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- One-to-Three Port Sharing: Enables a single RS232 master port to communicate with three independent RS232 slave ports simultaneously.
- Full Electrical Isolation: Both the master and all slave ports are galvanically isolated, ensuring protection against ground loops, electrical noise, and potential surges.
- Bidirectional Communication:
- Data from the master port (Port A) is broadcast to all three slave ports (Ports B, C, D) simultaneously.
- Data from any slave port (B, C, or D) is transmitted back to the master port (A) only.
- Double Ground Isolation: Provides isolation between the external devices and the S232io unit, as well as between each external device, ensuring maximum signal integrity and safety.
- Flexible Serial Interface: Supports isolated RS232 communication with DB9 male connectors.
- LED Status Indicators: Dedicated LEDs for power and data activity on each port (A, B, C, D) for easy monitoring and troubleshooting.
- Compact and Durable Design: Small form factor (90 × 150 × 27 mm) suitable for desktop or embedded installations.
- Low Power Consumption: Operates efficiently at 400 mA with a 5 VDC supply.
- Wide Environmental Tolerance: Designed for industrial temperature and humidity ranges.
- Plug-and-Play Operation: No software drivers required; hardware-based data routing ensures immediate functionality.
- Compatibility: Works seamlessly with standard RS232 devices such as PCs, printers, meters, controllers, and data loggers.
- Full Electrical Isolation: Both the master and all slave ports are galvanically isolated, ensuring protection against ground loops, electrical noise, and potential surges.
- Bidirectional Communication:
- Data from the master port (Port A) is broadcast to all three slave ports (Ports B, C, D) simultaneously.
- Data from any slave port (B, C, or D) is transmitted back to the master port (A) only.
- Double Ground Isolation: Provides isolation between the external devices and the S232io unit, as well as between each external device, ensuring maximum signal integrity and safety.
- Flexible Serial Interface: Supports isolated RS232 communication with DB9 male connectors.
- LED Status Indicators: Dedicated LEDs for power and data activity on each port (A, B, C, D) for easy monitoring and troubleshooting.
- Compact and Durable Design: Small form factor (90 × 150 × 27 mm) suitable for desktop or embedded installations.
- Low Power Consumption: Operates efficiently at 400 mA with a 5 VDC supply.
- Wide Environmental Tolerance: Designed for industrial temperature and humidity ranges.
- Plug-and-Play Operation: No software drivers required; hardware-based data routing ensures immediate functionality.
- Compatibility: Works seamlessly with standard RS232 devices such as PCs, printers, meters, controllers, and data loggers.
Comprehensive Product Summary – Rayon Technology S232io Serial Port Sharer
### 1. Product Overview
Product Name: S232io Serial Port Sharer
Model: S232io
Series: S400 Series
Article Number: S232io
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 S232io is a high-performance, isolated serial port sharing device designed to allow one RS232 master device to communicate simultaneously with up to three isolated RS232 slave devices. It belongs to Rayon’s S400 Series of serial communication products, which are engineered for industrial, laboratory, and automation environments requiring reliable, isolated, and flexible serial data distribution.
### 2. Key Features
- One-to-Three Port Sharing: Enables a single RS232 master port to communicate with three independent RS232 slave ports simultaneously.
- Full Electrical Isolation: Both the master and all slave ports are galvanically isolated, ensuring protection against ground loops, electrical noise, and potential surges.
- Bidirectional Communication:
- Data from the master port (Port A) is broadcast to all three slave ports (Ports B, C, D) simultaneously.
- Data from any slave port (B, C, or D) is transmitted back to the master port (A) only.
- Double Ground Isolation: Provides isolation between the external devices and the S232io unit, as well as between each external device, ensuring maximum signal integrity and safety.
- Flexible Serial Interface: Supports isolated RS232 communication with DB9 male connectors.
- LED Status Indicators: Dedicated LEDs for power and data activity on each port (A, B, C, D) for easy monitoring and troubleshooting.
- Compact and Durable Design: Small form factor (90 × 150 × 27 mm) suitable for desktop or embedded installations.
- Low Power Consumption: Operates efficiently at 400 mA with a 5 VDC supply.
- Wide Environmental Tolerance: Designed for industrial temperature and humidity ranges.
- Plug-and-Play Operation: No software drivers required; hardware-based data routing ensures immediate functionality.
- Compatibility: Works seamlessly with standard RS232 devices such as PCs, printers, meters, controllers, and data loggers.
### 3. Technical Specifications
Electrical & Interface Specifications:
- Interface Type: Isolated RS232
- Number of Ports: 4 total (1 master + 3 slaves)
- Port Designation:
- Port A: Master (Isolated RS232)
- Ports B, C, D: Slaves (Isolated RS232)
- Connector Type: DB9 male connectors (4 total)
- Signal Pins: TX+, TX−, RX+, RX−, Isolated GND
- Isolation: Full galvanic isolation between all ports and between each external device
- Auto Data Direction Control: Not applicable for RS232 (available in RS422/485 variants)
Power Requirements:
- Power Adapter Models: UP110 (US type) / UP220 (EU type)
- Input Voltage: 100–240 VAC
- Output Voltage: 5 VDC ±5%
- Output Current: 1000 mA
- Device Consumption: 400 mA @ 5 VDC
Physical Characteristics:
- Dimensions: 90 mm (W) × 150 mm (L) × 27 mm (H)
- Weight: Approximately 250–300 g (typical for aluminum enclosure)
- Enclosure Material: Industrial-grade metal housing (Rayon standard S400 enclosure)
- Color/Finish: Metallic gray or anodized aluminum finish
Environmental Conditions:
- Operating Temperature: 0°C to 55°C
- Storage Temperature: 0°C to 65°C
- Operating Humidity: 10% to 95% RH (non-condensing)
- Storage Humidity: 5% to 95% RH (non-condensing)
### 4. Functionality
The S232io Serial Port Sharer functions as a hardware-based data distribution and collection hub for RS232 communication lines. It allows a single master device (such as a PC, PLC, or controller) to send data simultaneously to three slave devices (such as printers, meters, or monitoring systems). Conversely, it allows any one of the slave devices to send data back to the master port, ensuring controlled, collision-free communication.
Operational Logic:
- Master-to-Slave Transmission:
Any data transmitted from Port A (master) is automatically replicated and sent to Ports B, C, and D simultaneously.
- Slave-to-Master Transmission:
Data from any one of the slave ports (B, C, or D) is directed exclusively to Port A. Only one slave can transmit at a time to prevent data collision.
- Isolation Function:
Each port is electrically isolated, preventing ground potential differences and ensuring safe operation in electrically noisy environments.
- Data Flow Control:
The device operates transparently without requiring software configuration. It supports standard RS232 signaling and baud rates as defined by the connected devices.
Typical Applications:
- Industrial automation systems requiring simultaneous data distribution to multiple terminals.
- Monitoring and recording systems for serial data (e.g., printer data logging).
- Laboratory instrumentation where one controller communicates with multiple measurement devices.
- Redundant data acquisition setups for safety-critical or audit-trail applications.
- Environments requiring galvanic isolation to prevent ground loops or electrical interference.
Compatibility:
- Fully compatible with standard RS232 communication protocols.
- Works with PCs, embedded controllers, PLCs, printers, barcode readers, sensors, and other serial devices.
- Can be integrated into existing RS232 networks without modification to software or firmware.
### 5. Components & Accessories
Included Items:
- S232io Serial Port Sharer main unit
- UP110 (US) or UP220 (EU) power adapter (100–240 VAC input, 5 VDC 1A output)
- User documentation or quick start guide (depending on shipment configuration)
Optional Accessories:
- RS232 DB9 male-to-female cables (various lengths)
- DIN-rail mounting kit (optional accessory for industrial installations)
- USB-to-RS232 converter (for systems without native serial ports)
- Replacement power adapter (UP110/UP220 series)
Connectors:
- Four DB9 male connectors labeled A (Master), B, C, D (Slaves)
- DC power input jack (5 VDC)
- LED indicators for power and data activity
### 6. Installation & Setup
Requirements:
- Power supply: 5 VDC, 400 mA minimum
- Compatible RS232 devices with DB9 connectors
- Proper cabling (straight-through or null-modem depending on device configuration)
Installation Steps:
1. Power Connection: Connect the supplied UP110/UP220 adapter to the DC input jack. Verify the PWR LED illuminates.
2. Device Connections:
- Connect the master device (e.g., PC or controller) to Port A.
- Connect up to three slave devices to Ports B, C, and D.
3. Signal Verification: Observe the ATRX, BTRX, CTRX, and DTRX LEDs for data activity.
4. Operation: Begin normal serial communication. The S232io automatically routes data according to its internal logic—no configuration or software setup required.
5. Mounting Options:
- Desktop placement (rubber feet for stability)
- Optional DIN-rail or wall mounting using accessory brackets
Configuration:
The S232io requires no DIP switch or software configuration since it supports only isolated RS232. (Note: Other S400 models supporting RS422/485 include DIP switches for interface selection.)
### 7. Performance & Capabilities
Data Transmission:
- Transparent hardware-level data forwarding
- Supports standard RS232 baud rates (typically up to 115.2 kbps, depending on connected devices)
- Simultaneous broadcast from master to all slaves
- Controlled single-source return path from slaves to master
Efficiency & Reliability:
- Hardware-based routing ensures zero software latency.
- Isolation prevents data corruption due to electrical noise or ground potential differences.
- LED indicators provide real-time status feedback for quick diagnostics.
Capacity:
- One master port and three slave ports (total four isolated channels)
- Each port operates independently with full isolation barriers
Limitations:
- Only one slave device can transmit to the master at a time (to prevent data collision).
- Does not support simultaneous multi-slave transmission.
- RS232-only interface (no RS422/485 support in this model; available in other S400 variants).
Performance Example:
In a printer monitoring setup, the S232io can distribute print data from a host PC to a printer and two monitoring PCs simultaneously. This ensures that all transmitted data is logged and verified, improving traceability and data integrity in critical printing or reporting applications.
### 8. Standards & Compliance
Electrical & Safety Compliance:
- Designed to meet international safety standards for low-voltage DC devices.
- Power adapter complies with global input voltage standards (100–240 VAC).
- Isolation design meets industrial-grade galvanic isolation requirements.
Environmental Compliance:
- RoHS-compliant materials (lead-free, environmentally safe components).
- Operating and storage conditions suitable for industrial and office environments.
Industry Standards:
- RS232 (EIA/TIA-232) compliant signaling
- DB9 connector pinout standardization
- Compatible with standard serial communication protocols used in automation, instrumentation, and computing industries.
Quality Assurance:
- Manufactured under Rayon Technology’s quality management system.
- Each unit tested for isolation integrity, signal continuity, and power stability before shipment.
### 9. Additional Information
Warranty:
- Standard manufacturer’s warranty (typically one year, depending on region and distributor).
- Covers defects in materials and workmanship under normal operating conditions.
Technical Support:
- Direct support available via email (rayon@ms1.hinet.net).
- Documentation, firmware updates (if applicable), and product information available on [www.rayontech.com](http://www.rayontech.com).
Maintenance:
- No regular maintenance required.
- Periodic inspection of connectors and cables recommended.
- Ensure proper ventilation and avoid exposure to excessive heat or moisture.
Product Updates & Related Models:
The S232io is part of Rayon’s modular S400 Series, which includes several interface combinations to suit different communication standards:
| Model | Master Port | Slave Ports | Isolation |
|--------|--------------|--------------|------------|
| S232 | RS232 | 3 × RS232 | None |
| S232o | RS232 | 3 × Isolated RS232 | Partial |
| S232io | Isolated RS232 | 3 × Isolated RS232 | Full |
| S432i | Isolated RS422/485 | 3 × RS232 | Partial |
| S432io | Isolated RS422/485 | 3 × Isolated RS232 | Full |
| S434io | Isolated RS422/485 | 3 × Isolated RS422/485 | Full |
| S234io | Isolated RS232 | 3 × Isolated RS422/485 | Full |
Use Case Example – Data Monitoring Application:
A company uses the S232io to monitor data sent from a host PC to a printer. The printer connects to Port B, while two monitoring PCs connect to Ports C and D. The S232io ensures that all print data is simultaneously transmitted to the printer and both monitoring PCs. This setup allows verification of printed data integrity and detection of unauthorized or erroneous print operations. The isolation ensures that any electrical fault or ground difference between devices does not affect communication reliability.
Advantages in Industrial and Office Environments:
- Enhances data reliability and traceability.
- Prevents ground loop interference in multi-device setups.
- Simplifies system expansion by allowing multiple devices to share a single communication line.
- Provides a cost-effective alternative to complex serial networking solutions.
### Summary
The Rayon S232io Serial Port Sharer is a robust, isolated RS232 communication hub designed for environments where one master device must reliably communicate with multiple slave devices. Its double isolation design ensures maximum electrical protection and signal integrity, while its transparent hardware operation guarantees compatibility with any standard RS232 equipment. Compact, efficient, and easy to deploy, the S232io is ideal for industrial automation, data monitoring, and instrumentation applications requiring safe and simultaneous serial data distribution.
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)
### 1. Product Overview
Product Name: S232io Serial Port Sharer
Model: S232io
Series: S400 Series
Article Number: S232io
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 S232io is a high-performance, isolated serial port sharing device designed to allow one RS232 master device to communicate simultaneously with up to three isolated RS232 slave devices. It belongs to Rayon’s S400 Series of serial communication products, which are engineered for industrial, laboratory, and automation environments requiring reliable, isolated, and flexible serial data distribution.
### 2. Key Features
- One-to-Three Port Sharing: Enables a single RS232 master port to communicate with three independent RS232 slave ports simultaneously.
- Full Electrical Isolation: Both the master and all slave ports are galvanically isolated, ensuring protection against ground loops, electrical noise, and potential surges.
- Bidirectional Communication:
- Data from the master port (Port A) is broadcast to all three slave ports (Ports B, C, D) simultaneously.
- Data from any slave port (B, C, or D) is transmitted back to the master port (A) only.
- Double Ground Isolation: Provides isolation between the external devices and the S232io unit, as well as between each external device, ensuring maximum signal integrity and safety.
- Flexible Serial Interface: Supports isolated RS232 communication with DB9 male connectors.
- LED Status Indicators: Dedicated LEDs for power and data activity on each port (A, B, C, D) for easy monitoring and troubleshooting.
- Compact and Durable Design: Small form factor (90 × 150 × 27 mm) suitable for desktop or embedded installations.
- Low Power Consumption: Operates efficiently at 400 mA with a 5 VDC supply.
- Wide Environmental Tolerance: Designed for industrial temperature and humidity ranges.
- Plug-and-Play Operation: No software drivers required; hardware-based data routing ensures immediate functionality.
- Compatibility: Works seamlessly with standard RS232 devices such as PCs, printers, meters, controllers, and data loggers.
### 3. Technical Specifications
Electrical & Interface Specifications:
- Interface Type: Isolated RS232
- Number of Ports: 4 total (1 master + 3 slaves)
- Port Designation:
- Port A: Master (Isolated RS232)
- Ports B, C, D: Slaves (Isolated RS232)
- Connector Type: DB9 male connectors (4 total)
- Signal Pins: TX+, TX−, RX+, RX−, Isolated GND
- Isolation: Full galvanic isolation between all ports and between each external device
- Auto Data Direction Control: Not applicable for RS232 (available in RS422/485 variants)
Power Requirements:
- Power Adapter Models: UP110 (US type) / UP220 (EU type)
- Input Voltage: 100–240 VAC
- Output Voltage: 5 VDC ±5%
- Output Current: 1000 mA
- Device Consumption: 400 mA @ 5 VDC
Physical Characteristics:
- Dimensions: 90 mm (W) × 150 mm (L) × 27 mm (H)
- Weight: Approximately 250–300 g (typical for aluminum enclosure)
- Enclosure Material: Industrial-grade metal housing (Rayon standard S400 enclosure)
- Color/Finish: Metallic gray or anodized aluminum finish
Environmental Conditions:
- Operating Temperature: 0°C to 55°C
- Storage Temperature: 0°C to 65°C
- Operating Humidity: 10% to 95% RH (non-condensing)
- Storage Humidity: 5% to 95% RH (non-condensing)
### 4. Functionality
The S232io Serial Port Sharer functions as a hardware-based data distribution and collection hub for RS232 communication lines. It allows a single master device (such as a PC, PLC, or controller) to send data simultaneously to three slave devices (such as printers, meters, or monitoring systems). Conversely, it allows any one of the slave devices to send data back to the master port, ensuring controlled, collision-free communication.
Operational Logic:
- Master-to-Slave Transmission:
Any data transmitted from Port A (master) is automatically replicated and sent to Ports B, C, and D simultaneously.
- Slave-to-Master Transmission:
Data from any one of the slave ports (B, C, or D) is directed exclusively to Port A. Only one slave can transmit at a time to prevent data collision.
- Isolation Function:
Each port is electrically isolated, preventing ground potential differences and ensuring safe operation in electrically noisy environments.
- Data Flow Control:
The device operates transparently without requiring software configuration. It supports standard RS232 signaling and baud rates as defined by the connected devices.
Typical Applications:
- Industrial automation systems requiring simultaneous data distribution to multiple terminals.
- Monitoring and recording systems for serial data (e.g., printer data logging).
- Laboratory instrumentation where one controller communicates with multiple measurement devices.
- Redundant data acquisition setups for safety-critical or audit-trail applications.
- Environments requiring galvanic isolation to prevent ground loops or electrical interference.
Compatibility:
- Fully compatible with standard RS232 communication protocols.
- Works with PCs, embedded controllers, PLCs, printers, barcode readers, sensors, and other serial devices.
- Can be integrated into existing RS232 networks without modification to software or firmware.
### 5. Components & Accessories
Included Items:
- S232io Serial Port Sharer main unit
- UP110 (US) or UP220 (EU) power adapter (100–240 VAC input, 5 VDC 1A output)
- User documentation or quick start guide (depending on shipment configuration)
Optional Accessories:
- RS232 DB9 male-to-female cables (various lengths)
- DIN-rail mounting kit (optional accessory for industrial installations)
- USB-to-RS232 converter (for systems without native serial ports)
- Replacement power adapter (UP110/UP220 series)
Connectors:
- Four DB9 male connectors labeled A (Master), B, C, D (Slaves)
- DC power input jack (5 VDC)
- LED indicators for power and data activity
### 6. Installation & Setup
Requirements:
- Power supply: 5 VDC, 400 mA minimum
- Compatible RS232 devices with DB9 connectors
- Proper cabling (straight-through or null-modem depending on device configuration)
Installation Steps:
1. Power Connection: Connect the supplied UP110/UP220 adapter to the DC input jack. Verify the PWR LED illuminates.
2. Device Connections:
- Connect the master device (e.g., PC or controller) to Port A.
- Connect up to three slave devices to Ports B, C, and D.
3. Signal Verification: Observe the ATRX, BTRX, CTRX, and DTRX LEDs for data activity.
4. Operation: Begin normal serial communication. The S232io automatically routes data according to its internal logic—no configuration or software setup required.
5. Mounting Options:
- Desktop placement (rubber feet for stability)
- Optional DIN-rail or wall mounting using accessory brackets
Configuration:
The S232io requires no DIP switch or software configuration since it supports only isolated RS232. (Note: Other S400 models supporting RS422/485 include DIP switches for interface selection.)
### 7. Performance & Capabilities
Data Transmission:
- Transparent hardware-level data forwarding
- Supports standard RS232 baud rates (typically up to 115.2 kbps, depending on connected devices)
- Simultaneous broadcast from master to all slaves
- Controlled single-source return path from slaves to master
Efficiency & Reliability:
- Hardware-based routing ensures zero software latency.
- Isolation prevents data corruption due to electrical noise or ground potential differences.
- LED indicators provide real-time status feedback for quick diagnostics.
Capacity:
- One master port and three slave ports (total four isolated channels)
- Each port operates independently with full isolation barriers
Limitations:
- Only one slave device can transmit to the master at a time (to prevent data collision).
- Does not support simultaneous multi-slave transmission.
- RS232-only interface (no RS422/485 support in this model; available in other S400 variants).
Performance Example:
In a printer monitoring setup, the S232io can distribute print data from a host PC to a printer and two monitoring PCs simultaneously. This ensures that all transmitted data is logged and verified, improving traceability and data integrity in critical printing or reporting applications.
### 8. Standards & Compliance
Electrical & Safety Compliance:
- Designed to meet international safety standards for low-voltage DC devices.
- Power adapter complies with global input voltage standards (100–240 VAC).
- Isolation design meets industrial-grade galvanic isolation requirements.
Environmental Compliance:
- RoHS-compliant materials (lead-free, environmentally safe components).
- Operating and storage conditions suitable for industrial and office environments.
Industry Standards:
- RS232 (EIA/TIA-232) compliant signaling
- DB9 connector pinout standardization
- Compatible with standard serial communication protocols used in automation, instrumentation, and computing industries.
Quality Assurance:
- Manufactured under Rayon Technology’s quality management system.
- Each unit tested for isolation integrity, signal continuity, and power stability before shipment.
### 9. Additional Information
Warranty:
- Standard manufacturer’s warranty (typically one year, depending on region and distributor).
- Covers defects in materials and workmanship under normal operating conditions.
Technical Support:
- Direct support available via email (rayon@ms1.hinet.net).
- Documentation, firmware updates (if applicable), and product information available on [www.rayontech.com](http://www.rayontech.com).
Maintenance:
- No regular maintenance required.
- Periodic inspection of connectors and cables recommended.
- Ensure proper ventilation and avoid exposure to excessive heat or moisture.
Product Updates & Related Models:
The S232io is part of Rayon’s modular S400 Series, which includes several interface combinations to suit different communication standards:
| Model | Master Port | Slave Ports | Isolation |
|--------|--------------|--------------|------------|
| S232 | RS232 | 3 × RS232 | None |
| S232o | RS232 | 3 × Isolated RS232 | Partial |
| S232io | Isolated RS232 | 3 × Isolated RS232 | Full |
| S432i | Isolated RS422/485 | 3 × RS232 | Partial |
| S432io | Isolated RS422/485 | 3 × Isolated RS232 | Full |
| S434io | Isolated RS422/485 | 3 × Isolated RS422/485 | Full |
| S234io | Isolated RS232 | 3 × Isolated RS422/485 | Full |
Use Case Example – Data Monitoring Application:
A company uses the S232io to monitor data sent from a host PC to a printer. The printer connects to Port B, while two monitoring PCs connect to Ports C and D. The S232io ensures that all print data is simultaneously transmitted to the printer and both monitoring PCs. This setup allows verification of printed data integrity and detection of unauthorized or erroneous print operations. The isolation ensures that any electrical fault or ground difference between devices does not affect communication reliability.
Advantages in Industrial and Office Environments:
- Enhances data reliability and traceability.
- Prevents ground loop interference in multi-device setups.
- Simplifies system expansion by allowing multiple devices to share a single communication line.
- Provides a cost-effective alternative to complex serial networking solutions.
### Summary
The Rayon S232io Serial Port Sharer is a robust, isolated RS232 communication hub designed for environments where one master device must reliably communicate with multiple slave devices. Its double isolation design ensures maximum electrical protection and signal integrity, while its transparent hardware operation guarantees compatibility with any standard RS232 equipment. Compact, efficient, and easy to deploy, the S232io is ideal for industrial automation, data monitoring, and instrumentation applications requiring safe and simultaneous serial data distribution.
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)
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S232io_Catalog.pdf
PDF Catalog
-
S400_Catalog.pdf
PDF Catalog
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S232 Application Note.pdf
Manual
No accessories available.