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P514

PCI 4-port 3*RS232 1*RS485 Card
98,00 EUR

including VAT 116.62 EUR

  • Manufacturer Rayon
  • Category: RS232 Mixed RS485 / RS422 4-Ports PCI
  • The Rayon P514 is a PCI-based intelligent four-port serial communication controller card designed for industrial and commercial PC systems. It provides three RS-232 ports and one isolated RS-422/RS-485 port with Auto Data Direction Control (ADDC). The card is fully Plug & Play compliant, supports shared IRQ mapping, and is compatible with a wide range of operating systems including DOS, Windows (95 through XP), Linux, and SCO OpenServer.
- Multi-Port Serial Expansion:
Provides four independent serial communication ports—three RS-232 and one RS-422/RS-485 (isolated)—for connecting multiple serial devices to a single PCI slot.

- Intelligent PCI Interface:
Utilizes an ASIC-based PCI controller that fully implements PCI Local Bus Specification Rev. 2.1, ensuring automatic configuration of I/O addresses and interrupts via the system BIOS.

- High Compatibility:
Each port is 16550A UART compatible, supporting standard serial communication protocols and baud rates from 50 to 115,200 bps.

- Auto Data Direction Control (ADDC):
The RS-485 port includes automatic data direction control for half-duplex communication, eliminating the need for manual RTS signal management.

- Plug & Play Configuration:
IRQ and I/O address assignments are automatically managed by the PCI BIOS, simplifying installation and avoiding resource conflicts.

- Shared IRQ Support:
Multiple PCIPORT cards can share a single IRQ, allowing up to eight cards per system for a total of 32 serial ports.

- Flexible Connector Options:
Includes a DB37 female connector on the card and a breakout cable (DB37F to 4×DB9M standard, or 4×DB25M optional).

- Cross-Platform Driver Support:
Compatible with DOS, Windows 95/98/ME/NT/2000/XP, Linux, and SCO OpenServer.

- Industrial-Grade Design:
Built with high-quality components and optional isolation for RS-422/RS-485 communication, ensuring reliable operation in electrically noisy environments.

Country of origin: Taiwan R.O.C.

Customs tariff number: 8473 3020 000

Comprehensive Product Summary – Rayon Technology P514 PCI 4-Port Serial Communication Card




### 1. Product Overview

Product Name: PCI 4-Port Serial Communication Card
Model: P514
Series: RAYON PCIPORT Series
Article Number: P514
Manufacturer: Rayon Technology Inc.
Manufacturer Locations:
- Headquarters: 2F, No. 177, Chung-Shan 2 Road, Lu-Chou City, Taipei Hsien, Taiwan, R.O.C.
- European Support: Acceed GmbH, Arnoldstraße 19, 40479 Düsseldorf, Germany

Product Description:
The Rayon P514 is a PCI-based intelligent four-port serial communication controller card designed for industrial and commercial PC systems. It provides three RS-232 ports and one isolated RS-422/RS-485 port with Auto Data Direction Control (ADDC). The card is fully Plug & Play compliant, supports shared IRQ mapping, and is compatible with a wide range of operating systems including DOS, Windows (95 through XP), Linux, and SCO OpenServer.




### 2. Key Features

- Multi-Port Serial Expansion:
Provides four independent serial communication ports—three RS-232 and one RS-422/RS-485 (isolated)—for connecting multiple serial devices to a single PCI slot.

- Intelligent PCI Interface:
Utilizes an ASIC-based PCI controller that fully implements PCI Local Bus Specification Rev. 2.1, ensuring automatic configuration of I/O addresses and interrupts via the system BIOS.

- High Compatibility:
Each port is 16550A UART compatible, supporting standard serial communication protocols and baud rates from 50 to 115,200 bps.

- Auto Data Direction Control (ADDC):
The RS-485 port includes automatic data direction control for half-duplex communication, eliminating the need for manual RTS signal management.

- Plug & Play Configuration:
IRQ and I/O address assignments are automatically managed by the PCI BIOS, simplifying installation and avoiding resource conflicts.

- Shared IRQ Support:
Multiple PCIPORT cards can share a single IRQ, allowing up to eight cards per system for a total of 32 serial ports.

- Flexible Connector Options:
Includes a DB37 female connector on the card and a breakout cable (DB37F to 4×DB9M standard, or 4×DB25M optional).

- Cross-Platform Driver Support:
Compatible with DOS, Windows 95/98/ME/NT/2000/XP, Linux, and SCO OpenServer.

- Industrial-Grade Design:
Built with high-quality components and optional isolation for RS-422/RS-485 communication, ensuring reliable operation in electrically noisy environments.




### 3. Technical Specifications

| Parameter | Specification |
|----------------|-------------------|
| Bus Interface | PCI Local Bus, 5V, 33 MHz |
| PCI Specification | PCI Local Bus Specification Rev. 2.1 |
| Ports | 4 total (3×RS-232, 1×RS-422/RS-485 isolated) |
| UART Compatibility | 16550A compatible |
| Baud Rate | 50 bps to 115,200 bps (standard); up to 921.6 kbps with 14.7456 MHz crystal |
| Interrupt Control | Plug & Play, IRQ shareable |
| I/O Mapping | Assigned automatically by PCI BIOS |
| Flow Control | XON/XOFF (software) and RTS/CTS (hardware) |
| Connector Type | DB37 female on card; breakout cable to DB9M or DB25M |
| Cable Options | DB37F to 4×DB9M (standard) or DB37F to 4×DB25M (optional) |
| Dimensions | 143 mm × 106 mm |
| Power Requirements | 5V PCI slot (universal version supports 3.3V) |
| Maximum Cards per System | 8 cards (32 ports total) |
| Operating Temperature | 0°C to 60°C (typical) |
| Storage Temperature | -20°C to 85°C |
| Relative Humidity | 5% to 95% non-condensing |
| Material | Multi-layer PCB with gold-plated edge connector |
| Weight | Approx. 150 g (card only) |




### 4. Functionality

Operational Overview:
The P514 card functions as a multi-port serial controller that offloads communication tasks from the host CPU. Each port includes transmit and receive buffers, reducing interrupt frequency and improving system performance. The card’s intelligent design ensures efficient data handling for high-throughput serial communication.

Use Cases and Applications:
- Industrial automation and control systems
- Data acquisition and instrumentation
- POS (Point of Sale) terminals
- Modem and printer connections
- SCADA and telemetry systems
- Embedded PC-based controllers

Compatibility:
The P514 is compatible with standard PCI slots in PC/AT systems and supports both 5V and 3.3V signaling (universal PCI). It can coexist with other PCI devices and supports IRQ sharing for multi-card installations.

Communication Modes:
- RS-232 Ports (A, B, C): Standard asynchronous serial communication for general-purpose devices.
- RS-422/RS-485 Port (D): Differential signaling for long-distance or multi-drop communication; supports both full-duplex (RS-422) and half-duplex (RS-485) modes.




### 5. Components & Accessories

Included Items:
- P514 PCI interface card
- DB37F to 4×DB9M breakout cable (standard)
- User manual and driver diskette

Optional Accessories:
- DB37F to 4×DB25M breakout cable
- RS4232-4 isolation box (for converting RS-232 to isolated RS-232/RS-422/RS-485)
- A640 DB37-to-DB37 cable for connecting to RS4232-4 box
- TB485 converter (DB9 to terminal block for RS-485 wiring)

Connectors:
- On-Board: DB37 female connector
- Breakout Cable: Four DB9 male connectors (or DB25 male optional)
- Signal Assignments:
- Ports A–C: RS-232 signals (TXD, RXD, RTS, CTS, DTR, DSR, DCD, RI, GND)
- Port D: RS-422/RS-485 differential pairs (TXD+/TXD–, RXD+/RXD–)




### 6. Installation & Setup

System Requirements:
- PC/AT compatible system with available PCI slot (5V or 3.3V)
- Supported operating system (DOS, Windows 95/98/ME/NT/2000/XP, Linux, SCO)

Installation Procedure:
1. Power off the system and remove the cover.
2. Insert the P514 card into an available PCI slot.
3. Connect the DB37 breakout cable to the card.
4. Power on the system.
5. The PCI BIOS automatically assigns I/O addresses and IRQs.
6. Install the appropriate driver for your operating system.

Jumper Configuration:
- JP1: Card number selection
- ON = First card
- OFF = Second card
This setting ensures consistent COM port numbering across multiple cards.

Mounting Options:
- Standard PCI slot mounting with rear bracket access to DB37 connector.
- Optional external RS4232-4 isolation box connection via DB37-to-DB37 cable.

Driver Installation:
- Windows 2000/XP/7: Plug & Play detection; specify driver path (A:\WIN2000 or equivalent).
- Windows NT4: Manual installation via Control Panel → Network → Add Adapter → “Other.”
- Windows 95/98/ME: Automatic detection; specify A:\WIN95 driver path.
- DOS: Run `PCIPORT.EXE` from driver diskette.
- Linux: Install via source package (`/etc/rayon/Install`); rebuild kernel module.
- SCO OpenServer: Use `/etc/custom` or manual build process.




### 7. Performance & Capabilities

- Data Throughput:
Each port supports up to 115.2 kbps (standard) or 921.6 kbps (optional high-speed crystal).

- Buffering:
Each UART includes 16-byte transmit and receive FIFOs, minimizing CPU interrupts and improving throughput.

- Interrupt Sharing:
Supports shared IRQ operation across multiple PCI cards, allowing efficient use of system resources.

- System Capacity:
Up to eight P514 cards can be installed in one system, providing a maximum of 32 serial ports.

- Efficiency:
Intelligent buffering and automatic flow control reduce CPU load and prevent data loss during high-speed communication.

- Limitations:
- RS-485 mode supports half-duplex communication only.
- Requires proper termination resistors for long cable runs.
- IRQ sharing requires compatible PCI devices.




### 8. Standards & Compliance

- PCI Compliance: PCI Local Bus Specification Revision 2.1
- Serial Interface Standards:
- RS-232C (EIA/TIA-232)
- RS-422 (EIA/TIA-422)
- RS-485 (EIA/TIA-485)
- UART Compatibility: 16C550A standard
- Electrical Isolation: Supported on RS-422/RS-485 port
- Operating System Drivers: Certified for DOS, Windows, Linux, SCO
- EMC & Safety: Designed to meet CE and FCC Class A requirements (industrial environments)




### 9. Additional Information

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

Technical Support:
- Rayon Technology (Taiwan): rayon@ms1.hinet.net
- Acceed GmbH (Europe): rayon@acceed.com
- Website: [www.acceed.com/rayon](http://www.acceed.com/rayon)

Maintenance:
- Keep connectors clean and free of dust.
- Avoid static discharge during handling (use anti-static wrist strap).
- Periodically verify cable integrity and connector seating.

Firmware & Driver Updates:
Updated drivers and installation guides are available from Rayon’s support website.
Windows 7 and later systems use the same driver package as Windows 2000/XP/Vista (Win32/Win64 versions).

Repair & RMA Procedure:
For defective units, contact Rayon or Acceed for an RMA number. Provide model, serial number, purchase order, and fault description.
Products under warranty are repaired free of charge; out-of-warranty repairs are subject to a flat-rate service fee.




### Summary

The Rayon P514 PCI 4-Port Serial Communication Card is a robust, industrial-grade solution for expanding serial connectivity in PC-based systems. With three RS-232 ports and one isolated RS-422/RS-485 port, it supports a wide range of serial devices and communication protocols. Its intelligent PCI interface, automatic configuration, and broad OS compatibility make it ideal for industrial automation, data acquisition, and embedded control applications. The card’s modular design, optional isolation accessories, and comprehensive driver support ensure long-term reliability and flexibility across diverse computing environments.
  • A400 - Cable DB37m to 4*DB25m 0,2m
  • A404 - Cable DB37m to 4*DB9m 0,2m