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- 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.
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.
Comprehensive Product Summary – RAYON TECHNOLOGY IOP3927R Intelligent PCI CPU Card
### 1. Product Overview
Product Name: IOP3927R Intelligent I/O Processor Card
Model: IOP3927R
Series: PCIIOP Intelligent Multiport Series
Article Number: IOP3927R
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
Web: [www.rayontech.com](http://www.rayontech.com)
The IOP3927R is a high-performance intelligent PCI CPU card designed for multiport serial communication applications. It integrates a 133 MHz RISC processor and 16 MB dual-port SDRAM to offload serial I/O processing from the host CPU, improving overall system throughput. The card supports up to 64 serial ports through modular connector boxes and is compatible with both 3.3 V and 5 V PCI bus slots.
### 2. Key Features
- 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.
### 3. Technical Specifications
Processor: 133 MHz TMPR3927 RISC CPU
Memory: 16 MB SDRAM (dual-port, shared between local and host CPU)
Bus Interface: PCI 32-bit, 33 MHz, 3.3 V/5 V universal slot
Connector: 37-pin D-type male connector for external I/O boxes
Expansion Capability: Up to 8 external boxes per card (8–64 ports total)
Supported Interfaces: RS‑232C, RS‑422, RS‑485 (depending on box type)
Baud Rate Range: 110 bps to 230,400 bps (typical 110–115,200 bps)
Flow Control: XON/XOFF (software), RTS/CTS (hardware)
Operating Temperature: 5 °C to 40 °C
Storage Temperature: 0 °C to 65 °C
Operating Humidity: 10 %–90 % RH
Storage Humidity: 5 %–90 % RH
Dimensions (Card): Approx. 5.0 × 3.4 inches
Dimensions (Box): 268 × 128 × 38 mm (NF116/NF216/NF316)
Weight: Approx. 0.3 kg (card only)
Power Supply: Supplied via PCI bus (includes +5 V, +12 V, −12 V lines to external boxes)
### 4. Functionality
The IOP3927R functions as an intelligent serial communication controller. Its onboard RISC CPU manages data flow between the host system and external serial interfaces, minimizing CPU overhead. Communication between the host and the IOP card occurs through dual-port RAM mapped into the PCI address space.
Use Cases:
- Multi-user terminal servers
- Industrial automation and control systems
- Data acquisition and monitoring
- POS and kiosk systems
- Network management and console servers
Compatibility:
- Works with RAYON connector boxes (NF116, NF216, NF316, F641/F642, R641/R642, A641/A642).
- Each box connects via a 37-pin cable and can be daisy-chained for expansion.
- Compatible with P640NU intelligent multiport cards and P1688U fixed 8-port cards.
### 5. Components & Accessories
Included Components:
- IOP3927R PCI CPU card
- 37-pin D-type cable (for connection to external box)
- Driver and utility software (DOS, Windows, Linux, SCO)
- Documentation and installation guide
Optional Connector Boxes:
| Model | Interface | Ports/Box | Controller | Connector | Configuration |
|--------|------------|------------|-------------|-------------|----------------|
| NF116 | RS‑232C | 16 | FIFO 16C554 | DB9 male | Fixed RS‑232 |
| NF216 | RS‑422/RS‑485 | 16 | FIFO 16C554 | DB9 male | DIP switch selectable |
| NF316 | RS‑232/RS‑422/RS‑485 | 16 | FIFO 16C554 | DB9 male | Dual DIP switch selectable |
| F641/F642 | RS‑232C/RS‑422 | 8 | FIFO 16C554 | DB25 male | Fixed interface |
| R641/R642 | RS‑232C/RS‑422 | 8 | CD1865 RISC controller | DB25 male | Fixed interface |
| A641/A642 | RS‑232C/RS‑422 | 8 | SCN2681 controller | DB25 male | Fixed interface |
Cables & Accessories:
- A640 cable (connects P640NU or IOP3927 to NF boxes)
- R801/R804 cables (DB25/DB9 breakout for RS‑232)
- R803 cable (for RS‑422/RS‑485 isolated interface)
- Daisy-chain brackets for multi-box mounting
### 6. Installation & Setup
Hardware Installation:
1. Power off the PC and disconnect AC power.
2. Insert the IOP3927R card into an available PCI slot.
3. Connect the 37-pin cable from the card to the first external box.
4. Daisy-chain additional boxes (up to 8 total).
5. Secure boxes using provided brackets for multi-box configurations.
6. Power on the system.
Software Installation:
- Windows NT/2000/XP/Vista/7:
Use Plug & Play detection or manual driver installation via Control Panel → Device Manager → Multi-port Serial Adapter → Update Driver.
Specify driver path (e.g., A:\WIN2000).
Configure COM port numbering via the driver’s Setup utility.
- Linux:
Install source-based driver from diskette using:
```
# cd /
# tar xvf /dev/fd0
# cd /etc/rayon
# ./Install
```
Select distribution (RedHat/Slackware), card type (IOP3927), and kernel version.
Device names follow `/dev/tty6[1–8][a–h]` for first card, `/dev/tty7[1–8][a–h]` for second card.
- SCO OpenServer:
Install via `/etc/custom` or `tar` method, rebuild kernel, and reboot.
Verify installation messages and LED indicators on boxes.
Configuration:
- DIP switches on NF216/NF316 boxes select RS‑232/422/485 modes.
- Each port can be independently configured.
- Flow control and baud rate settings are software-selectable.
### 7. Performance & Capabilities
- Maximum Ports: 64 per card (8 boxes × 8 or 16 ports)
- Maximum Cards per System: 2 (128 ports total)
- Baud Rate Range: 110 bps to 230,400 bps (typical 115,200 bps)
- Throughput: Up to 77 kBd per port (IOP3927R specification)
- Processor Speed: 133 MHz RISC (1 instruction per cycle)
- Memory Bandwidth: 16 MB dual-port SDRAM shared access
- Bus Speed: PCI 33 MHz
- Efficiency: Offloads serial processing from host CPU, improving multitasking performance in multi-user environments.
- Limitations:
- Requires matching box type (R-series boxes for IOP3927R).
- Power supply must support additional load for multiple boxes.
- Limited to two cards per system due to PCI resource mapping.
### 8. Standards & Compliance
- Electrical Interface Standards:
- RS‑232C (EIA/TIA‑232‑E)
- RS‑422 (EIA/TIA‑422‑B)
- RS‑485 (EIA/TIA‑485‑A)
- Bus Interface: PCI Local Bus Specification Revision 2.2
- UART Compatibility: 16C554 FIFO UART
- Operating System Drivers:
- DOS, Windows 95/98/Me, NT, 2000, XP, Vista, 7
- Linux (kernel 2.2, 2.4, 2.6 source-based drivers)
- SCO OpenServer 5.x
- Regulatory Compliance:
- CE and FCC Class A (industrial environment)
- RoHS compliant (lead-free manufacturing)
- Industry Standards: Compatible with DigiBoard, MOXA, and Stallion multiport architectures (see comparison charts).
### 9. Additional Information
Warranty:
- 1-year limited warranty covering defects in materials and workmanship.
- Excludes damage from misuse, unauthorized servicing, or electrical faults.
- Out-of-warranty repairs available at flat-rate service charge.
Support & Maintenance:
- Technical support via email (rayon@ms1.hinet.net).
- RMA procedure requires model, serial number, and fault description.
- Firmware and driver updates available from [www.rayontech.com](http://www.rayontech.com).
Maintenance Recommendations:
- Ensure adequate ventilation and stable power supply.
- Avoid hot-swapping cables while powered.
- Periodically check DIP switch settings and cable integrity.
Software Utilities:
- ETTY: Port test utility for transmit/receive verification.
- OM: Real-time port monitoring tool (16-port display).
- Setup: Driver configuration utility for COM port mapping.
Upgrade Path:
- Compatible with P640NU and P1688U cards.
- Connector boxes interchangeable across PCIIOP series.
- Supports future expansion to intelligent PCIIOP systems.
### Summary
The RAYON IOP3927R is a robust, intelligent PCI CPU card engineered for high-density serial communication environments. With its 133 MHz RISC processor, 16 MB dual-port SDRAM, and modular expansion up to 64 ports, it delivers exceptional performance for industrial, commercial, and multi-user applications. Its universal PCI compatibility, flexible interface configuration, and comprehensive OS driver support make it a versatile solution for system integrators and OEMs requiring reliable, scalable serial connectivity.
Manufacturer:
RAYON TECHNOLOGY CO., LTD.
2F, No. 177, Chung Shan 2 Rd., Lu Chou City, Taipei Hsien, Taiwan
Tel: +886-2-82858362 | Fax: +886-2-82857065
Email: rayon@ms1.hinet.net
Web: [www.rayontech.com](http://www.rayontech.com)
*(Approx. 12,000 characters / ~3,000 tokens)*
### 1. Product Overview
Product Name: IOP3927R Intelligent I/O Processor Card
Model: IOP3927R
Series: PCIIOP Intelligent Multiport Series
Article Number: IOP3927R
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
Web: [www.rayontech.com](http://www.rayontech.com)
The IOP3927R is a high-performance intelligent PCI CPU card designed for multiport serial communication applications. It integrates a 133 MHz RISC processor and 16 MB dual-port SDRAM to offload serial I/O processing from the host CPU, improving overall system throughput. The card supports up to 64 serial ports through modular connector boxes and is compatible with both 3.3 V and 5 V PCI bus slots.
### 2. Key Features
- 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.
### 3. Technical Specifications
Processor: 133 MHz TMPR3927 RISC CPU
Memory: 16 MB SDRAM (dual-port, shared between local and host CPU)
Bus Interface: PCI 32-bit, 33 MHz, 3.3 V/5 V universal slot
Connector: 37-pin D-type male connector for external I/O boxes
Expansion Capability: Up to 8 external boxes per card (8–64 ports total)
Supported Interfaces: RS‑232C, RS‑422, RS‑485 (depending on box type)
Baud Rate Range: 110 bps to 230,400 bps (typical 110–115,200 bps)
Flow Control: XON/XOFF (software), RTS/CTS (hardware)
Operating Temperature: 5 °C to 40 °C
Storage Temperature: 0 °C to 65 °C
Operating Humidity: 10 %–90 % RH
Storage Humidity: 5 %–90 % RH
Dimensions (Card): Approx. 5.0 × 3.4 inches
Dimensions (Box): 268 × 128 × 38 mm (NF116/NF216/NF316)
Weight: Approx. 0.3 kg (card only)
Power Supply: Supplied via PCI bus (includes +5 V, +12 V, −12 V lines to external boxes)
### 4. Functionality
The IOP3927R functions as an intelligent serial communication controller. Its onboard RISC CPU manages data flow between the host system and external serial interfaces, minimizing CPU overhead. Communication between the host and the IOP card occurs through dual-port RAM mapped into the PCI address space.
Use Cases:
- Multi-user terminal servers
- Industrial automation and control systems
- Data acquisition and monitoring
- POS and kiosk systems
- Network management and console servers
Compatibility:
- Works with RAYON connector boxes (NF116, NF216, NF316, F641/F642, R641/R642, A641/A642).
- Each box connects via a 37-pin cable and can be daisy-chained for expansion.
- Compatible with P640NU intelligent multiport cards and P1688U fixed 8-port cards.
### 5. Components & Accessories
Included Components:
- IOP3927R PCI CPU card
- 37-pin D-type cable (for connection to external box)
- Driver and utility software (DOS, Windows, Linux, SCO)
- Documentation and installation guide
Optional Connector Boxes:
| Model | Interface | Ports/Box | Controller | Connector | Configuration |
|--------|------------|------------|-------------|-------------|----------------|
| NF116 | RS‑232C | 16 | FIFO 16C554 | DB9 male | Fixed RS‑232 |
| NF216 | RS‑422/RS‑485 | 16 | FIFO 16C554 | DB9 male | DIP switch selectable |
| NF316 | RS‑232/RS‑422/RS‑485 | 16 | FIFO 16C554 | DB9 male | Dual DIP switch selectable |
| F641/F642 | RS‑232C/RS‑422 | 8 | FIFO 16C554 | DB25 male | Fixed interface |
| R641/R642 | RS‑232C/RS‑422 | 8 | CD1865 RISC controller | DB25 male | Fixed interface |
| A641/A642 | RS‑232C/RS‑422 | 8 | SCN2681 controller | DB25 male | Fixed interface |
Cables & Accessories:
- A640 cable (connects P640NU or IOP3927 to NF boxes)
- R801/R804 cables (DB25/DB9 breakout for RS‑232)
- R803 cable (for RS‑422/RS‑485 isolated interface)
- Daisy-chain brackets for multi-box mounting
### 6. Installation & Setup
Hardware Installation:
1. Power off the PC and disconnect AC power.
2. Insert the IOP3927R card into an available PCI slot.
3. Connect the 37-pin cable from the card to the first external box.
4. Daisy-chain additional boxes (up to 8 total).
5. Secure boxes using provided brackets for multi-box configurations.
6. Power on the system.
Software Installation:
- Windows NT/2000/XP/Vista/7:
Use Plug & Play detection or manual driver installation via Control Panel → Device Manager → Multi-port Serial Adapter → Update Driver.
Specify driver path (e.g., A:\WIN2000).
Configure COM port numbering via the driver’s Setup utility.
- Linux:
Install source-based driver from diskette using:
```
# cd /
# tar xvf /dev/fd0
# cd /etc/rayon
# ./Install
```
Select distribution (RedHat/Slackware), card type (IOP3927), and kernel version.
Device names follow `/dev/tty6[1–8][a–h]` for first card, `/dev/tty7[1–8][a–h]` for second card.
- SCO OpenServer:
Install via `/etc/custom` or `tar` method, rebuild kernel, and reboot.
Verify installation messages and LED indicators on boxes.
Configuration:
- DIP switches on NF216/NF316 boxes select RS‑232/422/485 modes.
- Each port can be independently configured.
- Flow control and baud rate settings are software-selectable.
### 7. Performance & Capabilities
- Maximum Ports: 64 per card (8 boxes × 8 or 16 ports)
- Maximum Cards per System: 2 (128 ports total)
- Baud Rate Range: 110 bps to 230,400 bps (typical 115,200 bps)
- Throughput: Up to 77 kBd per port (IOP3927R specification)
- Processor Speed: 133 MHz RISC (1 instruction per cycle)
- Memory Bandwidth: 16 MB dual-port SDRAM shared access
- Bus Speed: PCI 33 MHz
- Efficiency: Offloads serial processing from host CPU, improving multitasking performance in multi-user environments.
- Limitations:
- Requires matching box type (R-series boxes for IOP3927R).
- Power supply must support additional load for multiple boxes.
- Limited to two cards per system due to PCI resource mapping.
### 8. Standards & Compliance
- Electrical Interface Standards:
- RS‑232C (EIA/TIA‑232‑E)
- RS‑422 (EIA/TIA‑422‑B)
- RS‑485 (EIA/TIA‑485‑A)
- Bus Interface: PCI Local Bus Specification Revision 2.2
- UART Compatibility: 16C554 FIFO UART
- Operating System Drivers:
- DOS, Windows 95/98/Me, NT, 2000, XP, Vista, 7
- Linux (kernel 2.2, 2.4, 2.6 source-based drivers)
- SCO OpenServer 5.x
- Regulatory Compliance:
- CE and FCC Class A (industrial environment)
- RoHS compliant (lead-free manufacturing)
- Industry Standards: Compatible with DigiBoard, MOXA, and Stallion multiport architectures (see comparison charts).
### 9. Additional Information
Warranty:
- 1-year limited warranty covering defects in materials and workmanship.
- Excludes damage from misuse, unauthorized servicing, or electrical faults.
- Out-of-warranty repairs available at flat-rate service charge.
Support & Maintenance:
- Technical support via email (rayon@ms1.hinet.net).
- RMA procedure requires model, serial number, and fault description.
- Firmware and driver updates available from [www.rayontech.com](http://www.rayontech.com).
Maintenance Recommendations:
- Ensure adequate ventilation and stable power supply.
- Avoid hot-swapping cables while powered.
- Periodically check DIP switch settings and cable integrity.
Software Utilities:
- ETTY: Port test utility for transmit/receive verification.
- OM: Real-time port monitoring tool (16-port display).
- Setup: Driver configuration utility for COM port mapping.
Upgrade Path:
- Compatible with P640NU and P1688U cards.
- Connector boxes interchangeable across PCIIOP series.
- Supports future expansion to intelligent PCIIOP systems.
### Summary
The RAYON IOP3927R is a robust, intelligent PCI CPU card engineered for high-density serial communication environments. With its 133 MHz RISC processor, 16 MB dual-port SDRAM, and modular expansion up to 64 ports, it delivers exceptional performance for industrial, commercial, and multi-user applications. Its universal PCI compatibility, flexible interface configuration, and comprehensive OS driver support make it a versatile solution for system integrators and OEMs requiring reliable, scalable serial connectivity.
Manufacturer:
RAYON TECHNOLOGY CO., LTD.
2F, No. 177, Chung Shan 2 Rd., Lu Chou City, Taipei Hsien, Taiwan
Tel: +886-2-82858362 | Fax: +886-2-82857065
Email: rayon@ms1.hinet.net
Web: [www.rayontech.com](http://www.rayontech.com)
*(Approx. 12,000 characters / ~3,000 tokens)*
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