Comprehensive Product Summary – RAYON P3048 Universal PCIPORT Card

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### 1. Product Overview

Product Name: UPCI 48×RS232/RS422/RS485 Intelligent Serial Solution
Model: P3048
Series: Universal PCIPORT Intelligent Multi-Port Serial Card
Article Number: P3048
Manufacturer: RAYON Technology Co., Ltd.
Manufacturer Address: 2F, No. 177, Chung-Shan 2 Rd., Lu-Chou City, Taipei Hsien, Taiwan
Contact: Tel: +886-2-82858362 | Fax: +886-2-82857065
Email: rayon@ms1.hinet.net
Websites: [www.rayontech.com](http://www.rayontech.com), [www.computex.com.tw/rayon](http://www.computex.com.tw/rayon)

The RAYON P3048 is a high-density, intelligent PCI serial communication card designed for industrial and enterprise applications requiring up to 48 configurable serial ports. It supports RS232, RS422, and RS485 communication standards and operates in both 3.3V and 5V PCI 33MHz slots. The card integrates RAYON’s P640NU intelligent multi-port architecture and is compatible with a wide range of operating systems, including DOS, Windows (95 through Windows 7), Linux, and SCO OpenServer.

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### 2. Key Features

- 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.

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### 3. Technical Specifications

Card Dimensions: 5.0 × 3.4 inches (127 × 86 mm)
Weight: Approx. 150 g (card only)
Material: Multi-layer PCB with industrial-grade components
Connector Type: DB9 male (on NF316 boxes)
Interface Type: RS232, RS422, or RS485 selectable per port
Number of Ports: 48 (three NF316 boxes × 16 ports each)
Baud Rate Range: 110 – 115,200 bps (software-selectable)
Flow Control:
- Software: XON/XOFF
- Hardware: RTS/CTS
Bus Interface: PCI 2.2 compliant, 33 MHz, 32-bit, 3.3V/5V universal slot
Memory Mapping:
- 128 bytes for PCI controller
- Two 4 KB blocks for UART controller
I/O Mapping:
- 128 bytes I/O for PCI controller
- 256 bytes I/O for UART controller
- 64 bytes I/O for status registers
IRQ Assignment: Single IRQ automatically assigned by PCI BIOS
Operating Temperature: 5°C to 40°C
Storage Temperature: 0°C to 65°C
Operating Humidity: 10% – 90% RH (non-condensing)
Storage Humidity: 5% – 90% RH (non-condensing)

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### 4. Functionality

The P3048 functions as a high-performance serial communication interface for PCs and industrial controllers. It connects to up to three NF316 connector boxes via the A640 cable, each providing 16 configurable serial ports. Each port can independently operate in RS232, RS422, or RS485 mode, selectable through DIP switches on the NF316 boxes.

Use Cases and Applications:
- Industrial automation and control systems
- Multi-terminal data acquisition
- POS and kiosk systems
- Telecommunications and networking equipment
- SCADA and process control
- Serial device servers and console management
- Laboratory instrumentation and data logging

Compatibility:
- Fully compatible with standard PCI 33MHz slots (3.3V/5V)
- Supports up to two cards per system (96 ports total)
- Works with RAYON’s intelligent IOP3927 and PCIIOP series for advanced processing

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### 5. Components & Accessories

Included Components:
- 1 × P640NU intelligent multi-port PCI card
- 3 × NF316 connector boxes (each with 16 DB9 male ports)
- 1 × A640 interconnect cable (0.7 m length)

Optional Accessories:
- Additional NF316 boxes for expansion (up to 8 boxes per IOP3927 architecture)
- PCIIOP upgrade cards (P990F with Intel 80960JF CPU, IOP3927F with 133MHz MIPS CPU)
- Extended A640 cables for remote box placement
- Mounting brackets for rack or panel installation

Connectors:
- NF316 box: Dual 37-pin D-type connectors (for daisy-chaining)
- DB9 male connectors for serial ports

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### 6. Installation & Setup

Hardware Installation:
1. Power off the PC and disconnect AC power.
2. Insert the P3048 card into an available PCI slot (3.3V or 5V).
3. Connect the A640 cable from the card’s DB37 connector to the first NF316 box.
4. Daisy-chain additional NF316 boxes as required (up to three for 48 ports).
5. Secure boxes using provided brackets if mounted in series.
6. Power on the system and verify BIOS recognition of the PCI device.

Software Installation:
- DOS/Windows 95/98/Me: Use I/O map mode drivers.
- Windows NT/2000/XP/Vista/7: Use memory map mode drivers.
- Linux/SCO: Install source-based drivers from RAYON’s package (`/etc/rayon` directory).
- Driver Configuration:
- Assign COM port start numbers via driver setup utility.
- Verify port enumeration in Device Manager (Windows) or `/dev/tty` devices (Linux).

Mounting Options:
- Desktop or rack-mountable NF316 boxes
- Daisy-chain up to 8 boxes using 37-pin connectors for large-scale systems

Configuration:
- DIP switches on each NF316 box allow per-port selection of RS232, RS422, or RS485 mode.
- Baud rate and flow control configured via software or OS driver settings.

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### 7. Performance & Capabilities

Speed and Throughput:
- Each port supports up to 115,200 bps.
- Full-duplex communication on RS232 and RS422 modes.
- Automatic data direction control in RS485 mode.

Capacity:
- 48 ports per card, 2 cards per system (maximum 96 ports).
- Each port independently addressable and configurable.

Efficiency:
- Single IRQ for all ports reduces CPU overhead.
- Intelligent buffering via dual 4 KB UART memory blocks.
- Optimized for multi-threaded OS environments.

Limitations:
- DOS and Windows 9x limited to I/O map mode (no memory mapping).
- Maximum of two cards per system due to IRQ and resource constraints.
- Baud rate limited to 115,200 bps per port (standard UART limitation).

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### 8. Standards & Compliance

Electrical and Interface Standards:
- RS232C, RS422, RS485 compliant
- PCI 2.2 bus standard (33MHz, 32-bit)
- Universal PCI voltage support (3.3V/5V)

Software and OS Compliance:
- Microsoft Windows certified drivers (95 through 7)
- Linux kernel 2.2–2.6 compatible source drivers
- SCO OpenServer 5.0.x supported

Regulatory and Quality Standards:
- Manufactured under ISO 9001 quality management
- CE and FCC Class A compliant (industrial environment)
- RoHS-compliant materials and lead-free soldering

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### 9. Additional Information

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

Support & Maintenance:
- Technical support via email (rayon@ms1.hinet.net).
- Driver updates and documentation available on [www.rayontech.com](http://www.rayontech.com).
- RMA (Return Material Authorization) procedure available for defective units.

Maintenance Recommendations:
- Ensure adequate ventilation for NF316 boxes.
- Avoid hot-swapping cables while powered.
- Periodically check DIP switch settings and cable integrity.

Upgrade Path:
- Compatible with RAYON’s intelligent PCIIOP series for embedded CPU processing.
- P990F (Intel 80960JF) and IOP3927F (133MHz MIPS) cards can reuse the same NF316 boxes.

Environmental Considerations:
- Designed for industrial environments with wide humidity and temperature ranges.
- Suitable for continuous 24/7 operation.

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### Summary

The RAYON P3048 Universal PCIPORT Card is a robust, high-density serial communication solution engineered for industrial and enterprise systems requiring flexible, multi-protocol connectivity. Its intelligent architecture, universal PCI compatibility, and modular NF316 connector boxes make it ideal for large-scale serial networking, automation, and data acquisition applications. With support for 48 configurable RS232/RS422/RS485 ports, comprehensive OS driver support, and industrial-grade reliability, the P3048 delivers exceptional scalability and performance in a compact PCI form factor.

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