑form‑factor PCs and embedded systems. - **Industrial Temperature Range:** Operates reliably from **‑40°C to +75°C**, with storage capability up to +85°C. - **High ESD Protection:** Meets IEC 61000‑4‑2 standards with **15 kV air discharge** and **8 kV contact discharge** protection. - **LED Indicators:** Each port features dual LEDs—green for transmit (TX) and amber for receive (RX)—for real‑time communication status monitoring. - **Low Power Consumption:** Operates at **835 mA @ 3.3 VDC**, requiring only the PCIe slot power supply. - **Rugged Industrial Design:** Built for long‑term reliability in harsh environments, with 5‑year warranty coverage.

Manufacturer: JS Automation

Category: RS232 4-Ports

- **PCI Express x1 Interface:** Fully compliant with PCI Express x1 specification, ensuring compatibility with modern PC and industrial computer platforms. - **Four Isolated RS‑232 Ports:** Provides four independent RS‑232 serial channels through a single DB44 connector, each isolated to 3 kV for enhanced protection against ground loops and electrical surges. - **High Baud Rate Support:** Configurable baud rates from 150 bps up to 921.6 Kbps, suitable for a wide range of serial communication devices. - **128‑Byte FIFO Buffer:** Each port includes a 128‑byte FIFO for efficient data handling and reduced CPU overhead during high‑speed communication. - **Hardware and Software Flow Control:** Supports RTS/CTS (hardware) and Xon/Xoff (software) flow control for reliable data transmission. - **Low‑Profile Form Factor:** Compact 67.2 × 136.8 mm design fits small‑form‑factor PCs and embedded systems. - **3 kV Isolation Protection:** Electrical isolation between ports and host system enhances safety and prevents damage from transient voltages. - **LED Indicators:** Individual TX (green) and RX (amber) LEDs per port provide real‑time transmission and reception status. - **Wide Temperature Range:** Operates reliably from ‑40 °C to +75 °C, suitable for harsh industrial environments. - **High ESD Immunity:** Meets IEC 61000‑4‑2 standards with 15 kV air and 8 kV contact discharge protection. - **Energy Efficient:** Operates on 3.3 V DC with a typical current draw of 1,150 mA. - **Long‑Term Reliability:** Backed by a 5‑year manufacturer warranty.

Manufacturer: JS Automation

Category: RS232 4-Ports

- **PCI Express x1 Compliant:** Fully compatible with PCI Express x1 interface, ensuring high-speed data transfer and broad system compatibility. - **Four RS-232 Ports:** Provides four independent RS-232 serial communication channels via a single DB44 connector. - **High Surge and ESD Protection:** - Surge protection up to 6 kV (signal lines, –S model only). - ESD protection: 15 kV (air discharge), 8 kV (contact discharge). - **Wide Baud Rate Range:** Supports baud rates from 150 bps to 921.6 Kbps, suitable for a wide variety of serial devices. - **128-Byte FIFO Buffer:** Ensures smooth data transmission and reception with minimal CPU overhead. - **Flow Control Support:** Hardware (RTS/CTS) and software (Xon/Xoff) flow control supported for reliable communication. - **Low Profile Design:** Compact form factor (67.2 x 104.8 mm) suitable for small form factor PCs and embedded systems. - **Full Modem Control Signals:** Provides DCD, DSR, DTR, RTS, CTS, and DCD signals for full modem compatibility. - **LED Indicators:** - Green LED for TX (transmit activity). - Amber LED for RX (receive activity). - **Industrial-Grade Reliability:** Designed for continuous operation in harsh environments with extended temperature and humidity tolerance. - **Power Efficiency:** Operates on 3.3 VDC with a current draw of 835 mA. - **Long-Term Warranty:** Backed by a 5-year manufacturer warranty.

Manufacturer: Rayon

Category: RS232 4-Ports

- **PCI Express x1 Compliant:** Fully compatible with PCI Express x1 interface, ensuring high‑speed data transfer and broad system compatibility. - **Four RS‑232 Serial Ports:** Provides four independent RS‑232 communication channels via a single DB44 connector. - **High Isolation and Surge Protection:** - 3 kV serial isolation between ports and system bus. - 6 kV surge protection on signal lines (specific to the “‑SI” model). - **Wide Baud Rate Range:** Supports baud rates from 150 bps up to 921.6 Kbps, accommodating a wide range of serial devices. - **128‑Byte FIFO Buffer:** Large FIFO buffer per port for efficient data handling and reduced CPU load. - **Flow Control Support:** Hardware (RTS/CTS) and software (Xon/Xoff) flow control for reliable data transmission. - **Low‑Profile Design:** Compact PCB (67.2 × 136.8 mm) suitable for small‑form‑factor PCs and embedded systems. - **LED Indicators:** - Green LED for TX (transmit activity). - Amber LED for RX (receive activity). - **Industrial‑Grade Protection:** - ESD protection: 15 kV (air), 8 kV (contact). - Surge protection: 6 kV (signal lines, SI model). - Isolation: 3 kV between serial ports and host system. - **Wide Operating Temperature:** ‑40 °C to +75 °C for reliable operation in extreme environments. - **Power Efficiency:** Operates from 3.3 V DC with a typical current draw of 1,150 mA. - **Long‑Term Reliability:** Backed by a 5‑year manufacturer warranty.

Manufacturer: Rayon

Category: RS232 4-Ports

- **Four Independent RS232 Ports:** Provides four fully functional RS232 serial ports, each capable of independent configuration and operation. - **5V Power Output on Pin 9:** Supplies 5V DC power through pin 9 of each DB9 connector, ideal for powering POS peripherals such as barcode scanners, receipt printers, or card readers. - **Low Profile PCIe Design:** Compact 92 × 69 mm form factor suitable for small form factor PCs, embedded systems, and rackmount servers. - **High-Performance Moschip MCS9904 Controller:** Each port is managed by a 16950A-compatible UART with 128-byte transmit and receive FIFOs, ensuring efficient data handling and reduced CPU load. - **Flexible Baud Rate Support:** Configurable baud rates from 50 bps up to 115,200 bps per port. - **Plug-and-Play Configuration:** I/O address, memory mapping, and IRQ assignments are automatically managed by the PCI BIOS, simplifying installation and avoiding resource conflicts. - **Comprehensive OS Support:** Compatible with Windows 2000, XP, Vista, Windows 7, and Linux distributions. - **Industrial-Grade Reliability:** Designed for continuous operation in industrial and commercial environments with wide temperature and humidity tolerance. - **Expandable Product Family:** Compatible with other Rayon PCIe serial cards (A102, A132, A112, A114, A134, A168, A134I, A124I) for scalable serial communication solutions.

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

- **Multi‑Interface Support:** Provides four independent serial channels — three RS‑232 ports and one RS‑422 port — through RJ‑45 connectors. - **PCI Plug‑and‑Play Architecture:** Fully compliant with PCI Local Bus Specification Rev. 2.1. Automatic resource assignment (I/O address, IRQ) by BIOS; no manual configuration required. - **Intelligent Serial Controller:** Each port uses a 16C550A‑compatible UART with 16‑byte transmit and receive FIFOs, reducing CPU interrupts and improving throughput. - **High‑Speed Communication:** Supports baud rates up to 115.2 kbps (standard 1.8432 MHz crystal) or up to 921.6 kbps with optional 14.7456 MHz crystal. - **Flexible Flow Control:** Hardware (RTS/CTS) and software (XON/XOFF) flow control supported. - **Universal PCI Voltage Support:** Operates in both 5 V and 3.3 V PCI slots (Universal PCI design). - **Compact RJ‑45 Connectivity:** RJ‑45 connectors simplify cabling and allow modular connection to external devices or patch panels. - **Driver Support for Multiple OS:** Compatible with Windows 95/98/Me, Windows NT, Windows 2000/XP, DOS, Linux, and SCO OpenServer. - **IRQ Sharing Capability:** Supports interrupt sharing among multiple PCI cards, enabling multi‑card installations. - **Industrial Reliability:** Designed for continuous operation in PC/AT industrial systems; optional isolation and surge protection available via external RS4232 isolation boxes. - **Expandable System Integration:** Multiple PCIPORT cards can coexist in one system, supporting up to 8 or 16 serial ports depending on configuration.

Manufacturer: Rayon

Category: RS232 4-Ports

- **Four Independent Serial Ports:** Provides 4 communication channels — 2×RS‑422 and 2×RS‑232 — via RJ‑45 connectors. - **PCI Plug‑and‑Play Architecture:** Fully compliant with PCI Local Bus Specification Rev. 2.1. Automatic resource assignment (I/O address, IRQ) by PCI BIOS eliminates manual configuration. - **Intelligent Serial Controller:** Each port uses a 16C550A‑compatible UART with 16‑byte transmit and receive FIFOs, reducing CPU interrupt load and improving throughput. - **High‑Speed Operation:** 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 Interface Configuration:** Supports both RS‑232 and RS‑422 signaling standards. RS‑422 ports can be configured for full‑duplex differential communication. - **RJ‑45 Connector Interface:** Compact modular connectors simplify cabling and integration in structured wiring environments. - **Universal PCI Compatibility:** Operates in both 5 V and 3.3 V PCI slots at 33 MHz, suitable for legacy and modern PC/AT systems. - **Driver Support for Multiple Operating Systems:** Compatible with Windows 95/98/Me, Windows NT 4.0, Windows 2000/XP, DOS, Linux, and SCO OpenServer. - **Interrupt Sharing:** Supports IRQ sharing among multiple PCI cards, allowing installation of multiple PCIPORT cards in one system. - **Hardware Flow Control:** Supports both software (XON/XOFF) and hardware (RTS/CTS) flow control. - **Industrial‑Grade Reliability:** Designed for continuous operation in industrial and embedded environments with robust electrical design and optional isolation via external RS4232 boxes.

Manufacturer: Rayon

Category: RS232 4-Ports

- **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

- **Dual Serial Port Interface:** Provides two DB9 male connectors for external serial communication, corresponding to two internal 10-pin COM headers (COM2 and COM3). - **Standard 2×10-Pin Flat Cable Connection:** Utilizes two 10-pin IDC connectors (2×5 layout per COM port) for direct connection to motherboard or controller serial headers. - **High Compatibility:** Designed to fit standard PC motherboards, embedded systems, and industrial controllers that support COM2 and COM3 ports. - **Durable Construction:** Made from high-quality metal bracket material with robust connectors to ensure long-term reliability and mechanical stability. - **Plug-and-Play Integration:** No additional drivers required; functions as a passive extension of existing serial ports. - **Universal DB9 Male Connectors:** Supports standard RS-232 pinout, compatible with a wide range of serial devices such as modems, PLCs, barcode scanners, and instrumentation interfaces. - **Compact and Standardized Form Factor:** Fits standard I/O expansion slots on desktop or industrial PC chassis. - **Color-Coded and Labeled Connectors:** Each DB9 port is typically labeled (COM2, COM3) for easy identification and installation. - **Flexible Cable Length:** Flat ribbon cables provide flexibility for routing within the chassis, minimizing strain and interference.

Manufacturer: JS Automation

Category: RS232 4-Ports

- **Four Independent Serial Ports:** Each port can be configured individually for RS422 or RS485 operation. - **DIP Switch Configuration:** Hardware DIP switches allow quick selection between RS422 and RS485 modes per port. - **ADDC (Auto Data Direction Control):** Built-in automatic data direction control for RS485 communication eliminates the need for manual RTS signal handling. - **High Compatibility:** Fully compatible with PCI Express bus architecture and Plug & Play configuration. - **Industrial-Grade Design:** Suitable for industrial control, automation, and data acquisition systems. - **Wide OS Support:** Compatible with Windows 2000, XP, Vista, Windows 7, and Linux operating systems. - **Plug & Play Resource Allocation:** I/O mapping, memory mapping, and IRQ assignments are automatically managed by the PCI BIOS. - **High-Speed Communication:** Supports baud rates from 50 bps up to 115,200 bps per port. - **Flexible Connectivity:** Uses a DB37 female connector on the card, with included breakout cable to four DB9 male connectors. - **Compact PCIe Form Factor:** Standard PCIe bracket with compact PCB dimensions for easy integration. - **Extended Environmental Range:** Designed for reliable operation in industrial temperature and humidity conditions. - **128-Byte FIFO Buffers:** Each port includes 128-byte transmit and receive buffers to reduce CPU interrupts and improve throughput. - **Hardware Flow Control:** Supports Xon/Xoff and RTS/CTS flow control mechanisms. - **Upgradeable Product Line:** Compatible with other Rayon APCIe models for different port counts and interface combinations.

Manufacturer: Rayon

Category: RS485 / RS422 4-Po

- **Four Independent Serial Ports:** Provides four isolated serial communication ports, each configurable as RS422 or RS485. - **Full Ground Isolation:** Each port is galvanically isolated to prevent ground loops and protect connected equipment from electrical surges. - **Flexible Configuration:** DIP switch selectable interface mode per port (RS422 or RS485). - **Auto Data Direction Control (ADDC):** Built-in ADDC feature for RS485 mode enables automatic transmit/receive switching without software control. - **High-Speed Communication:** Supports baud rates from 50 bps up to 115,200 bps per port. - **Plug & Play PCIe Interface:** Fully compliant with PCI Express bus architecture; I/O, memory, and IRQ resources are automatically assigned by the PCI BIOS. - **Industrial-Grade Design:** Rugged construction and wide environmental tolerance make it suitable for industrial control and automation systems. - **Comprehensive OS Support:** Compatible with Windows 2000, XP, Vista, Windows 7, and Linux operating systems. - **Compact Form Factor:** Standard PCIe bracket with dimensions of 120 mm × 105 mm. - **Included Connectivity Cable:** Ships with a DB37 male to 4×DB9 male expansion cable for easy connection to external devices. - **Optional Accessories:** DB37 to 4×DB25 male cable (A400) available for alternative connector configurations. - **Enhanced System Performance:** 128-byte transmit and receive FIFO buffers per port reduce CPU interrupt load, improving multitasking efficiency. - **Industrial Reliability:** Designed for continuous operation in environments with high electrical noise and variable temperature/humidity conditions.

Manufacturer: Rayon

Category: RS485 / RS422 4-Po

- **Four Independent Serial Ports:** The CI-134 provides four RS-422/485 ports, allowing simultaneous communication with multiple serial devices. - **High-Speed Data Transmission:** Supports baud rates from 50 bps to 921,600 bps (921.6 kbps), ensuring compatibility with both legacy and modern serial devices. - **Auto Data Direction Switching:** Built-in automatic data direction control for RS-485 communication eliminates the need for manual RTS signal handling, simplifying software development and improving communication reliability. - **Flexible Interrupt Configuration:** Supports IRQ 2–5, 7, 10–12, and 15, allowing flexible resource allocation and minimizing conflicts with other system devices. - **Standard Interface Connectors:** Each port uses a male DB9 connector, ensuring compatibility with standard serial cables and accessories. - **Compact Form Factor:** The board measures 157 mm × 83 mm, suitable for installation in standard PC expansion slots. - **Industrial Reliability:** Designed for stable operation in industrial environments, with robust electrical design and high noise immunity. - **Wide Compatibility:** Compatible with a range of operating systems and industrial control software, supporting both RS-422 and RS-485 communication modes. - **Hardware Flow Control:** Supports hardware-based flow control for reliable data transmission in multi-drop or point-to-point configurations. - **Ease of Integration:** Ideal for connecting PLCs, sensors, controllers, and other serial devices to PC-based control systems.

Manufacturer: Moxa

Category: RS485 / RS422 4-Po

- **Four Independent Serial Ports:** Provides 4 isolated RS-422/485 ports for simultaneous multi-device communication. - **High-Speed Data Transmission:** Supports baud rates from 50 bps up to 921.6 kbps, enabling fast and reliable data exchange. - **2 kV Isolation Protection:** Each port is optically isolated up to 2,000 V, protecting the system from electrical surges, ground loops, and signal interference. - **ADDS (Automatic Data Direction Switching):** Built-in automatic data direction control for RS-485 communication eliminates the need for manual RTS signal handling, simplifying software development and ensuring efficient half-duplex communication. - **Flexible Interrupt Configuration:** Supports IRQ 2–5, 7, 10–12, and 15, allowing flexible resource allocation and compatibility with various PC architectures. - **Standard Interface Connectors:** Equipped with male DB9 connectors for each port, ensuring compatibility with standard serial cables and devices. - **Compact Form Factor:** The board measures 157 mm × 83 mm, suitable for installation in standard PC slots without occupying excessive space. - **Industrial Reliability:** Designed for continuous operation in demanding environments, with robust electrical isolation and stable performance under industrial conditions. - **Wide Compatibility:** Compatible with a broad range of operating systems and industrial applications requiring RS-422/485 communication.

Manufacturer: Moxa

Category: RS485 / RS422 4-Po

- **Four Isolated Serial Ports:** Provides 4 independent RS-422/485 ports for simultaneous multi-device communication. - **2 kV Isolation Protection:** Each port is optically isolated up to 2 kV, protecting connected devices and the host system from electrical surges, ground loops, and transient voltage spikes. - **Integrated Surge Protection:** Built-in surge suppression safeguards against voltage transients and electrostatic discharge (ESD), enhancing long-term reliability in industrial environments. - **High-Speed Data Transmission:** Supports baud rates from 50 bps up to 921.6 kbps, enabling fast and stable data exchange for high-throughput applications. - **Auto Data Direction Control:** Intelligent automatic data direction switching for RS-485 communication eliminates the need for manual RTS signal control, simplifying software development and ensuring efficient half-duplex communication. - **Flexible Interrupt Configuration:** Supports multiple IRQ settings (2–5, 7, 10–12, 15), allowing flexible resource allocation and compatibility with various PC architectures. - **Standard Interface Connectors:** Equipped with four male DB9 connectors for direct connection to serial devices. - **Compact Form Factor:** Designed with a compact PCB footprint (157 × 83 mm), suitable for installation in standard PC slots. - **Wide Compatibility:** Compatible with a broad range of operating systems and industrial communication protocols, making it ideal for integration into legacy and modern systems alike. - **Industrial-Grade Reliability:** Engineered for continuous operation in harsh industrial conditions, ensuring stable performance and long service life.

Manufacturer: Moxa

Category: RS485 / RS422 4-Po

- **Four Isolated Serial Ports:** Provides four independent RS422/RS485 communication channels, each electrically isolated to prevent ground loops and signal interference. - **PCI Express Interface:** Fully compliant with PCI Express standards, ensuring high-speed data transfer and compatibility with modern PC architectures. - **High-Speed Communication:** Supports data rates up to **921.6 kBd**, suitable for high-throughput industrial communication applications. - **Advanced UART Controller:** Equipped with a **16550-compatible UART** featuring a **128-byte FIFO buffer** per channel, minimizing CPU load and improving data handling efficiency. - **Channel-to-Channel Isolation:** Provides **1 kVDC isolation** between channels, enhancing system reliability and protecting connected devices from voltage surges and electrical noise. - **Compact Form Factor:** Designed with a **board size of 112 mm × 115 mm**, suitable for standard PCIe slots in industrial PCs and embedded systems. - **Single Connector Interface:** Utilizes a **DB37 female D-sub connector** for all four ports, simplifying installation and cable management. - **Included Breakout Cable:** Supplied with a **DB37 male to 4 × DB9 male cable (M27033709015)**, providing easy access to individual serial ports. - **Scalable Configuration:** Supports installation of up to **four COM-8564 boards per PC**, allowing expansion to 16 isolated serial ports in a single system. - **Bus-Powered Operation:** Draws **12 V DC power directly from the PCIe bus**, eliminating the need for external power supplies. - **Industrial-Grade Design:** Engineered for long-term reliability in automation, control, and data acquisition systems.

Manufacturer: JS Automation

Category: RS485 / RS422 4-Po