- **Eight RS422 Serial Ports:** Each box provides eight independent RS422-compatible ports for differential serial communication. - **Built-in FIFO UART Controller:** Incorporates eight **16C554** UART chips, each with FIFO buffering for efficient data handling and reduced CPU overhead. - **High-Speed Data Transmission:** Supports baud rates up to **230,400 bps (230.4 kBd)**, ensuring reliable high-speed communication. - **Expandable Architecture:** Up to **eight F642N boxes** can be daisy-chained to a single host card, supporting a maximum of **64 serial ports**. - **Optional IRQ Line:** Provides an optional interrupt request line from the box to the host card for optimized interrupt-driven communication. - **DB37 Daisy-Chain Connectivity:** Equipped with **DB37 female (input)** and **DB37 male (output)** connectors for linking multiple boxes in sequence. - **DB25 Port Connectors:** Each serial port uses a **DB25 male connector**, ensuring compatibility with standard RS422 cabling and devices. - **FIFO Buffering:** Reduces data loss and improves throughput by buffering incoming and outgoing data streams. - **Compatibility:** Designed to interface with **Rayon P640NU** and **IOP3927F** intelligent multiport cards. - **Flexible System Integration:** Supports mixed interface configurations (RS232 and RS422) within the same host system. - **Industrial-Grade Design:** Built for continuous operation in controlled environments with wide temperature and humidity tolerance. - **Compact Form Factor:** Space-efficient design suitable for rack or desktop integration.

Manufacturer: Rayon

Category: PCI max 128 Serial

- **Eight Ground-Isolated RS232 Ports:** Each of the eight ports is individually isolated to prevent ground loop interference and ensure stable communication in electrically noisy environments. - **Built-in FIFO Type UART Controller:** Incorporates the **16C554** advanced FIFO (First-In-First-Out) UART controller chip, providing efficient buffering and minimizing data loss during high-speed communication. - **Full Hardware Control Line Support:** Fully compliant with RS232C standards, supporting all standard control signals (RTS, CTS, DTR, DSR, DCD, RI). - **Daisy-Chain Expandability:** Supports daisy-chaining via DB37 connectors, allowing multiple boxes to be linked together to expand the number of available serial ports—up to 32 ports per system. - **Compatibility with Rayon Multiport Cards:** Designed to interface seamlessly with **P640NU** and **IOP3927F** intelligent multiport cards, enabling flexible system configurations. - **Compact and Durable Design:** Housed in a robust enclosure measuring **268 × 128 × 38 mm**, suitable for desktop or rack-mounted installations. - **Ground Isolation:** Each port is galvanically isolated, enhancing system reliability and protecting connected devices from electrical surges or potential differences. - **Flexible System Integration:** Ideal for industrial automation, data acquisition, instrumentation, and communication control systems requiring multiple isolated serial connections.

Manufacturer: Rayon

Category: PCI max 128 Serial

- **8-Port Ground-Isolated Serial Communication:** Each IF208 unit provides eight fully isolated RS422/RS485 serial ports, ensuring signal integrity and protection against ground loops and electrical noise. - **Configurable Interface via DIP Switch:** Each port can be individually configured as RS422 or RS485 using dedicated DIP switch settings. This flexibility allows mixed-mode operation within a single box. - **Built-in FIFO Type UART Controller (16C554):** The integrated 16C554 chip provides advanced FIFO buffering, reducing CPU load and improving data throughput for high-speed serial communication. - **Output Enable Timing Control:** A dedicated DIP switch allows adjustment of output enable timing for TXD/RXD lines, optimizing communication timing for various RS485 network configurations. - **Daisy-Chain Expandability:** The IF208 supports daisy-chaining through DB37 connectors, enabling expansion up to 32 serial ports when multiple boxes are linked together. - **Industrial-Grade Isolation:** Each port is ground-isolated, providing enhanced protection for connected devices and ensuring reliable operation in electrically noisy environments. - **Compact and Durable Design:** With a robust metal enclosure measuring 268 × 128 × 38 mm, the IF208 is designed for industrial environments where durability and space efficiency are critical. - **Compatibility with Rayon Multiport Cards:** Fully compatible with Rayon’s P640NU and IOP3927F intelligent multiport cards, allowing seamless integration into existing serial communication infrastructures. - **Flexible Application Support:** Suitable for local, remote, and multi-drop serial communication setups, supporting RS422 for long-distance connections and RS485 for multi-node networks.

Manufacturer: Rayon

Category: PCI max 128 Serial

- **Multi-Interface Support:** Each of the eight ports can be individually configured as RS232, RS422, or RS485 via DIP switches, allowing mixed-mode operation within a single box. - **Ground Isolation:** Each serial port is galvanically isolated, reducing ground loop interference and ensuring reliable communication in electrically noisy environments. - **Built-in FIFO UART Controller:** Integrated **16C554 FIFO-type UART** controller provides efficient data buffering and high-speed serial communication with reduced CPU overhead. - **Flexible Configuration:** Two DIP switch bits per port allow precise interface selection: - One bit selects between RS232 and RS422/RS485 modes. - The second bit selects between RS422 and RS485 when applicable. - **Daisy-Chain Expandability:** Supports daisy-chaining via DB37 connectors, enabling up to **32 serial ports** when multiple boxes are linked. - **Hardware Compatibility:** Designed to interface with **Rayon P640NU** and **IOP3927F intelligent multiport cards**, providing scalable serial expansion for PCI-based systems. - **Industrial-Grade Construction:** Durable metal enclosure with compact dimensions (268 × 128 × 38 mm) suitable for rack or panel mounting. - **Comprehensive Interface Control:** Fully supports hardware handshaking and control lines for RS232 communication. - **Flexible Deployment:** Ideal for applications requiring a combination of local (RS232), remote (RS422), and multi-drop (RS485) serial connections.

Manufacturer: Rayon

Category: PCI max 128 Serial

- **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 RISC CPU delivering 3927 MIPS, ensuring efficient data handling and minimal host CPU load. - **Large Dual-Port Memory Architecture:** 16 MB SDRAM shared between the local processor and host system via PCI memory mapping, with up to 1 MB receive and 512 kB transmit buffer per port. - **Scalable Multiport Expansion:** Supports 8 to 64 serial ports per card using external connector boxes (NF116, NF216, NF316, F641/F642, IF108/208/308). Up to two cards per system for a total of 128 ports. - **Universal PCI Compatibility:** Operates in both 3.3 V and 5 V 33 MHz PCI slots; compatible with 32-bit and 64-bit PCI buses. - **Flexible Interface Configuration:** Each port can be independently configured as RS232, RS422, or RS485 via DIP switches on the connector boxes. - **High-Speed Serial Communication:** Supports baud rates from 110 bps to 230,400 bps (software-selectable), with hardware (RTS/CTS) and software (XON/XOFF) flow control. - **Operating System Support:** Comprehensive driver support for DOS, Windows 95/98/Me/NT/2000/XP/Vista/7, Linux, and SCO OpenServer. - **Industrial Reliability:** Designed for continuous operation in 5–40 °C environments with 10–90 % relative humidity.

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

- **High-Performance Embedded Processor:** Equipped with a 133 MHz TMPR3927 RISC CPU for intelligent I/O management and real-time data handling. - **Dual-Port SDRAM Architecture:** 16 MB SDRAM shared between the local processor and host CPU via PCI bus mapping, ensuring high-speed data exchange. - **Universal PCI Compatibility:** Supports both 3.3 V and 5 V PCI slots, compliant with 33 MHz PCI bus standards. - **Scalable Multiport Design:** Supports 8 to 64 serial ports per card through daisy-chained external connector boxes. - **Flexible Interface Configuration:** Each port can be configured independently as RS-232, RS-422, or RS-485 via DIP switches. - **Advanced UART Control:** Built-in FIFO-type 16C554 UART controllers in connector boxes for efficient serial buffering. - **User Programmable:** Allows custom firmware for time-critical or application-specific tasks to be executed on the card CPU. - **Comprehensive OS Support:** Drivers available for DOS, Windows 95/98/Me/NT/2000/XP/Vista/7, Linux, and SCO OpenServer. - **Expandable Architecture:** Up to 8 external boxes can be daisy-chained per card, each supporting 8 or 16 ports. - **Single IRQ Resource:** Only one IRQ required for up to 64 ports, minimizing system resource usage.

Manufacturer: Rayon

Category: PCI max 128 Serial

- **Connector Configuration:** DB44 male (DB44m) to DB37 female (DB37f) interface. - **Cable Length:** 0.7 m (700 mm), ideal for short-distance interconnections in control cabinets or rack-mounted systems. - **High Signal Integrity:** Designed for low-loss data and analog signal transmission between devices. - **Durable Construction:** Outer jacket made from **rayon-based insulation material**, providing flexibility, abrasion resistance, and protection against mechanical stress. - **Precision-Molded Connectors:** Ensures secure mating, stable electrical contact, and long-term reliability. - **Shielded Design (implied by D-sub standard):** Minimizes electromagnetic interference (EMI) and crosstalk in high-density electronic environments. - **Universal Compatibility:** Suitable for devices using standard D-subminiature connectors, including industrial controllers, measurement instruments, and communication modules. - **Compact Form Factor:** Short cable length reduces clutter and signal degradation in confined installations. - **Plug-and-Play Operation:** No configuration required; supports direct connection between compatible ports.

Manufacturer: Rayon

Category: PCI max 128 Serial

- **Intelligent Processor Architecture:** Built-in 3.3V intelligent processor for managing up to 64 serial ports, reducing host CPU load. - **Flexible Port Expansion:** Supports 8 to 64 serial ports via daisy-chained connector boxes (NF116, NF216, NF316). - **Multi-Voltage PCI Compatibility:** Operates in both 3.3V and 5V 33MHz PCI slots, ensuring compatibility with a wide range of systems. - **Advanced UART Control:** Integrated FIFO-type UART controller (16C554) for efficient serial data buffering and reduced latency. - **Configurable Interface Modes:** Each port can be independently configured as RS232, RS422, or RS485 via DIP switches on the connector boxes. - **High-Speed Communication:** Supports baud rates from 110 to 115,200 bps (up to 230,400 bps in some configurations). - **Operating System Support:** Compatible with DOS, Windows 95/98/Me/NT/2000/XP/Vista/7, Linux, and SCO OpenServer. - **Low Profile Design:** Compact 122 × 86 mm form factor suitable for space-constrained industrial PCs. - **Scalable System Integration:** Up to two LP640NU cards can be installed per system, supporting a total of 128 serial ports. - **Comprehensive Software Drivers:** Full driver support for major operating systems, including kernel-level integration for UNIX/Linux environments.

Manufacturer: Rayon

Category: PCI max 128 Serial

- **Connector Conversion:** Converts a DB25 female (25-pin) interface to a DB9 male (9-pin) interface. - **Compact Form Factor:** Miniature, low-profile design allows installation in tight spaces or directly on equipment ports without additional cabling. - **Passive Adapter:** No active electronic components; maintains direct pin-to-pin continuity for signal integrity. - **Durable Construction:** Metalized shell or nickel-plated housing provides mechanical strength and electromagnetic shielding. - **Universal Compatibility:** Complies with standard D-Sub connector dimensions and pin assignments, ensuring compatibility with RS-232, RS-422, and RS-485 serial communication systems. - **Ease of Use:** Plug-and-play design requires no configuration or external power. - **Corrosion Resistance:** Gold-plated or tin-plated contacts (depending on manufacturer variant) ensure long-term conductivity and resistance to oxidation. - **Secure Connection:** Precision-machined connectors with threaded jack screws for secure mating with corresponding D-Sub connectors. - **Signal Integrity:** Maintains low contact resistance and minimal signal loss across the interface. - **Versatile Application:** Suitable for computer serial ports, industrial controllers, instrumentation, and legacy communication equipment.

Manufacturer: Rayon

Category: PCI max 128 Serial

- **16 Independent RS232 Ports:** Each NF116 unit provides 16 fully functional RS232 serial ports via DB9 male connectors. - **Hardware-Controlled RS232 Interface:** Supports full RS232C hardware control lines (RTS, CTS, DTR, DSR, DCD, RI) for reliable communication. - **Built-in FIFO UART Controller:** Integrated **16C554** FIFO-type UART chip ensures efficient data buffering and reduced CPU overhead. - **Daisy-Chain Expandability:** Multiple NF116 boxes can be daisy-chained using DB37 connectors, allowing expansion up to **64 serial ports** per PCI slot when used with compatible Rayon multiport cards. - **Industrial-Grade Construction:** Compact metal enclosure (268 × 128 × 38 mm) designed for durability and EMI resistance. - **Flexible System Integration:** Compatible with Rayon’s **P640NU**, **P1016**, **P1032**, **P1048**, and **P1064** PCI multiport cards, as well as intelligent IOP3927F and P990F controllers. - **High-Speed Serial Communication:** Supports baud rates from **110 bps to 115,200 bps**, with UNIX-compatible speed mapping for 57,600, 76,800, and 115,200 bps. - **Comprehensive Flow Control:** Supports both **XON/XOFF software handshake** and **RTS/CTS hardware handshake**. - **Wide Environmental Tolerance:** Operates in 5–40°C and 10–90% RH environments, suitable for industrial and office deployments. - **Plug-and-Play Integration:** Designed for seamless connection via A640 cable to Rayon PCI cards, requiring minimal configuration.

Manufacturer: Rayon

Category: PCI max 128 Serial

- **16 Independent Serial Ports:** Provides sixteen RS422/RS485 serial communication ports via DB9 male connectors, enabling simultaneous multi-device connectivity. - **Configurable Interface per Port:** Each port can be independently configured as RS422 or RS485 using DIP switch settings, allowing mixed-mode operation within a single box. - **Built-in FIFO UART Controller:** Incorporates the advanced FIFO-type 16C554 UART controller for efficient data buffering and reduced CPU overhead, ensuring stable high-speed communication. - **Output Enable Timing Control:** A dedicated DIP switch allows adjustment of output enable timing for TXD/RXD signals, optimizing performance for different RS485 network topologies. - **Daisy-Chain Expandability:** Supports daisy-chain connection via DB37 male output and DB37 female input connectors, allowing up to four boxes to be linked for a total of 64 serial ports per PCI slot. - **Compact Industrial Design:** Housed in a durable metal enclosure measuring 268 × 128 × 38 mm, suitable for rack or panel mounting in industrial environments. - **Compatibility with Rayon Multiport Cards:** Fully compatible with Rayon’s P640NU intelligent multiport card and IOP3927F intelligent PCIIOP series cards, providing flexible system expansion. - **Wide Environmental Tolerance:** Designed for operation in environments with temperatures from 5°C to 40°C and humidity levels from 10% to 90% RH. - **Flexible System Integration:** Ideal for applications requiring multiple serial interfaces such as data acquisition, industrial automation, POS systems, and communication servers.

Manufacturer: Rayon

Category: PCI max 128 Serial

- **Triple Interface Support:** Each of the 16 ports can be independently configured as RS232, RS422, or RS485 via DIP switches, allowing mixed-mode operation within a single box. - **Built-in Advanced FIFO UART Controller:** Incorporates a 16C554 FIFO-type UART controller for efficient data buffering and reduced CPU overhead. - **High Port Density:** Provides 16 serial ports in a single compact enclosure, minimizing rack space and cabling complexity. - **Flexible Configuration:** Two DIP switch bits per port—one selects RS232 or RS422/RS485 mode, and the other selects RS422 or RS485 mode. - **Daisy-Chain Expandability:** Supports daisy-chaining via DB37 connectors (DB37 male output, DB37 female input) to expand up to 64 serial ports using multiple boxes. - **Hardware and Software Flow Control:** Supports both RTS/CTS hardware handshake and XON/XOFF software flow control. - **Wide Compatibility:** Designed to interface with Rayon’s P640NU and IOP3927F intelligent multiport cards, enabling scalable PCI-based serial expansion. - **Industrial-Grade Design:** Rugged metal enclosure with DB9 male connectors ensures durability and secure connections in industrial and commercial environments. - **Flexible Application Scenarios:** Suitable for local RS232 connections, remote RS422 links, and multi-drop RS485 networks. - **Compact Form Factor:** Space-efficient design (268 × 128 × 38 mm) for easy integration into control cabinets or communication racks.

Manufacturer: Rayon

Category: PCI max 128 Serial

- **Eight RS232C Ports per Box:** Each NF641N provides eight independent RS232 serial communication ports, each with full hardware control lines. - **Built-in FIFO UART Controller:** Integrated **16C554A** FIFO-type UART controller ensures efficient data buffering and high-speed communication. - **High-Speed Data Transmission:** Supports baud rates up to **230.4 kbps**, with compatibility for standard rates from 110 bps to 230,400 bps. - **Expandable System Architecture:** Daisy-chain capability allows up to **64 serial ports** using multiple NF641N boxes connected in series. - **Flexible Compatibility:** Designed to interface with multiple Rayon intelligent multiport cards, including **F960, F990, P960F, P990F, P640NU, IOP3927F, and A320 PCIe** cards. - **Compact and Durable Design:** Constructed with industrial-grade materials for reliability in demanding environments. - **Simple Power Requirement:** Operates on a single **5VDC** power input, minimizing power complexity. - **Optional RI Signal Support:** Standard NF641N does not support the Ring Indicator (RI) signal; users requiring RI functionality can order the **NF641NRI** variant. - **Hardware Flow Control:** Supports both **RTS/CTS** and **Xon/Xoff** flow control mechanisms. - **Temperature and Humidity Tolerance:** Designed for stable operation in a wide range of environmental conditions (5–40°C, 10–90% RH). - **Compact Dimensions:** 231 × 89 × 38 mm (9.1 × 3.5 × 1.5 inches), suitable for rack or desktop installation. - **Daisy-Chain Connectors:** Equipped with **DB37F (input)** and **DB37M (output)** connectors for chaining multiple boxes.

Manufacturer: Rayon

Category: PCI max 128 Serial

- **8-Port RS422 Interface:** Provides eight independent RS422 serial communication ports per box. - **Built-in FIFO UART Controller:** Integrated 16C554 controller with FIFO buffering for efficient data handling and reduced CPU load. - **High-Speed Data Transmission:** Supports baud rates up to 230.4 kbps, suitable for high-throughput serial applications. - **Expandable Architecture:** Daisy-chain capability allows up to 8 boxes (64 ports) to be connected to a single intelligent multiport card. - **Flexible Compatibility:** Designed to interface with multiple Rayon intelligent I/O cards, including: - A320 PCIe intelligent multiport card - P640NU PCI card - IOP3927F ISA/PCI intelligent I/O processor card - F960 and F990 ISA intelligent multiport cards - **Compact and Durable Design:** Industrial-grade enclosure with DB25 male connectors for each port and DB37 connectors for inter-box communication. - **Simple Power Requirements:** Operates on a single 5V DC power input. - **Environmental Robustness:** Operates reliably in temperatures from 5°C to 40°C and humidity up to 90% RH. - **Flexible Mounting:** Can be used standalone or fixed in multi-box configurations using optional brackets. - **Hardware Flow Control:** Supports Xon/Xoff and RTS/CTS flow control mechanisms for reliable data transmission. - **Ease of Integration:** Compatible with multiple operating systems (Windows NT/2000/XP, Linux, SCO UNIX) through Rayon’s driver packages.

Manufacturer: Rayon

Category: PCI max 128 Serial

- **16 RS232 Serial Ports:** Supports up to sixteen independent RS232C-compatible ports via one PCI slot. - **Universal PCI Compatibility:** Operates in both 5V and 3.3V PCI 33MHz bus slots, ensuring compatibility with legacy and modern motherboards. - **Single IRQ Resource:** Utilizes only one IRQ for all 16 ports, optimizing system resource allocation and minimizing conflicts. - **Intelligent Multi-Port Architecture:** Based on the P640NU intelligent multi-port card design, providing efficient data handling and reduced CPU load. - **Broad OS Support:** Compatible with DOS, Windows 95/98/Me, Windows NT/2000/XP/Vista/7, Linux, and SCO OpenServer. - **Flexible System Mapping:** Supports both memory-mapped and I/O-mapped configurations, automatically assigned by PCI BIOS. - **High-Speed Communication:** Each port supports baud rates from 110 to 115,200 bps, with UNIX compatibility for 50, 75, 150 bps mappings. - **Flow Control Options:** Supports both software (XON/XOFF) and hardware (RTS/CTS) handshaking. - **Compact Design:** 5.0 × 3.4 inch PCI card form factor suitable for standard PC enclosures. - **Industrial Reliability:** Designed for continuous operation in environments from 5°C to 40°C and humidity up to 90% RH. - **Upgradeable Architecture:** Compatible with Rayon’s PCIIOP intelligent series cards for future expansion.

Manufacturer: Rayon

Category: PCI max 128 Serial

- **High Port Density:** Supports **32 independent RS232 serial ports** via two external connector boxes (NF116). - **Universal PCI Compatibility:** Operates in both **5V and 3.3V PCI 33MHz bus slots**, ensuring compatibility with legacy and modern systems. - **Single IRQ Resource:** Utilizes **one IRQ** for all 32 ports, minimizing system resource consumption. - **Intelligent Architecture:** Based on the **P640NU intelligent multi-port card**, providing efficient data handling and reduced CPU load. - **Flexible System Mapping:** Supports both **memory-mapped** and **I/O-mapped** configurations for optimized performance and compatibility. - **Comprehensive OS Support:** Compatible with **DOS, Windows 95/98/Me, Windows NT/2000/XP/Vista/7, Linux, and SCO OpenServer**. - **Industrial-Grade Design:** Rugged construction with wide operating temperature and humidity ranges. - **Expandable and Modular:** Compatible with RAYON’s modular connector boxes (NF116, NF216, NF316) for scalable port configurations. - **Flow Control Options:** Supports both **XON/XOFF software** and **RTS/CTS hardware** handshaking. - **High-Speed Communication:** Each port configurable from **110 to 115,200 bps**, with UNIX-compatible baud rate mapping. - **Compact Form Factor:** PCI card dimensions of **5.0 × 3.4 inches (127 × 86 mm)**. - **Included Accessories:** Supplied with **A640 0.7m cable** and two **NF116 connector boxes**.

Manufacturer: Rayon

Category: PCI max 128 Serial

- **High-Density Serial Expansion:** Supports **48 RS232 serial ports** via three NF116 connector boxes, each providing 16 ports. - **Universal PCI Compatibility:** Operates in both **5V and 3.3V PCI 33MHz bus slots**, ensuring compatibility with legacy and modern systems. - **Single IRQ Resource Allocation:** Utilizes **one IRQ** for all 48 ports, minimizing system resource consumption. - **Intelligent Architecture:** Based on the **P640NU intelligent multi-port card**, providing efficient data handling and reduced CPU load. - **Flexible Memory Mapping:** Supports both **memory-mapped** and **I/O-mapped** configurations for optimized performance under different OS environments. - **Comprehensive OS Support:** Compatible with **DOS, Windows 95/98/Me, Windows NT/2000/XP/Vista/7, Linux, and SCO OpenServer**. - **Industrial-Grade Design:** Engineered for continuous operation in industrial environments with wide temperature and humidity tolerance. - **Modular Expansion:** Daisy-chain capable connector boxes allow scalable port expansion and simplified cabling. - **Hardware Flow Control:** Supports both **RTS/CTS hardware** and **XON/XOFF software** handshaking. - **High-Speed Communication:** Each port configurable from **110 to 115,200 bps**, with UNIX-compatible baud rate mapping. - **Compact Form Factor:** PCI card dimension of **5.0 × 3.4 inches**, suitable for standard PC enclosures. - **Upgradeable Platform:** Compatible with Rayon’s **PCIIOP intelligent series**, allowing future upgrades to local-processor-based cards (e.g., P990F, IOP3927F).

Manufacturer: Rayon

Category: PCI max 128 Serial

- **High Port Density:** Supports 64 independent RS232 serial ports through four NF116 connector boxes. - **Universal PCI Compatibility:** Operates in both 5V and 3.3V PCI 33MHz bus slots, ensuring compatibility with legacy and modern systems. - **Single IRQ Resource:** Utilizes only one IRQ for all 64 ports, minimizing system resource consumption. - **Intelligent Multi-Port Architecture:** Based on the P640NU intelligent multi-port card, enabling efficient data handling and reduced CPU load. - **Broad OS Support:** Compatible with DOS, Windows 95/98/Me, Windows NT/2000/XP/Vista/7, Linux, and SCO OpenServer. - **Flexible System Integration:** Modular design allows daisy-chaining of connector boxes for scalable port expansion. - **Industrial-Grade Design:** Engineered for continuous operation in industrial environments with wide temperature and humidity tolerance. - **Flow Control Options:** Supports both software (XON/XOFF) and hardware (RTS/CTS) handshaking. - **High-Speed Communication:** Each port configurable from 110 to 115,200 bps, with UNIX-compatible baud rate mapping. - **Upgradeable Platform:** Compatible with Rayon’s intelligent PCIIOP series cards (e.g., P990F, IOP3927F) for enhanced processing capability.

Manufacturer: Rayon

Category: PCI max 128 Serial

- **16 RS422/RS485 Serial Ports:** Supports up to sixteen independent serial communication channels in one PCI slot. - **Universal PCI Compatibility:** Operates in both **5V and 3.3V PCI 33MHz bus slots**, ensuring compatibility with a wide range of motherboards. - **Single IRQ Resource:** Utilizes only **one IRQ** for all 16 ports, minimizing system resource usage. - **Flexible Interface Configuration:** Each port can be individually configured as **RS422 or RS485** via DIP switches. - **High-Speed Communication:** Supports baud rates from **110 to 115,200 bps**, with UNIX-compatible mapping for 57,600, 76,800, and 115,200 bps. - **Comprehensive OS Support:** Compatible with **DOS, Windows 95/98/Me, Windows NT/2000/XP/Vista/7, Linux, and SCO OpenServer**. - **Intelligent Multi-Port Architecture:** Based on the **P640NU intelligent controller**, providing efficient data handling and reduced CPU load. - **Hardware and Software Flow Control:** Supports both **XON/XOFF** (software) and **RTS/CTS** (hardware) handshaking. - **Industrial-Grade Design:** Operates reliably in environments from **5°C to 40°C** with humidity up to **90% RH**. - **Upgradeable Platform:** Compatible with **PCIIOP intelligent series cards** (e.g., P990F, IOP3927F) for enhanced processing power. - **Compact Form Factor:** Standard PCI card size of **5.0 × 3.4 inches**, suitable for compact industrial PCs.

Manufacturer: Rayon

Category: PCI max 128 Serial

- **High Port Density:** Supports 32 RS422/RS485 serial ports via two NF216 connector boxes (16 ports per box). - **Universal PCI Compatibility:** Operates in both 5V and 3.3V PCI 33MHz bus slots. - **Single IRQ Resource:** All 32 ports share one IRQ assigned automatically by the PCI BIOS, minimizing system resource usage. - **Flexible Configuration:** Each port can be independently configured as RS422 or RS485 using DIP switches. - **Wide Baud Rate Range:** Supports 110 to 115,200 bps per port; UNIX systems can map 50/75/150 bps to 57,600/76,800/115,200 bps. - **Flow Control Options:** Supports both XON/XOFF software flow control and RTS/CTS hardware handshaking. - **Comprehensive OS Support:** Compatible with DOS, Windows 95/98/Me, Windows NT/2000/XP/Vista/7, Linux, and SCO OpenServer. - **Compact Design:** 5.0 x 3.4 inch PCI card form factor. - **Industrial Reliability:** Operating temperature 5°C–40°C, humidity 10–90% RH. - **Upgradeable Architecture:** Can be upgraded to the intelligent PCIIOP series (e.g., P990F or IOP3927F) using the same connector boxes. - **Plug-and-Play Resource Allocation:** PCI BIOS automatically assigns memory and I/O resources. - **Metal Box Structure:** Rugged external connector boxes for industrial environments.

Manufacturer: Rayon

Category: PCI max 128 Serial

- **High Port Density:** Supports 48 independent RS422/RS485 serial ports via three external connector boxes (NF216). - **Universal PCI Compatibility:** Operates in both 5V and 3.3V PCI 33MHz bus slots, ensuring compatibility with legacy and modern systems. - **Single IRQ Resource:** Utilizes only one IRQ for all 48 ports, minimizing system resource usage. - **Flexible Interface Configuration:** Each port can be independently configured as RS422 or RS485 using DIP switches. - **Wide Software Support:** Compatible with DOS, Windows 95/98/Me, Windows NT/2000/XP/Vista/7, Linux, and SCO OpenServer. - **Intelligent Architecture:** Based on the P640NU intelligent multi-port card platform, providing efficient data handling and reduced CPU load. - **High-Speed Communication:** Each port supports baud rates from 110 to 115,200 bps, with UNIX compatibility mappings for 57,600, 76,800, and 115,200 bps. - **Flow Control Options:** Supports both software (XON/XOFF) and hardware (RTS/CTS) flow control. - **Industrial Reliability:** Designed for continuous operation in industrial environments with wide temperature and humidity tolerance. - **Upgradeable Platform:** Compatible with Rayon’s intelligent PCIIOP series cards (e.g., P990F with Intel 80960JF processor, IOP3927F with 133MHz MIPS processor) using the same connector boxes.

Manufacturer: Rayon

Category: PCI max 128 Serial

- **High Port Density:** Supports 32 independent serial ports in a single PCI slot. - **Multi-Protocol Support:** Each port can be configured individually for RS232, RS422, or RS485 operation via DIP switches. - **Universal PCI Compatibility:** Operates in both 5V and 3.3V PCI 33MHz bus slots, ensuring compatibility with a wide range of systems. - **Single IRQ Operation:** All 32 ports share one IRQ assigned automatically by the PCI BIOS, minimizing system resource usage. - **Intelligent Architecture:** Based on the P640NU intelligent multi-port controller card, providing efficient data handling and reduced CPU load. - **Comprehensive OS Support:** Drivers available for DOS, Windows 95/98/Me, Windows NT/2000/XP/Vista/7, Linux, and SCO OpenServer. - **Flexible System Integration:** Modular design with detachable NF316 connector boxes and A640 interconnect cable. - **Industrial-Grade Design:** Rugged construction with wide operating temperature and humidity range. - **Upgradeable Platform:** Compatible with RAYON’s PCIIOP intelligent series cards (e.g., P990F, IOP3927F) for enhanced processing capability. - **Flow Control Options:** Supports both hardware (RTS/CTS) and software (XON/XOFF) handshaking. - **High-Speed Communication:** Configurable baud rates from 110 to 115,200 bps per port. - **Compact Form Factor:** 5.0 × 3.4 inch PCI card footprint for efficient space utilization.

Manufacturer: Rayon

Category: PCI max 128 Serial

- **High Port Density:** Supports 48 independent serial ports in a single PCI slot. - **Multi-Protocol Support:** Each port can be configured individually for RS232, RS422, or RS485 operation via DIP switches. - **Universal PCI Compatibility:** Operates in both 3.3V and 5V PCI 33MHz bus slots, ensuring compatibility with modern and legacy systems. - **Single IRQ Utilization:** All 48 ports share one IRQ assigned automatically by the PCI BIOS, minimizing system resource usage. - **Intelligent Architecture:** Based on the P640NU intelligent multi-port controller, providing efficient data handling and reduced CPU load. - **Flexible System Integration:** Modular design with external NF316 connector boxes (three units per system) connected via A640 cable. - **Comprehensive OS Support:** Drivers available for DOS, Windows 95/98/Me/NT/2000/XP/Vista/7, Linux, and SCO OpenServer. - **Industrial Reliability:** Designed for continuous operation in industrial environments with wide temperature and humidity tolerance. - **Upgradeable Platform:** Compatible with RAYON’s PCIIOP intelligent series cards (e.g., P990F, IOP3927F) for enhanced processing power. - **Standardized Connectors:** Uses DB9 male connectors for all ports, simplifying cabling and integration. - **Flow Control Options:** Supports both hardware (RTS/CTS) and software (XON/XOFF) flow control mechanisms. - **Baud Rate Flexibility:** Configurable per port from 110 to 115,200 bps, with UNIX compatibility mappings for 50–115,200 bps.

Manufacturer: Rayon

Category: PCI max 128 Serial