1. Product Overview

Product Name: PCIe 32-Port Serial Communication Card
Model: A1332
Series: A320 / A1032I Advanced PCIe Intelligent Multiport Series
Article Number: A1332
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 / info@rayontech.com.tw
Website: [www.rayontech.com](http://www.rayontech.com)

The Rayon A1332 is a high-density PCI Express (PCIe) serial communication card designed for industrial and enterprise applications requiring multiple serial interfaces. It integrates intelligent processing and supports up to 32 ground-isolated RS232 ports or a combination of RS232/RS422/RS485 interfaces. The card is part of Rayon’s A320/A1032I intelligent multiport family, offering scalable expansion up to 64 ports per system with a single IRQ assignment.

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2. Key Features

- High Port Density: Supports 32 independent serial ports in one PCIe slot (expandable up to 64 ports per system).
- Interface Flexibility: Configurable for RS232, RS422, or RS485 communication modes.
- Ground Isolation: Each port is galvanically isolated to prevent ground loops and electrical interference.
- Intelligent Processor Architecture: Built-in intelligent processor for efficient data handling and reduced CPU load.
- Unified IRQ Management: Only one IRQ is required for all ports, simplifying system resource allocation.
- Broad OS Compatibility: Supports DOS, Windows 95/98/Me/NT/2000/XP/Vista/7, Linux, and SCO OpenServer.
- High-Speed Communication: Baud rate configurable from 110 to 115,200 bps per port.
- Hardware and Software Flow Control: Supports RTS/CTS hardware handshake and XON/XOFF software flow control.
- Plug-and-Play PCIe Interface: Fully compliant with PCI Express bus standards for easy installation.
- Industrial Reliability: Designed for continuous operation in industrial environments with wide temperature and humidity tolerance.
- Expandable Architecture: Compatible with multiple connector boxes (IF108, IF208, IF308, NF116, NF216, NF316) for flexible port configurations.
- Comprehensive Driver Support: Includes drivers for multiple operating systems and kernel versions, with source-level Linux driver support for custom integration.

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3. Technical Specifications

Card Dimensions: 122 mm × 86 mm (approx. 10.0 × 9.5 cm)
Weight: Approx. 150 g (card only)
Connector Type: DB37 male connector on card; DB9 male connectors on external boxes
Cable: A640 0.7 m connection cable included
Bus Interface: PCI Express (3.3V and 5V compatible, 33 MHz)
Maximum Cards per System: 2
Memory Mapping:
- 128 bytes for PCI controller
- Two 4 KB memory 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 register

Electrical Characteristics:
- Operating Voltage: 3.3V / 5V PCIe slot power
- Isolation: Ground-isolated per port (IF series boxes)

Environmental Conditions:
- 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

Material: Industrial-grade PCB with EMI shielding and reinforced connectors

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4. Functionality

The A1332 PCIe card functions as an intelligent multiport serial communication interface, enabling high-performance data exchange between host systems and multiple serial devices. It uses an intelligent processor to offload communication tasks from the host CPU, improving system throughput and stability.

Use Cases and Applications:
- Industrial automation and control systems
- Data acquisition and instrumentation
- POS and kiosk systems
- Network management and console access
- Multi-user UNIX/Linux environments
- Serial device servers and communication hubs

Compatibility:
- Fully compatible with PCIe slots on standard PC/AT and industrial motherboards.
- Supports connection to Rayon’s IF108, IF208, IF308, NF116, NF216, and NF316 connector boxes for various interface types.
- Compatible with legacy Rayon cards (P640NU, P990F, IOP3927F) and accessories.

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5. Components & Accessories

Included Items:
- A1332 PCIe 32-Port Serial Card
- A640 0.7 m connection cable
- Driver and documentation package

Optional Accessories:
- IF108 Box: 8-port Ground Isolated RS232C
- IF208 Box: 8-port Ground Isolated RS422/RS485 (DIP switch selectable)
- IF308 Box: 8-port Ground Isolated RS232/RS422/RS485 (DIP switch selectable)
- NF116 Box: 16-port RS232C
- NF216 Box: 16-port RS422/RS485 selectable
- NF316 Box: 16-port RS232/RS422/RS485 selectable
- P640NU Card: PCI version compatible with same connector boxes
- P990F / IOP3927F Cards: Intelligent processor-based expansion options

Connector Details:
- DB9 male connectors on external boxes
- 37-pin D-type male connector on card for box connection
- Daisy-chain capability for up to 8 boxes (64 ports total)

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6. Installation & Setup

System Requirements:
- PCI Express slot (3.3V or 5V compatible)
- Supported OS: DOS, Windows 95/98/Me/NT/2000/XP/Vista/7, Linux, SCO OpenServer
- One available IRQ (assigned automatically by PCI BIOS)

Installation Steps:
1. Power off the system and insert the A1332 card into an available PCIe slot.
2. Connect the A640 cable between the card and the first connector box.
3. Daisy-chain additional boxes if required (up to 8 total).
4. Power on the system and install the appropriate driver.
5. Configure COM port assignments and verify operation using provided utilities (e.g., HyperTerminal, etty, om).

Mounting Options:
- Internal PCIe slot installation
- External boxes can be rack-mounted or chained using brackets for multi-box configurations

Configuration:
- DIP switches on connector boxes allow per-port interface selection (RS232/RS422/RS485).
- Baud rate and flow control configurable via software.
- Linux driver source allows kernel-level customization.

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7. Performance & Capabilities

Port Capacity:
- 32 ports per A1332 card (using four IF108 boxes)
- Up to 64 ports per system (two cards)

Baud Rate:
- 110 to 115,200 bps per port (standard)
- Extended rates up to 230,400 bps supported in some configurations

Flow Control:
- Software: XON/XOFF
- Hardware: RTS/CTS

Data Handling:
- FIFO type 16C554 UART controller per port
- Intelligent processor for optimized data flow
- Memory-mapped or I/O-mapped operation selectable

Efficiency:
- Single IRQ for all ports reduces CPU overhead
- Intelligent buffering minimizes latency and data loss

Limitations:
- Maximum of two cards per system
- Operating temperature limited to 40°C for optimal stability

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8. Standards & Compliance

Bus Interface: PCI Express 3.3V/5V, 33 MHz
UART Controller: FIFO type 16C554
Signal Standards: RS232C, RS422, RS485 (EIA/TIA compliant)
Isolation: Ground isolation per port (IF series)
Regulatory Compliance:
- CE and FCC Class A (industrial environment)
- RoHS compliant materials
- ISO 9001:2000 manufacturing standards

Software Standards:
- Compatible with major OS serial communication APIs
- Linux driver source adheres to kernel module standards (2.2, 2.4, 2.6, and later)
- SCO UNIX and Windows drivers certified for multiport operation

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9. Additional Information

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

Support & Maintenance:
- Technical support via email and web resources.
- Firmware and driver updates available from Rayon’s website.
- RMA (Return Material Authorization) procedure available for repairs.

Maintenance Recommendations:
- Ensure proper grounding and shielding in industrial environments.
- Avoid hot-swapping connector boxes while powered.
- Periodically check cable integrity and connector seating.

Repair Policy:
- Warranty repairs free of charge for verified defects.
- Out-of-warranty repairs available at flat-rate service charge.
- Contact Rayon Service Center for RMA number before returning products.

Documentation & Utilities:
- Installation guides for Windows, Linux, and SCO UNIX.
- Diagnostic utilities: `etty` (data test), `om` (port monitor).
- Source-level driver packages for Linux kernel integration.

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Summary

The Rayon A1332 PCIe 32-Port Serial Card is a robust, intelligent, and highly scalable communication interface designed for industrial and enterprise environments requiring multiple serial connections. With support for up to 64 ports per system, ground isolation, and flexible RS232/RS422/RS485 configurations, it provides a reliable solution for data acquisition, automation, and network management. Its intelligent processor architecture, broad OS compatibility, and comprehensive accessory ecosystem make it a versatile choice for system integrators and OEMs seeking high-performance serial connectivity.