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UTS485
USB 2.0 to 4*RS232/422/485 Isolated Converter
82,00 EUR
including VAT 97.58 EUR
- Four Serial Ports in One Module: Supports two RS232 ports and two ground-isolated RS422/RS485 ports, enabling simultaneous multi-protocol communication.
- USB 2.0 Device Controller: Ensures high-speed data transfer and compatibility with modern USB interfaces.
- MOSCHIP MCS7840 Controller: Provides stable performance with integrated 512-byte FIFO per serial port for efficient data buffering.
- Full Electrical Isolation: RS422/RS485 ports are galvanically isolated to prevent ground loops and protect connected equipment.
- Auto Data Direction Control (RS485): Automatically manages data flow direction in half-duplex RS485 mode, simplifying network communication.
- Selectable Interface via DIP Switch: Each isolated port can be configured as RS422 or RS485, with optional termination resistor insertion.
- LED Indicators per Channel: Dedicated TX/RX activity LEDs for each port (A–D) and a power indicator for quick status monitoring.
- Bus-Powered Operation: Draws power directly from the USB bus (200 mA typical), eliminating the need for an external power supply.
- Compact Metal Enclosure: Durable and EMI-resistant housing suitable for industrial environments.
- Cross-Platform Driver Support: Compatible with Windows (Vista32/64, XP, WinCE, WHQL-certified), macOS, and Linux (kernel 2.6+).
- Fixed COM Port Assignment: Integrated EEPROM ensures consistent COM port numbering across USB ports and sessions.
- Flexible Redundancy and Monitoring: Ideal for redundant communication setups and real-time data monitoring in RS485 networks.
- USB 2.0 Device Controller: Ensures high-speed data transfer and compatibility with modern USB interfaces.
- MOSCHIP MCS7840 Controller: Provides stable performance with integrated 512-byte FIFO per serial port for efficient data buffering.
- Full Electrical Isolation: RS422/RS485 ports are galvanically isolated to prevent ground loops and protect connected equipment.
- Auto Data Direction Control (RS485): Automatically manages data flow direction in half-duplex RS485 mode, simplifying network communication.
- Selectable Interface via DIP Switch: Each isolated port can be configured as RS422 or RS485, with optional termination resistor insertion.
- LED Indicators per Channel: Dedicated TX/RX activity LEDs for each port (A–D) and a power indicator for quick status monitoring.
- Bus-Powered Operation: Draws power directly from the USB bus (200 mA typical), eliminating the need for an external power supply.
- Compact Metal Enclosure: Durable and EMI-resistant housing suitable for industrial environments.
- Cross-Platform Driver Support: Compatible with Windows (Vista32/64, XP, WinCE, WHQL-certified), macOS, and Linux (kernel 2.6+).
- Fixed COM Port Assignment: Integrated EEPROM ensures consistent COM port numbering across USB ports and sessions.
- Flexible Redundancy and Monitoring: Ideal for redundant communication setups and real-time data monitoring in RS485 networks.
Comprehensive Product Summary – UTS485 USB 2.0 to 4-Port RS232/422/485 Isolated Converter
### 1. Product Overview
Product Name: UTS485
Model: UTS485-002
Series: USB to Serial Port Converter Series
Article Number: UTS485
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 UTS485 is a professional-grade USB 2.0 to 4-port isolated serial converter designed to provide robust, flexible, and isolated communication between a USB host and multiple serial devices. It integrates two RS232 ports and two ground-isolated RS422/RS485 ports within a compact metal enclosure, offering a reliable solution for industrial, laboratory, and automation environments requiring mixed serial communication standards.
### 2. Key Features
- Four Serial Ports in One Module: Supports two RS232 ports and two ground-isolated RS422/RS485 ports, enabling simultaneous multi-protocol communication.
- USB 2.0 Device Controller: Ensures high-speed data transfer and compatibility with modern USB interfaces.
- MOSCHIP MCS7840 Controller: Provides stable performance with integrated 512-byte FIFO per serial port for efficient data buffering.
- Full Electrical Isolation: RS422/RS485 ports are galvanically isolated to prevent ground loops and protect connected equipment.
- Auto Data Direction Control (RS485): Automatically manages data flow direction in half-duplex RS485 mode, simplifying network communication.
- Selectable Interface via DIP Switch: Each isolated port can be configured as RS422 or RS485, with optional termination resistor insertion.
- LED Indicators per Channel: Dedicated TX/RX activity LEDs for each port (A–D) and a power indicator for quick status monitoring.
- Bus-Powered Operation: Draws power directly from the USB bus (200 mA typical), eliminating the need for an external power supply.
- Compact Metal Enclosure: Durable and EMI-resistant housing suitable for industrial environments.
- Cross-Platform Driver Support: Compatible with Windows (Vista32/64, XP, WinCE, WHQL-certified), macOS, and Linux (kernel 2.6+).
- Fixed COM Port Assignment: Integrated EEPROM ensures consistent COM port numbering across USB ports and sessions.
- Flexible Redundancy and Monitoring: Ideal for redundant communication setups and real-time data monitoring in RS485 networks.
### 3. Technical Specifications
Physical Characteristics:
- Dimensions: 150 mm (L) × 84 mm (W) × 25 mm (H)
- Enclosure Material: Metal (EMI-shielded)
- Weight: Approx. 300 g (typical, including casing)
USB Interface:
- Connector Type: USB Type-B female
- Standard: USB 2.0 (Full-Speed/High-Speed compatible)
- Controller IC: MOSCHIP MCS7840
- FIFO Buffer: 512 bytes per serial port
- Power Source: USB bus-powered (5 V DC, 200 mA typical)
- Optional Power Input: 5 V DC via terminal block (OEM configuration)
RS232 Interface:
- Connector Type: DB9 male (x2, Ports A and B)
- Signal Ground: Common with USB power ground
- Pinout:
1. DCD, 2. RXD, 3. TXD, 4. DTR, 5. GND, 6. DSR, 7. RTS, 8. CTS, 9. RI
- Number of Ports: 2
- Isolation: Non-isolated (shared ground with USB)
RS422/RS485 Interface:
- Connector Type: 5-pin screw terminal block (x2, Ports C and D)
- Number of Ports: 2
- Isolation: Each port fully isolated from USB and RS232 ground
- Selectable Mode: RS422 (full-duplex) or RS485 (half-duplex, 2-wire or 4-wire)
- Signal Pins: TX+, TX−, RX+, RX−, Isolated GND
- Termination: 120 Ω resistor selectable via DIP switch
- Auto Direction Control: Supported in RS485 mode
- Configuration: DIP switch selectable for interface type and termination
Environmental Conditions:
- Operating Temperature: 0°C to 55°C
- Storage Temperature: 0°C to 65°C
- Operating Humidity: 0% to 95% RH (non-condensing)
- Storage Humidity: 5% to 95% RH (non-condensing)
### 4. Functionality
The UTS485 functions as a USB-to-multi-serial converter, bridging a USB host system to multiple serial communication standards. It enables a single USB port to manage up to four independent serial channels:
- Ports A & B: RS232 for local device connections (e.g., sensors, controllers, modems).
- Ports C & D: RS422/RS485 for long-distance or industrial network communication.
Each RS422/RS485 port can be configured via DIP switches for:
- RS422 full-duplex operation (4-wire)
- RS485 half-duplex operation (2-wire or 4-wire)
- Optional 120 Ω termination resistor insertion
Use Cases:
- Industrial automation and process control
- SCADA and PLC communication
- Data acquisition systems
- Serial device monitoring and redundancy setups
- Laboratory instrumentation
- Long-distance serial communication over twisted pair
Compatibility:
- Operating Systems: Windows (98SE, Me, 2000, XP, 2003, Vista, WinCE), macOS, Linux (kernel 2.6+)
- Driver Availability: WHQL-certified Windows drivers; source-based Linux drivers
- Device Enumeration: Appears as four COM ports (e.g., COM3–COM6) in Windows or /dev/ttyUSB0–3 in Linux
### 5. Components & Accessories
Included Items:
- UTS485 Converter Module
- U101 USB Cable: 6 ft USB Type-A to Type-B cable for host connection
- User Manual and Driver Package: Includes Windows and Linux drivers, installation guides, and troubleshooting documentation
Optional Accessories:
- External 5V Power Input (OEM): Via terminal block for custom integration
- Related Products:
- TWIN485: Dual isolated RS232-to-RS422/485 converter
- P422I PCI Card: Two isolated RS422/485 ports
- P485 PCI Card: Four isolated RS422/485 ports
### 6. Installation & Setup
Hardware Setup Procedure:
1. Configure DIP Switches:
- Set interface type (RS422 or RS485) for Ports C and D.
- Select termination resistor insertion if required.
2. Wire Terminal Blocks:
- Connect TX+/TX− and RX+/RX− lines according to the target interface.
3. Connect RS232 Devices:
- Attach devices to DB9 connectors (Ports A and B).
4. Connect USB Cable:
- Use the U101 cable to link the UTS485 to the PC’s USB port.
5. Power On:
- The PWR LED illuminates when USB power is active.
6. Install Drivers:
- Follow OS-specific installation steps (see below).
Driver Installation (Windows):
- Run MSSETUP.exe from the provided driver package.
- Alternatively, specify the driver directory during Plug & Play detection.
- Supported OS: Windows 98SE, Me, 2000, XP, 2003, Vista (32/64-bit), WinCE.
- After installation, four COM ports appear in Device Manager.
Driver Installation (Linux):
- Extract source files and compile using `make`.
- Load module with `make load` to create `/dev/ttyUSB0–3`.
- Use `make install` for automatic loading at boot.
- Supports kernel 2.6 and later.
COM Port Assignment:
- Each UTS485 unit includes an EEPROM with a unique serial number.
- Ensures consistent COM port numbering across USB ports and sessions.
### 7. Performance & Capabilities
- Data Throughput: High-speed USB 2.0 interface with efficient 512-byte FIFO per port ensures smooth data flow even under heavy load.
- Isolation: RS422/RS485 ports are galvanically isolated, protecting host and devices from voltage spikes and ground potential differences.
- Auto Direction Control: In RS485 mode, the converter automatically manages transmit/receive switching, eliminating manual RTS control.
- Reliability: Metal enclosure and isolated design enhance durability and signal integrity in noisy industrial environments.
- Power Efficiency: Operates entirely from USB power (200 mA typical), minimizing system complexity.
- LED Indicators: Real-time visual feedback for power and data activity on all ports.
- Limitations: RS232 ports share ground with USB; isolation applies only to RS422/RS485 ports.
### 8. Standards & Compliance
- USB Compliance: USB 2.0 Full-Speed/High-Speed compatible
- Driver Certification: Windows WHQL-certified drivers
- Electrical Isolation: Meets industrial isolation standards for RS422/RS485 interfaces
- Environmental Compliance: Designed for industrial temperature and humidity ranges
- Regulatory: Conforms to CE and FCC Class B emission standards (typical for Rayon products)
- Industry Standards Supported:
- EIA/TIA-232 (RS232)
- EIA/TIA-422 (RS422)
- EIA/TIA-485 (RS485)
### 9. Additional Information
Warranty:
- Duration: 1-year limited warranty
- Coverage: Defects in materials and workmanship
- Exclusions: Damage from misuse, unauthorized servicing, or electrical faults
- Repair Policy:
- In-warranty repairs: No charge
- Out-of-warranty repairs: Flat-rate service fee
- Handling/testing fee applies if returned units are found functional
Support & RMA Procedure:
- Contact Rayon Technology via email before returning products to verify issue cause.
- Provide model number, serial number, reason for return, and purchase order.
- Obtain RMA number and return instructions from Rayon Service Representative.
Maintenance:
- Periodically verify DIP switch settings and cable integrity.
- Ensure proper grounding and termination in RS485 networks.
- Use only the supplied or equivalent USB cable for reliable operation.
Software Updates:
- Updated drivers and documentation available at [www.moschip.com](http://www.moschip.com) and [www.rayontech.com](http://www.rayontech.com).
### Summary
The Rayon UTS485 USB 2.0 to 4-Port RS232/422/485 Isolated Converter is a versatile, industrial-grade communication interface designed for engineers and system integrators requiring robust serial connectivity. Its combination of dual RS232 and dual isolated RS422/RS485 ports in a single, compact, USB-powered module provides exceptional flexibility for mixed serial environments. With auto-direction control, per-port LED indicators, EEPROM-based COM port retention, and cross-platform driver support, the UTS485 delivers reliable, high-performance serial communication for automation, monitoring, and data acquisition applications.
### 1. Product Overview
Product Name: UTS485
Model: UTS485-002
Series: USB to Serial Port Converter Series
Article Number: UTS485
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 UTS485 is a professional-grade USB 2.0 to 4-port isolated serial converter designed to provide robust, flexible, and isolated communication between a USB host and multiple serial devices. It integrates two RS232 ports and two ground-isolated RS422/RS485 ports within a compact metal enclosure, offering a reliable solution for industrial, laboratory, and automation environments requiring mixed serial communication standards.
### 2. Key Features
- Four Serial Ports in One Module: Supports two RS232 ports and two ground-isolated RS422/RS485 ports, enabling simultaneous multi-protocol communication.
- USB 2.0 Device Controller: Ensures high-speed data transfer and compatibility with modern USB interfaces.
- MOSCHIP MCS7840 Controller: Provides stable performance with integrated 512-byte FIFO per serial port for efficient data buffering.
- Full Electrical Isolation: RS422/RS485 ports are galvanically isolated to prevent ground loops and protect connected equipment.
- Auto Data Direction Control (RS485): Automatically manages data flow direction in half-duplex RS485 mode, simplifying network communication.
- Selectable Interface via DIP Switch: Each isolated port can be configured as RS422 or RS485, with optional termination resistor insertion.
- LED Indicators per Channel: Dedicated TX/RX activity LEDs for each port (A–D) and a power indicator for quick status monitoring.
- Bus-Powered Operation: Draws power directly from the USB bus (200 mA typical), eliminating the need for an external power supply.
- Compact Metal Enclosure: Durable and EMI-resistant housing suitable for industrial environments.
- Cross-Platform Driver Support: Compatible with Windows (Vista32/64, XP, WinCE, WHQL-certified), macOS, and Linux (kernel 2.6+).
- Fixed COM Port Assignment: Integrated EEPROM ensures consistent COM port numbering across USB ports and sessions.
- Flexible Redundancy and Monitoring: Ideal for redundant communication setups and real-time data monitoring in RS485 networks.
### 3. Technical Specifications
Physical Characteristics:
- Dimensions: 150 mm (L) × 84 mm (W) × 25 mm (H)
- Enclosure Material: Metal (EMI-shielded)
- Weight: Approx. 300 g (typical, including casing)
USB Interface:
- Connector Type: USB Type-B female
- Standard: USB 2.0 (Full-Speed/High-Speed compatible)
- Controller IC: MOSCHIP MCS7840
- FIFO Buffer: 512 bytes per serial port
- Power Source: USB bus-powered (5 V DC, 200 mA typical)
- Optional Power Input: 5 V DC via terminal block (OEM configuration)
RS232 Interface:
- Connector Type: DB9 male (x2, Ports A and B)
- Signal Ground: Common with USB power ground
- Pinout:
1. DCD, 2. RXD, 3. TXD, 4. DTR, 5. GND, 6. DSR, 7. RTS, 8. CTS, 9. RI
- Number of Ports: 2
- Isolation: Non-isolated (shared ground with USB)
RS422/RS485 Interface:
- Connector Type: 5-pin screw terminal block (x2, Ports C and D)
- Number of Ports: 2
- Isolation: Each port fully isolated from USB and RS232 ground
- Selectable Mode: RS422 (full-duplex) or RS485 (half-duplex, 2-wire or 4-wire)
- Signal Pins: TX+, TX−, RX+, RX−, Isolated GND
- Termination: 120 Ω resistor selectable via DIP switch
- Auto Direction Control: Supported in RS485 mode
- Configuration: DIP switch selectable for interface type and termination
Environmental Conditions:
- Operating Temperature: 0°C to 55°C
- Storage Temperature: 0°C to 65°C
- Operating Humidity: 0% to 95% RH (non-condensing)
- Storage Humidity: 5% to 95% RH (non-condensing)
### 4. Functionality
The UTS485 functions as a USB-to-multi-serial converter, bridging a USB host system to multiple serial communication standards. It enables a single USB port to manage up to four independent serial channels:
- Ports A & B: RS232 for local device connections (e.g., sensors, controllers, modems).
- Ports C & D: RS422/RS485 for long-distance or industrial network communication.
Each RS422/RS485 port can be configured via DIP switches for:
- RS422 full-duplex operation (4-wire)
- RS485 half-duplex operation (2-wire or 4-wire)
- Optional 120 Ω termination resistor insertion
Use Cases:
- Industrial automation and process control
- SCADA and PLC communication
- Data acquisition systems
- Serial device monitoring and redundancy setups
- Laboratory instrumentation
- Long-distance serial communication over twisted pair
Compatibility:
- Operating Systems: Windows (98SE, Me, 2000, XP, 2003, Vista, WinCE), macOS, Linux (kernel 2.6+)
- Driver Availability: WHQL-certified Windows drivers; source-based Linux drivers
- Device Enumeration: Appears as four COM ports (e.g., COM3–COM6) in Windows or /dev/ttyUSB0–3 in Linux
### 5. Components & Accessories
Included Items:
- UTS485 Converter Module
- U101 USB Cable: 6 ft USB Type-A to Type-B cable for host connection
- User Manual and Driver Package: Includes Windows and Linux drivers, installation guides, and troubleshooting documentation
Optional Accessories:
- External 5V Power Input (OEM): Via terminal block for custom integration
- Related Products:
- TWIN485: Dual isolated RS232-to-RS422/485 converter
- P422I PCI Card: Two isolated RS422/485 ports
- P485 PCI Card: Four isolated RS422/485 ports
### 6. Installation & Setup
Hardware Setup Procedure:
1. Configure DIP Switches:
- Set interface type (RS422 or RS485) for Ports C and D.
- Select termination resistor insertion if required.
2. Wire Terminal Blocks:
- Connect TX+/TX− and RX+/RX− lines according to the target interface.
3. Connect RS232 Devices:
- Attach devices to DB9 connectors (Ports A and B).
4. Connect USB Cable:
- Use the U101 cable to link the UTS485 to the PC’s USB port.
5. Power On:
- The PWR LED illuminates when USB power is active.
6. Install Drivers:
- Follow OS-specific installation steps (see below).
Driver Installation (Windows):
- Run MSSETUP.exe from the provided driver package.
- Alternatively, specify the driver directory during Plug & Play detection.
- Supported OS: Windows 98SE, Me, 2000, XP, 2003, Vista (32/64-bit), WinCE.
- After installation, four COM ports appear in Device Manager.
Driver Installation (Linux):
- Extract source files and compile using `make`.
- Load module with `make load` to create `/dev/ttyUSB0–3`.
- Use `make install` for automatic loading at boot.
- Supports kernel 2.6 and later.
COM Port Assignment:
- Each UTS485 unit includes an EEPROM with a unique serial number.
- Ensures consistent COM port numbering across USB ports and sessions.
### 7. Performance & Capabilities
- Data Throughput: High-speed USB 2.0 interface with efficient 512-byte FIFO per port ensures smooth data flow even under heavy load.
- Isolation: RS422/RS485 ports are galvanically isolated, protecting host and devices from voltage spikes and ground potential differences.
- Auto Direction Control: In RS485 mode, the converter automatically manages transmit/receive switching, eliminating manual RTS control.
- Reliability: Metal enclosure and isolated design enhance durability and signal integrity in noisy industrial environments.
- Power Efficiency: Operates entirely from USB power (200 mA typical), minimizing system complexity.
- LED Indicators: Real-time visual feedback for power and data activity on all ports.
- Limitations: RS232 ports share ground with USB; isolation applies only to RS422/RS485 ports.
### 8. Standards & Compliance
- USB Compliance: USB 2.0 Full-Speed/High-Speed compatible
- Driver Certification: Windows WHQL-certified drivers
- Electrical Isolation: Meets industrial isolation standards for RS422/RS485 interfaces
- Environmental Compliance: Designed for industrial temperature and humidity ranges
- Regulatory: Conforms to CE and FCC Class B emission standards (typical for Rayon products)
- Industry Standards Supported:
- EIA/TIA-232 (RS232)
- EIA/TIA-422 (RS422)
- EIA/TIA-485 (RS485)
### 9. Additional Information
Warranty:
- Duration: 1-year limited warranty
- Coverage: Defects in materials and workmanship
- Exclusions: Damage from misuse, unauthorized servicing, or electrical faults
- Repair Policy:
- In-warranty repairs: No charge
- Out-of-warranty repairs: Flat-rate service fee
- Handling/testing fee applies if returned units are found functional
Support & RMA Procedure:
- Contact Rayon Technology via email before returning products to verify issue cause.
- Provide model number, serial number, reason for return, and purchase order.
- Obtain RMA number and return instructions from Rayon Service Representative.
Maintenance:
- Periodically verify DIP switch settings and cable integrity.
- Ensure proper grounding and termination in RS485 networks.
- Use only the supplied or equivalent USB cable for reliable operation.
Software Updates:
- Updated drivers and documentation available at [www.moschip.com](http://www.moschip.com) and [www.rayontech.com](http://www.rayontech.com).
### Summary
The Rayon UTS485 USB 2.0 to 4-Port RS232/422/485 Isolated Converter is a versatile, industrial-grade communication interface designed for engineers and system integrators requiring robust serial connectivity. Its combination of dual RS232 and dual isolated RS422/RS485 ports in a single, compact, USB-powered module provides exceptional flexibility for mixed serial environments. With auto-direction control, per-port LED indicators, EEPROM-based COM port retention, and cross-platform driver support, the UTS485 delivers reliable, high-performance serial communication for automation, monitoring, and data acquisition applications.
-
UTS485_Catalog_01.pdf
PDF Catalog
-
UTS485_Owner's_Manual.pdf
Manual
- TB485 - DB9 Female to RS485 terminal screw block kit
