TB485
SUCHEN SIE DIE PASSENDE
INDUSTRIELLE LÖSUNG?
Entdecken Sie Embedded-, Kommunikations- und Automatisierungslösungen für Ihre Anwendung.
UTS134
USB 2.0 to 4*RS485/422 Converter
66,00 EUR
inkl. Umsatzsteuer 78,54 EUR
- Four Independent Serial Ports:
Supports four RS422/RS485 communication channels in a single compact module, labeled as ports A, B, C, and D.
- USB 2.0 Interface:
Compliant with USB 2.0 full-speed specifications, ensuring high data throughput and backward compatibility with USB 1.1 hosts.
- MOSCHIP MCS7840 Controller:
Utilizes a reliable and widely supported USB-to-serial bridge chip, providing stable performance and compatibility with major operating systems.
- 512-Byte FIFO Buffer per Port:
Each serial channel includes a 512-byte transmit/receive FIFO buffer, minimizing data loss and ensuring smooth communication under high-load conditions.
- Selectable RS422/RS485 Mode:
Each port can be configured individually for RS422 or RS485 operation via DIP switch settings, offering flexibility for diverse communication environments.
- Auto Data Direction Control (RS485 Mode):
Automatically manages data flow direction in RS485 mode, simplifying configuration and improving communication reliability.
- LED Indicators per Channel:
Dedicated LEDs display transmit/receive activity for each port (ATRD, BTRD, CTRD, DTRD) and a power indicator (PWR), providing clear visual status feedback.
- Bus-Powered Operation:
Draws power directly from the USB bus (5VDC, 400mA), eliminating the need for an external power adapter.
- Compact Metal Enclosure:
Rugged metal housing (90 × 150 × 27 mm) ensures durability, electromagnetic shielding, and heat dissipation suitable for industrial environments.
- Plug-and-Play Installation:
Supports hot-plugging and automatic detection by the host system, simplifying deployment and maintenance.
- iSerial Feature Support (via EEPROM):
When equipped with EEPROM and a unique serial number, the MCS7840 controller supports iSerial functionality, maintaining consistent COM port assignments across USB ports.
Supports four RS422/RS485 communication channels in a single compact module, labeled as ports A, B, C, and D.
- USB 2.0 Interface:
Compliant with USB 2.0 full-speed specifications, ensuring high data throughput and backward compatibility with USB 1.1 hosts.
- MOSCHIP MCS7840 Controller:
Utilizes a reliable and widely supported USB-to-serial bridge chip, providing stable performance and compatibility with major operating systems.
- 512-Byte FIFO Buffer per Port:
Each serial channel includes a 512-byte transmit/receive FIFO buffer, minimizing data loss and ensuring smooth communication under high-load conditions.
- Selectable RS422/RS485 Mode:
Each port can be configured individually for RS422 or RS485 operation via DIP switch settings, offering flexibility for diverse communication environments.
- Auto Data Direction Control (RS485 Mode):
Automatically manages data flow direction in RS485 mode, simplifying configuration and improving communication reliability.
- LED Indicators per Channel:
Dedicated LEDs display transmit/receive activity for each port (ATRD, BTRD, CTRD, DTRD) and a power indicator (PWR), providing clear visual status feedback.
- Bus-Powered Operation:
Draws power directly from the USB bus (5VDC, 400mA), eliminating the need for an external power adapter.
- Compact Metal Enclosure:
Rugged metal housing (90 × 150 × 27 mm) ensures durability, electromagnetic shielding, and heat dissipation suitable for industrial environments.
- Plug-and-Play Installation:
Supports hot-plugging and automatic detection by the host system, simplifying deployment and maintenance.
- iSerial Feature Support (via EEPROM):
When equipped with EEPROM and a unique serial number, the MCS7840 controller supports iSerial functionality, maintaining consistent COM port assignments across USB ports.
Comprehensive Product Summary – UTS134 USB 2.0 to 4-Port RS485/RS422 Converter
### 1. Product Overview
Product Name: UTS134 USB to Serial Port Converter
Model Number: UTS134
Series: UTS Series – Flexible RS422/RS485 Settable Models
Article Number: UTS134
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)
Product Description:
The Rayon UTS134 is a high-performance USB 2.0 to 4-port RS485/RS422 converter designed for industrial, commercial, and automation applications requiring multiple serial communication channels through a single USB interface. It integrates four independent RS422/RS485 ports within a compact, durable metal enclosure, providing a reliable and flexible solution for serial data communication, monitoring, and backup operations.
The UTS134 employs the MOSCHIP MCS7840 USB-to-serial controller, offering robust data handling with 512-byte FIFO buffers per port, automatic data direction control in RS485 mode, and LED indicators for real-time communication status. The device is bus-powered via USB, eliminating the need for an external power supply.
### 2. Key Features
- Four Independent Serial Ports:
Supports four RS422/RS485 communication channels in a single compact module, labeled as ports A, B, C, and D.
- USB 2.0 Interface:
Compliant with USB 2.0 full-speed specifications, ensuring high data throughput and backward compatibility with USB 1.1 hosts.
- MOSCHIP MCS7840 Controller:
Utilizes a reliable and widely supported USB-to-serial bridge chip, providing stable performance and compatibility with major operating systems.
- 512-Byte FIFO Buffer per Port:
Each serial channel includes a 512-byte transmit/receive FIFO buffer, minimizing data loss and ensuring smooth communication under high-load conditions.
- Selectable RS422/RS485 Mode:
Each port can be configured individually for RS422 or RS485 operation via DIP switch settings, offering flexibility for diverse communication environments.
- Auto Data Direction Control (RS485 Mode):
Automatically manages data flow direction in RS485 mode, simplifying configuration and improving communication reliability.
- LED Indicators per Channel:
Dedicated LEDs display transmit/receive activity for each port (ATRD, BTRD, CTRD, DTRD) and a power indicator (PWR), providing clear visual status feedback.
- Bus-Powered Operation:
Draws power directly from the USB bus (5VDC, 400mA), eliminating the need for an external power adapter.
- Compact Metal Enclosure:
Rugged metal housing (90 × 150 × 27 mm) ensures durability, electromagnetic shielding, and heat dissipation suitable for industrial environments.
- Plug-and-Play Installation:
Supports hot-plugging and automatic detection by the host system, simplifying deployment and maintenance.
- iSerial Feature Support (via EEPROM):
When equipped with EEPROM and a unique serial number, the MCS7840 controller supports iSerial functionality, maintaining consistent COM port assignments across USB ports.
### 3. Technical Specifications
USB Interface:
- Connector Type: USB Type-B female
- Standard: USB 2.0 (Full-Speed, 12 Mbps)
- Controller: MOSCHIP MCS7840
- FIFO Buffer: 512 bytes per serial port
- Power Source: USB bus-powered (5VDC ±5%)
- Current Consumption: 400 mA (typical)
RS422/RS485 Interface:
- Connector Type: DB9 male (per port)
- Number of Ports: 4 (A, B, C, D)
- Signal Pins: TX+, TX−, RX+, RX−, GND
- Interface Selection: Configurable via DIP switch (RS422 or RS485)
- Auto Data Direction Control: Supported in RS485 mode
- Signal Pairing: Data+ and Data− can be assigned to TX+/TX− or RX+/RX− pairs depending on configuration
Indicators:
- PWR: Power ON indicator
- ATRD, BTRD, CTRD, DTRD: TX/RX activity indicators for ports A–D
Physical Characteristics:
- Enclosure Material: Metal
- Dimensions: 90 mm (W) × 150 mm (L) × 27 mm (H)
- Weight: Approx. 300–400 g (typical, including enclosure and connectors)
- Color: Metallic silver or gray finish (typical Rayon industrial design)
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
Operational Overview:
The UTS134 functions as a USB-to-multi-serial converter, enabling a host computer to communicate with up to four RS422 or RS485 devices simultaneously. Upon connection to a USB port, the device enumerates as four virtual COM ports, each corresponding to one of the serial channels.
RS422 Mode:
Provides full-duplex differential signaling suitable for long-distance, high-speed communication between a host and remote devices such as PLCs, sensors, or industrial controllers.
RS485 Mode:
Supports half-duplex, multi-drop communication networks, allowing multiple devices to share a single communication bus. The Auto Data Direction Control feature automatically manages the transmit/receive switching, simplifying network setup.
Use Cases and Applications:
- Industrial automation and process control
- Building management systems (BMS)
- SCADA and data acquisition systems
- Serial device networking and monitoring
- POS systems and barcode reader integration
- Communication with PLCs, motor drives, and sensors
- Redundant serial communication setups for backup or monitoring
Compatibility:
- Compatible with Windows, Linux, and other major operating systems supporting USB CDC or virtual COM port drivers.
- Backward compatible with USB 1.1 hosts.
- Works with standard RS422/RS485 devices and terminal blocks.
### 5. Components & Accessories
Included Items:
- UTS134 Converter Unit (main module)
- U101 USB Cable: 6-foot USB Type-A to Type-B cable for host connection
- User Documentation: Quick installation guide or datasheet (varies by shipment)
Optional Accessories:
- TB485 Terminal Block Kit: DB9 female to RS485 terminal block adapter for easy wiring and field installation.
- Mounting Hardware: Optional brackets or screws for panel or DIN-rail mounting (availability may vary).
Related Models and Upgrade Options:
- UTS134i: Ground-isolated version of UTS134 for enhanced electrical safety.
- UTS400: USB to four RS232 ports (cost-effective model).
- UTS040: USB to four isolated RS232 ports (safety model).
- UTS485: USB to two RS232 and two isolated RS422/RS485 ports (hybrid model).
### 6. Installation & Setup
System Requirements:
- Available USB 2.0 or 1.1 port on host computer
- Supported operating system with USB serial driver support
- No external power supply required (bus-powered)
Installation Steps:
1. Connect the UTS134 to the host computer using the provided USB cable.
2. Allow the operating system to detect and install the appropriate drivers (may require Rayon or MOSCHIP driver package).
3. Configure each port’s communication parameters (baud rate, parity, stop bits, etc.) via the operating system’s device manager or application software.
4. Set the desired interface mode (RS422 or RS485) for each port using the DIP switches located on the device.
5. Connect external devices to the DB9 connectors using appropriate cables or terminal adapters.
6. Verify operation using the LED indicators for power and data activity.
Mounting Options:
- Desktop placement
- Wall or panel mounting using optional brackets
- DIN-rail mounting (with optional adapter)
Configuration Notes:
- Ensure correct DIP switch settings before connecting devices.
- For RS485 networks, proper termination and biasing resistors should be applied externally if required.
- The Auto Data Direction Control feature simplifies RS485 bus management by automatically toggling between transmit and receive modes.
### 7. Performance & Capabilities
Data Throughput:
- USB 2.0 full-speed (12 Mbps) interface ensures efficient data transfer between host and serial devices.
- Each serial port supports high-speed communication rates (typically up to 921.6 kbps, depending on driver and system configuration).
Buffering and Flow Control:
- 512-byte FIFO per port minimizes data loss during high-speed or burst transmissions.
- Hardware and software flow control supported via driver configuration.
Power Efficiency:
- Operates entirely from USB bus power (5VDC, 400mA total consumption).
- No external power adapter required, reducing installation complexity.
Reliability and Stability:
- Metal enclosure provides EMI shielding and mechanical protection.
- LED indicators allow quick diagnostics of communication status.
- MOSCHIP MCS7840 ensures stable USB-to-serial conversion with minimal latency.
Limitations:
- Non-isolated model (for isolation, use UTS134i).
- Limited to four ports per module; additional modules can be used for expansion.
- Requires driver installation for some operating systems.
### 8. Standards & Compliance
Electrical and Interface Standards:
- USB 2.0 (Full-Speed) compliant
- RS422 and RS485 (TIA/EIA-422-B and TIA/EIA-485-A standards) compliant
- Supports differential signaling for noise immunity and long-distance communication
Environmental and Safety Compliance:
- Designed for industrial operating temperature range (0°C to 55°C)
- RoHS-compliant materials (lead-free construction)
- CE and FCC compliance (typical for Rayon industrial communication products)
Industry Standards Supported:
- Compatible with Modbus RTU, Profibus, and other serial communication protocols over RS485/RS422
- Supports standard COM port emulation for legacy software compatibility
### 9. Additional Information
Warranty:
- Standard manufacturer warranty (typically 1 year, depending on region and distributor policy) covering defects in materials and workmanship.
Technical Support:
- Provided by Rayon Technology Co., Ltd. via email and phone.
- Driver downloads, firmware updates, and documentation available on the official website.
Maintenance:
- No periodic maintenance required.
- Keep connectors clean and free from dust.
- Avoid exposure to excessive moisture or vibration.
Firmware and Driver Updates:
- Rayon and MOSCHIP periodically release updated drivers for improved OS compatibility and performance.
- iSerial feature can be enabled via EEPROM programming for consistent COM port assignment across USB ports.
Product Lifecycle and Compatibility:
- UTS134 is part of Rayon’s long-term supported UTS series, ensuring availability of compatible models and accessories.
- Backward compatible with earlier USB-to-serial devices using MCS7820/MCS7840 chipsets.
### Summary Table
| Parameter | Specification |
|----------------|-------------------|
| Model | UTS134 |
| Manufacturer | Rayon Technology Co., Ltd. |
| Interface Type | USB 2.0 to RS422/RS485 |
| Number of Ports | 4 (independent) |
| Controller Chip | MOSCHIP MCS7840 |
| FIFO Buffer | 512 bytes per port |
| Connector (USB) | Type-B female |
| Connector (Serial) | DB9 male |
| Power Supply | USB bus-powered (5VDC, 400mA) |
| Dimensions | 90 × 150 × 27 mm |
| Material | Metal enclosure |
| Operating Temp. | 0°C to 55°C |
| Storage Temp. | 0°C to 65°C |
| Humidity (Operating) | 10–95% RH |
| LED Indicators | PWR, ATRD, BTRD, CTRD, DTRD |
| Interface Selection | DIP switch (RS422/RS485) |
| Auto Direction Control | Supported (RS485 mode) |
| Included Cable | U101 USB A–B (6 ft) |
| Optional Accessory | TB485 terminal block adapter |
| Compliance | USB 2.0, RS422/RS485, RoHS, CE/FCC |
| Warranty | 1 year (typical) |
### Conclusion
The Rayon UTS134 USB 2.0 to 4-Port RS485/RS422 Converter is a robust, flexible, and cost-effective solution for expanding serial communication capabilities via USB. Its combination of four configurable ports, automatic data direction control, and industrial-grade metal housing makes it ideal for automation, monitoring, and control applications. With the proven MOSCHIP MCS7840 controller, 512-byte FIFO buffering, and LED diagnostics, the UTS134 delivers reliable performance and simplified integration for engineers and system integrators seeking dependable multi-port serial connectivity.
### 1. Product Overview
Product Name: UTS134 USB to Serial Port Converter
Model Number: UTS134
Series: UTS Series – Flexible RS422/RS485 Settable Models
Article Number: UTS134
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)
Product Description:
The Rayon UTS134 is a high-performance USB 2.0 to 4-port RS485/RS422 converter designed for industrial, commercial, and automation applications requiring multiple serial communication channels through a single USB interface. It integrates four independent RS422/RS485 ports within a compact, durable metal enclosure, providing a reliable and flexible solution for serial data communication, monitoring, and backup operations.
The UTS134 employs the MOSCHIP MCS7840 USB-to-serial controller, offering robust data handling with 512-byte FIFO buffers per port, automatic data direction control in RS485 mode, and LED indicators for real-time communication status. The device is bus-powered via USB, eliminating the need for an external power supply.
### 2. Key Features
- Four Independent Serial Ports:
Supports four RS422/RS485 communication channels in a single compact module, labeled as ports A, B, C, and D.
- USB 2.0 Interface:
Compliant with USB 2.0 full-speed specifications, ensuring high data throughput and backward compatibility with USB 1.1 hosts.
- MOSCHIP MCS7840 Controller:
Utilizes a reliable and widely supported USB-to-serial bridge chip, providing stable performance and compatibility with major operating systems.
- 512-Byte FIFO Buffer per Port:
Each serial channel includes a 512-byte transmit/receive FIFO buffer, minimizing data loss and ensuring smooth communication under high-load conditions.
- Selectable RS422/RS485 Mode:
Each port can be configured individually for RS422 or RS485 operation via DIP switch settings, offering flexibility for diverse communication environments.
- Auto Data Direction Control (RS485 Mode):
Automatically manages data flow direction in RS485 mode, simplifying configuration and improving communication reliability.
- LED Indicators per Channel:
Dedicated LEDs display transmit/receive activity for each port (ATRD, BTRD, CTRD, DTRD) and a power indicator (PWR), providing clear visual status feedback.
- Bus-Powered Operation:
Draws power directly from the USB bus (5VDC, 400mA), eliminating the need for an external power adapter.
- Compact Metal Enclosure:
Rugged metal housing (90 × 150 × 27 mm) ensures durability, electromagnetic shielding, and heat dissipation suitable for industrial environments.
- Plug-and-Play Installation:
Supports hot-plugging and automatic detection by the host system, simplifying deployment and maintenance.
- iSerial Feature Support (via EEPROM):
When equipped with EEPROM and a unique serial number, the MCS7840 controller supports iSerial functionality, maintaining consistent COM port assignments across USB ports.
### 3. Technical Specifications
USB Interface:
- Connector Type: USB Type-B female
- Standard: USB 2.0 (Full-Speed, 12 Mbps)
- Controller: MOSCHIP MCS7840
- FIFO Buffer: 512 bytes per serial port
- Power Source: USB bus-powered (5VDC ±5%)
- Current Consumption: 400 mA (typical)
RS422/RS485 Interface:
- Connector Type: DB9 male (per port)
- Number of Ports: 4 (A, B, C, D)
- Signal Pins: TX+, TX−, RX+, RX−, GND
- Interface Selection: Configurable via DIP switch (RS422 or RS485)
- Auto Data Direction Control: Supported in RS485 mode
- Signal Pairing: Data+ and Data− can be assigned to TX+/TX− or RX+/RX− pairs depending on configuration
Indicators:
- PWR: Power ON indicator
- ATRD, BTRD, CTRD, DTRD: TX/RX activity indicators for ports A–D
Physical Characteristics:
- Enclosure Material: Metal
- Dimensions: 90 mm (W) × 150 mm (L) × 27 mm (H)
- Weight: Approx. 300–400 g (typical, including enclosure and connectors)
- Color: Metallic silver or gray finish (typical Rayon industrial design)
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
Operational Overview:
The UTS134 functions as a USB-to-multi-serial converter, enabling a host computer to communicate with up to four RS422 or RS485 devices simultaneously. Upon connection to a USB port, the device enumerates as four virtual COM ports, each corresponding to one of the serial channels.
RS422 Mode:
Provides full-duplex differential signaling suitable for long-distance, high-speed communication between a host and remote devices such as PLCs, sensors, or industrial controllers.
RS485 Mode:
Supports half-duplex, multi-drop communication networks, allowing multiple devices to share a single communication bus. The Auto Data Direction Control feature automatically manages the transmit/receive switching, simplifying network setup.
Use Cases and Applications:
- Industrial automation and process control
- Building management systems (BMS)
- SCADA and data acquisition systems
- Serial device networking and monitoring
- POS systems and barcode reader integration
- Communication with PLCs, motor drives, and sensors
- Redundant serial communication setups for backup or monitoring
Compatibility:
- Compatible with Windows, Linux, and other major operating systems supporting USB CDC or virtual COM port drivers.
- Backward compatible with USB 1.1 hosts.
- Works with standard RS422/RS485 devices and terminal blocks.
### 5. Components & Accessories
Included Items:
- UTS134 Converter Unit (main module)
- U101 USB Cable: 6-foot USB Type-A to Type-B cable for host connection
- User Documentation: Quick installation guide or datasheet (varies by shipment)
Optional Accessories:
- TB485 Terminal Block Kit: DB9 female to RS485 terminal block adapter for easy wiring and field installation.
- Mounting Hardware: Optional brackets or screws for panel or DIN-rail mounting (availability may vary).
Related Models and Upgrade Options:
- UTS134i: Ground-isolated version of UTS134 for enhanced electrical safety.
- UTS400: USB to four RS232 ports (cost-effective model).
- UTS040: USB to four isolated RS232 ports (safety model).
- UTS485: USB to two RS232 and two isolated RS422/RS485 ports (hybrid model).
### 6. Installation & Setup
System Requirements:
- Available USB 2.0 or 1.1 port on host computer
- Supported operating system with USB serial driver support
- No external power supply required (bus-powered)
Installation Steps:
1. Connect the UTS134 to the host computer using the provided USB cable.
2. Allow the operating system to detect and install the appropriate drivers (may require Rayon or MOSCHIP driver package).
3. Configure each port’s communication parameters (baud rate, parity, stop bits, etc.) via the operating system’s device manager or application software.
4. Set the desired interface mode (RS422 or RS485) for each port using the DIP switches located on the device.
5. Connect external devices to the DB9 connectors using appropriate cables or terminal adapters.
6. Verify operation using the LED indicators for power and data activity.
Mounting Options:
- Desktop placement
- Wall or panel mounting using optional brackets
- DIN-rail mounting (with optional adapter)
Configuration Notes:
- Ensure correct DIP switch settings before connecting devices.
- For RS485 networks, proper termination and biasing resistors should be applied externally if required.
- The Auto Data Direction Control feature simplifies RS485 bus management by automatically toggling between transmit and receive modes.
### 7. Performance & Capabilities
Data Throughput:
- USB 2.0 full-speed (12 Mbps) interface ensures efficient data transfer between host and serial devices.
- Each serial port supports high-speed communication rates (typically up to 921.6 kbps, depending on driver and system configuration).
Buffering and Flow Control:
- 512-byte FIFO per port minimizes data loss during high-speed or burst transmissions.
- Hardware and software flow control supported via driver configuration.
Power Efficiency:
- Operates entirely from USB bus power (5VDC, 400mA total consumption).
- No external power adapter required, reducing installation complexity.
Reliability and Stability:
- Metal enclosure provides EMI shielding and mechanical protection.
- LED indicators allow quick diagnostics of communication status.
- MOSCHIP MCS7840 ensures stable USB-to-serial conversion with minimal latency.
Limitations:
- Non-isolated model (for isolation, use UTS134i).
- Limited to four ports per module; additional modules can be used for expansion.
- Requires driver installation for some operating systems.
### 8. Standards & Compliance
Electrical and Interface Standards:
- USB 2.0 (Full-Speed) compliant
- RS422 and RS485 (TIA/EIA-422-B and TIA/EIA-485-A standards) compliant
- Supports differential signaling for noise immunity and long-distance communication
Environmental and Safety Compliance:
- Designed for industrial operating temperature range (0°C to 55°C)
- RoHS-compliant materials (lead-free construction)
- CE and FCC compliance (typical for Rayon industrial communication products)
Industry Standards Supported:
- Compatible with Modbus RTU, Profibus, and other serial communication protocols over RS485/RS422
- Supports standard COM port emulation for legacy software compatibility
### 9. Additional Information
Warranty:
- Standard manufacturer warranty (typically 1 year, depending on region and distributor policy) covering defects in materials and workmanship.
Technical Support:
- Provided by Rayon Technology Co., Ltd. via email and phone.
- Driver downloads, firmware updates, and documentation available on the official website.
Maintenance:
- No periodic maintenance required.
- Keep connectors clean and free from dust.
- Avoid exposure to excessive moisture or vibration.
Firmware and Driver Updates:
- Rayon and MOSCHIP periodically release updated drivers for improved OS compatibility and performance.
- iSerial feature can be enabled via EEPROM programming for consistent COM port assignment across USB ports.
Product Lifecycle and Compatibility:
- UTS134 is part of Rayon’s long-term supported UTS series, ensuring availability of compatible models and accessories.
- Backward compatible with earlier USB-to-serial devices using MCS7820/MCS7840 chipsets.
### Summary Table
| Parameter | Specification |
|----------------|-------------------|
| Model | UTS134 |
| Manufacturer | Rayon Technology Co., Ltd. |
| Interface Type | USB 2.0 to RS422/RS485 |
| Number of Ports | 4 (independent) |
| Controller Chip | MOSCHIP MCS7840 |
| FIFO Buffer | 512 bytes per port |
| Connector (USB) | Type-B female |
| Connector (Serial) | DB9 male |
| Power Supply | USB bus-powered (5VDC, 400mA) |
| Dimensions | 90 × 150 × 27 mm |
| Material | Metal enclosure |
| Operating Temp. | 0°C to 55°C |
| Storage Temp. | 0°C to 65°C |
| Humidity (Operating) | 10–95% RH |
| LED Indicators | PWR, ATRD, BTRD, CTRD, DTRD |
| Interface Selection | DIP switch (RS422/RS485) |
| Auto Direction Control | Supported (RS485 mode) |
| Included Cable | U101 USB A–B (6 ft) |
| Optional Accessory | TB485 terminal block adapter |
| Compliance | USB 2.0, RS422/RS485, RoHS, CE/FCC |
| Warranty | 1 year (typical) |
### Conclusion
The Rayon UTS134 USB 2.0 to 4-Port RS485/RS422 Converter is a robust, flexible, and cost-effective solution for expanding serial communication capabilities via USB. Its combination of four configurable ports, automatic data direction control, and industrial-grade metal housing makes it ideal for automation, monitoring, and control applications. With the proven MOSCHIP MCS7840 controller, 512-byte FIFO buffering, and LED diagnostics, the UTS134 delivers reliable performance and simplified integration for engineers and system integrators seeking dependable multi-port serial connectivity.
-
UTS134_Catalog_en.pdf
PDF Catalog
-
AP_Note_iSerial.pdf
Manual
- TB485 - DB9 Female to RS485 terminal screw block kit
