- **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