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IF308
8-port isolated RS232/422/485 DB9m connector box
210,00 EUR
inkl. Umsatzsteuer 249,90 EUR
- 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.
- 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.
1. Product Overview
Product Name: IF308 8-Port Isolated RS232/RS422/RS485 Connector Box
Model: IF308
Series: IF Series Multi-Port Serial Connector Boxes (includes IF108, IF208, IF308)
Article Number: IF308
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.computex.com.tw/rayon](http://www.computex.com.tw/rayon), [www.rayontech.com](http://www.rayontech.com)
The Rayon IF308 is a professional-grade 8-port ground-isolated RS232/RS422/RS485 connector box designed for industrial, laboratory, and enterprise communication systems requiring flexible serial connectivity. It provides configurable serial interfaces through DIP switches, enabling each port to operate independently as RS232, RS422, or RS485. The IF308 is part of Rayon’s modular IF-series, which also includes the IF108 (RS232 only) and IF208 (RS422/RS485 only). The IF308 combines the capabilities of both, offering maximum versatility for mixed-interface environments.
2. Key Features
- 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.
3. Technical Specifications
| Parameter | Specification |
|----------------|-------------------|
| Model | IF308 |
| Interface Types | RS232, RS422, RS485 (selectable per port) |
| Number of Ports | 8 |
| Connector Type | DB9 male (per port) |
| Controller Chip | FIFO type 16C554 UART |
| Isolation | Ground-isolated per port |
| Configuration Method | DIP switch (2 bits per port) |
| Daisy Chain Connectors | DB37 male output, DB37 female input |
| Dimensions | 268 mm (W) × 128 mm (D) × 38 mm (H) |
| Material | Metal enclosure (industrial-grade) |
| Operating Temperature | 5°C to 40°C |
| Storage Temperature | 0°C to 65°C |
| Operating Humidity | 10% to 90% RH (non-condensing) |
| Storage Humidity | 5% to 90% RH |
| Weight | Approx. 1.2–1.5 kg (typical for metal enclosure of this size) |
| Power Supply | Supplied via host interface (through P640NU or IOP3927F card) |
| Mounting Options | Desktop, panel, or rack-mount (depending on installation kit) |
| Color/Finish | Industrial gray or metallic finish |
| Compliance | RS232C, RS422, RS485 electrical standards |
4. Functionality
The IF308 functions as a modular serial interface expansion unit, converting a single host connection into eight isolated serial ports. Each port can be independently configured to operate in one of three serial communication standards:
- RS232 Mode: For point-to-point local device connections such as modems, terminals, or instrumentation.
- RS422 Mode: For long-distance, full-duplex communication between two devices, typically up to 1200 meters.
- RS485 Mode: For multi-drop, half-duplex communication supporting up to 32 devices on a shared bus.
Configuration is achieved through DIP switches located on the unit’s internal or rear panel. Each port uses two DIP switch bits:
- Bit 1: Selects RS232 or RS422/RS485 mode.
- Bit 2: Selects RS422 or RS485 when the first bit is set to RS422/RS485.
The IF308 connects to a host system via a Rayon P640NU or IOP3927F intelligent multiport card using an A640 cable. The daisy-chain capability allows multiple IF308 units to be linked, expanding the total number of available serial ports up to 32 per host card.
Typical Use Cases:
- Industrial automation systems requiring mixed serial protocols.
- Data acquisition and control systems.
- Communication hubs for instrumentation and measurement devices.
- Serial device servers and SCADA systems.
- Laboratory and test environments with diverse serial equipment.
- Multi-terminal or multi-node communication networks.
Compatibility:
- Fully compatible with Rayon’s P640NU and IOP3927F cards.
- Supports standard RS232C, RS422, and RS485 devices.
- Can be integrated into existing serial communication infrastructures.
5. Components & Accessories
Included Components:
- IF308 connector box (main unit)
- 8 × DB9 male serial ports
- DB37 input/output connectors for daisy chaining
- Internal DIP switch configuration interface
- User documentation or quick setup guide
Optional Accessories:
- A640 Cable: High-quality connection cable between IF308 and host card (P640NU or IOP3927F).
- Mounting Brackets: For rack or panel installation.
- Additional IF-Series Boxes: IF108 (RS232 only) and IF208 (RS422/RS485 only) for system expansion.
- Power and Signal Cables: Depending on installation requirements.
Connectors:
- DB9 Male (x8): Serial communication ports.
- DB37 Female (Input): Daisy-chain input from host or previous box.
- DB37 Male (Output): Daisy-chain output to next box.
6. Installation & Setup
Requirements:
- Compatible host card (P640NU or IOP3927F).
- A640 connection cable.
- Available PCI slot in host system (for the interface card).
- Proper grounding and environmental conditions within specified limits.
Installation Steps:
1. Mounting: Secure the IF308 box on a stable surface or mount it using optional brackets.
2. Connection to Host: Connect the IF308 to the host card using the A640 cable via the DB37 connector.
3. Daisy-Chaining (Optional): If multiple boxes are used, connect the DB37 output of the first box to the DB37 input of the next.
4. DIP Switch Configuration: Set each port’s DIP switches to the desired interface mode (RS232, RS422, or RS485).
5. Device Connection: Attach serial devices to the DB9 male connectors.
6. Power and Signal Verification: Ensure proper signal integrity and isolation before operation.
7. Driver/Software Setup: Install any required drivers or configuration utilities provided with the host card.
Configuration Notes:
- Each port’s interface mode must be set before powering the system.
- RS485 mode may require termination resistors depending on network topology.
- Ensure consistent grounding and shielding for optimal noise immunity.
7. Performance & Capabilities
- Data Handling: The integrated 16C554 FIFO UART provides 16-byte transmit and receive buffers per channel, minimizing data loss and improving throughput.
- Speed: Supports standard serial baud rates up to 115.2 kbps or higher depending on host card capabilities.
- Isolation: Each port is ground-isolated to prevent cross-interference and protect connected equipment.
- Scalability: Up to four IF308 boxes can be daisy-chained to achieve 32 isolated serial ports per host interface.
- Efficiency: Hardware-based flow control and buffering reduce CPU load on the host system.
- Reliability: Industrial-grade design ensures stable operation in environments with electrical noise or varying ground potentials.
- Limitations: The IF308 requires a compatible Rayon host card and cannot operate as a standalone USB or Ethernet converter. It is designed for PCI-based multiport systems.
8. Standards & Compliance
- Electrical Standards:
- RS232C (EIA/TIA-232)
- RS422 (EIA/TIA-422)
- RS485 (EIA/TIA-485)
- Isolation Compliance: Ground isolation per port for enhanced safety and signal integrity.
- Hardware Control Lines: Fully supports RTS/CTS, DTR/DSR, and other RS232 control signals.
- Environmental Compliance: Designed for operation within 5–40°C and 10–90% RH.
- Quality Assurance: Manufactured under Rayon Technology’s quality management system ensuring consistent performance and reliability.
- Regulatory Compliance: Meets general industrial and IT equipment safety and EMC standards applicable to serial communication devices.
9. Additional Information
Warranty:
Rayon Technology provides a standard manufacturer’s warranty covering defects in materials and workmanship. Warranty terms may vary by region and distributor.
Technical Support:
Comprehensive technical support is available via email and telephone. Rayon’s engineering team provides assistance with configuration, troubleshooting, and integration with host systems.
Maintenance:
- Periodic inspection of connectors and cables is recommended.
- Ensure DIP switches remain in correct positions during operation.
- Keep the unit free from dust and moisture.
- No internal user-serviceable parts; servicing should be performed by qualified personnel.
Firmware/Software Updates:
The IF308 itself is a hardware interface device and does not require firmware updates. However, associated host cards (P640NU, IOP3927F) may have driver or firmware updates available from Rayon’s website.
Product Family Overview:
- IF108: 8-port isolated RS232 connector box.
- IF208: 8-port isolated RS422/RS485 connector box.
- IF308: 8-port isolated RS232/RS422/RS485 connector box (multi-interface model).
Example Configurations:
- 1 × P640NU + 1 × IF208: 8 isolated RS422/RS485 ports.
- 1 × P640NU + 2 × IF208: 16 isolated RS422/RS485 ports.
- 1 × IOP3927F + 3 × IF308: 24 isolated RS232/RS422/RS485 ports.
- 1 × IOP3927F + 4 × IF308: 32 isolated RS232/RS422/RS485 ports.
Applications Summary:
- Industrial automation and control systems.
- Data acquisition and monitoring.
- Communication hubs for mixed serial networks.
- Laboratory instrumentation and testing setups.
- SCADA and process control environments.
- Multi-protocol serial device integration.
Summary
The Rayon IF308 is a robust, flexible, and scalable 8-port isolated RS232/RS422/RS485 connector box engineered for demanding industrial and enterprise communication environments. Its configurable interface per port, ground isolation, and daisy-chain expandability make it an ideal solution for systems requiring a combination of serial communication standards. With its 16C554 FIFO UART controller, the IF308 ensures efficient data handling and reliable performance. When paired with Rayon’s P640NU or IOP3927F intelligent multiport cards, it provides a powerful, modular platform for expanding serial connectivity up to 32 ports per PCI slot.
Built to industrial standards and backed by Rayon Technology’s expertise, the IF308 delivers exceptional versatility, reliability, and performance for a wide range of serial communication applications.
Product Name: IF308 8-Port Isolated RS232/RS422/RS485 Connector Box
Model: IF308
Series: IF Series Multi-Port Serial Connector Boxes (includes IF108, IF208, IF308)
Article Number: IF308
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.computex.com.tw/rayon](http://www.computex.com.tw/rayon), [www.rayontech.com](http://www.rayontech.com)
The Rayon IF308 is a professional-grade 8-port ground-isolated RS232/RS422/RS485 connector box designed for industrial, laboratory, and enterprise communication systems requiring flexible serial connectivity. It provides configurable serial interfaces through DIP switches, enabling each port to operate independently as RS232, RS422, or RS485. The IF308 is part of Rayon’s modular IF-series, which also includes the IF108 (RS232 only) and IF208 (RS422/RS485 only). The IF308 combines the capabilities of both, offering maximum versatility for mixed-interface environments.
2. Key Features
- 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.
3. Technical Specifications
| Parameter | Specification |
|----------------|-------------------|
| Model | IF308 |
| Interface Types | RS232, RS422, RS485 (selectable per port) |
| Number of Ports | 8 |
| Connector Type | DB9 male (per port) |
| Controller Chip | FIFO type 16C554 UART |
| Isolation | Ground-isolated per port |
| Configuration Method | DIP switch (2 bits per port) |
| Daisy Chain Connectors | DB37 male output, DB37 female input |
| Dimensions | 268 mm (W) × 128 mm (D) × 38 mm (H) |
| Material | Metal enclosure (industrial-grade) |
| Operating Temperature | 5°C to 40°C |
| Storage Temperature | 0°C to 65°C |
| Operating Humidity | 10% to 90% RH (non-condensing) |
| Storage Humidity | 5% to 90% RH |
| Weight | Approx. 1.2–1.5 kg (typical for metal enclosure of this size) |
| Power Supply | Supplied via host interface (through P640NU or IOP3927F card) |
| Mounting Options | Desktop, panel, or rack-mount (depending on installation kit) |
| Color/Finish | Industrial gray or metallic finish |
| Compliance | RS232C, RS422, RS485 electrical standards |
4. Functionality
The IF308 functions as a modular serial interface expansion unit, converting a single host connection into eight isolated serial ports. Each port can be independently configured to operate in one of three serial communication standards:
- RS232 Mode: For point-to-point local device connections such as modems, terminals, or instrumentation.
- RS422 Mode: For long-distance, full-duplex communication between two devices, typically up to 1200 meters.
- RS485 Mode: For multi-drop, half-duplex communication supporting up to 32 devices on a shared bus.
Configuration is achieved through DIP switches located on the unit’s internal or rear panel. Each port uses two DIP switch bits:
- Bit 1: Selects RS232 or RS422/RS485 mode.
- Bit 2: Selects RS422 or RS485 when the first bit is set to RS422/RS485.
The IF308 connects to a host system via a Rayon P640NU or IOP3927F intelligent multiport card using an A640 cable. The daisy-chain capability allows multiple IF308 units to be linked, expanding the total number of available serial ports up to 32 per host card.
Typical Use Cases:
- Industrial automation systems requiring mixed serial protocols.
- Data acquisition and control systems.
- Communication hubs for instrumentation and measurement devices.
- Serial device servers and SCADA systems.
- Laboratory and test environments with diverse serial equipment.
- Multi-terminal or multi-node communication networks.
Compatibility:
- Fully compatible with Rayon’s P640NU and IOP3927F cards.
- Supports standard RS232C, RS422, and RS485 devices.
- Can be integrated into existing serial communication infrastructures.
5. Components & Accessories
Included Components:
- IF308 connector box (main unit)
- 8 × DB9 male serial ports
- DB37 input/output connectors for daisy chaining
- Internal DIP switch configuration interface
- User documentation or quick setup guide
Optional Accessories:
- A640 Cable: High-quality connection cable between IF308 and host card (P640NU or IOP3927F).
- Mounting Brackets: For rack or panel installation.
- Additional IF-Series Boxes: IF108 (RS232 only) and IF208 (RS422/RS485 only) for system expansion.
- Power and Signal Cables: Depending on installation requirements.
Connectors:
- DB9 Male (x8): Serial communication ports.
- DB37 Female (Input): Daisy-chain input from host or previous box.
- DB37 Male (Output): Daisy-chain output to next box.
6. Installation & Setup
Requirements:
- Compatible host card (P640NU or IOP3927F).
- A640 connection cable.
- Available PCI slot in host system (for the interface card).
- Proper grounding and environmental conditions within specified limits.
Installation Steps:
1. Mounting: Secure the IF308 box on a stable surface or mount it using optional brackets.
2. Connection to Host: Connect the IF308 to the host card using the A640 cable via the DB37 connector.
3. Daisy-Chaining (Optional): If multiple boxes are used, connect the DB37 output of the first box to the DB37 input of the next.
4. DIP Switch Configuration: Set each port’s DIP switches to the desired interface mode (RS232, RS422, or RS485).
5. Device Connection: Attach serial devices to the DB9 male connectors.
6. Power and Signal Verification: Ensure proper signal integrity and isolation before operation.
7. Driver/Software Setup: Install any required drivers or configuration utilities provided with the host card.
Configuration Notes:
- Each port’s interface mode must be set before powering the system.
- RS485 mode may require termination resistors depending on network topology.
- Ensure consistent grounding and shielding for optimal noise immunity.
7. Performance & Capabilities
- Data Handling: The integrated 16C554 FIFO UART provides 16-byte transmit and receive buffers per channel, minimizing data loss and improving throughput.
- Speed: Supports standard serial baud rates up to 115.2 kbps or higher depending on host card capabilities.
- Isolation: Each port is ground-isolated to prevent cross-interference and protect connected equipment.
- Scalability: Up to four IF308 boxes can be daisy-chained to achieve 32 isolated serial ports per host interface.
- Efficiency: Hardware-based flow control and buffering reduce CPU load on the host system.
- Reliability: Industrial-grade design ensures stable operation in environments with electrical noise or varying ground potentials.
- Limitations: The IF308 requires a compatible Rayon host card and cannot operate as a standalone USB or Ethernet converter. It is designed for PCI-based multiport systems.
8. Standards & Compliance
- Electrical Standards:
- RS232C (EIA/TIA-232)
- RS422 (EIA/TIA-422)
- RS485 (EIA/TIA-485)
- Isolation Compliance: Ground isolation per port for enhanced safety and signal integrity.
- Hardware Control Lines: Fully supports RTS/CTS, DTR/DSR, and other RS232 control signals.
- Environmental Compliance: Designed for operation within 5–40°C and 10–90% RH.
- Quality Assurance: Manufactured under Rayon Technology’s quality management system ensuring consistent performance and reliability.
- Regulatory Compliance: Meets general industrial and IT equipment safety and EMC standards applicable to serial communication devices.
9. Additional Information
Warranty:
Rayon Technology provides a standard manufacturer’s warranty covering defects in materials and workmanship. Warranty terms may vary by region and distributor.
Technical Support:
Comprehensive technical support is available via email and telephone. Rayon’s engineering team provides assistance with configuration, troubleshooting, and integration with host systems.
Maintenance:
- Periodic inspection of connectors and cables is recommended.
- Ensure DIP switches remain in correct positions during operation.
- Keep the unit free from dust and moisture.
- No internal user-serviceable parts; servicing should be performed by qualified personnel.
Firmware/Software Updates:
The IF308 itself is a hardware interface device and does not require firmware updates. However, associated host cards (P640NU, IOP3927F) may have driver or firmware updates available from Rayon’s website.
Product Family Overview:
- IF108: 8-port isolated RS232 connector box.
- IF208: 8-port isolated RS422/RS485 connector box.
- IF308: 8-port isolated RS232/RS422/RS485 connector box (multi-interface model).
Example Configurations:
- 1 × P640NU + 1 × IF208: 8 isolated RS422/RS485 ports.
- 1 × P640NU + 2 × IF208: 16 isolated RS422/RS485 ports.
- 1 × IOP3927F + 3 × IF308: 24 isolated RS232/RS422/RS485 ports.
- 1 × IOP3927F + 4 × IF308: 32 isolated RS232/RS422/RS485 ports.
Applications Summary:
- Industrial automation and control systems.
- Data acquisition and monitoring.
- Communication hubs for mixed serial networks.
- Laboratory instrumentation and testing setups.
- SCADA and process control environments.
- Multi-protocol serial device integration.
Summary
The Rayon IF308 is a robust, flexible, and scalable 8-port isolated RS232/RS422/RS485 connector box engineered for demanding industrial and enterprise communication environments. Its configurable interface per port, ground isolation, and daisy-chain expandability make it an ideal solution for systems requiring a combination of serial communication standards. With its 16C554 FIFO UART controller, the IF308 ensures efficient data handling and reliable performance. When paired with Rayon’s P640NU or IOP3927F intelligent multiport cards, it provides a powerful, modular platform for expanding serial connectivity up to 32 ports per PCI slot.
Built to industrial standards and backed by Rayon Technology’s expertise, the IF308 delivers exceptional versatility, reliability, and performance for a wide range of serial communication applications.
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IF308_Catalog_en.pdf
PDF Catalog
