Comprehensive Product Summary – RAYON Technology ULOG310‑I USB Monitor Box

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### 1. Product Overview

Product Name: ULOG310‑I
Article Number: ULOG310‑I
Product Type: USB Monitored Interface Converter / USB Monitor Box
Series: ULOG Series (Intelligent Monitored Interface Converters)
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 / info@rayontech.com.tw
- Web: [www.rayontech.com.tw](http://www.rayontech.com.tw) / [www.rayontech.com](http://www.rayontech.com)

Product Description:
The ULOG310‑I is a USB‑based monitored interface converter designed to convert one universal RS232/RS422/RS485 input to a ground‑isolated RS232 output. It provides two monitored serial ports accessible via USB 2.0, allowing simultaneous data monitoring and conversion. The device is housed in a durable metal enclosure and is engineered for industrial, laboratory, and system integration environments where serial communication monitoring, isolation, and conversion are required.

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### 2. Key Features

- Universal Serial Interface Support:
Supports RS232, RS422, and RS485 input configurations selectable via DIP switch.

- Ground‑Isolated RS232 Output:
Provides galvanic isolation between input and output ports to eliminate ground loops and protect connected equipment.

- Dual Monitored Ports:
Two serial ports (Serial1 and Serial2) can be monitored simultaneously through a single USB connection.

- USB 2.0 Interface:
High‑speed USB 2.0 device controller ensures reliable data transfer between the converter and host PC.

- Integrated Monitoring Capability:
Enables real‑time observation of bidirectional serial communication for debugging, logging, and analysis.

- Auto Data Direction Control (ADDC):
Automatically manages data flow direction in RS485 mode, simplifying half‑duplex communication setup.

- LED Indicators:
Individual TX/RX activity LEDs for each serial channel plus a power indicator for quick status verification.

- Flexible Power Options:
Operates via USB bus power (default) or optional 5 V external adapter (UP110/UP220).

- Compact Metal Enclosure:
Ruggedized metal housing ensures electromagnetic shielding and mechanical durability.

- Software Integration:
Compatible with RAYON’s “RAYREAL” monitoring software for simultaneous dual‑port data visualization and analysis.

- Versatile Functionality:
Can function as an interface converter, repeater, or isolator depending on configuration.

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### 3. Technical Specifications

USB Interface:
- Connector Type: USB Type‑B
- Standard: USB 2.0 compliant
- Controller: MOSChip MCS7840
- FIFO Buffer: 512 bytes per serial port
- Power Consumption: 200–300 mA (typical)
- Power Modes: USB bus‑powered or 5 V self‑powered via external adapter

Serial Port 1 (Input):
- Connector: DB9 male
- Interface Type: Selectable RS232 / RS422 / RS485 (via DIP switch)
- Signal Ground: Common with USB power ground
- RS485 Mode: Supports Auto‑Data‑Direction‑Control (ADDC)
- Signal Pins: TX+, TX−, RX+, RX−, GND (isolated configuration)

Serial Port 2 (Output):
- Connector: DB9 male
- Interface Type: Ground‑isolated RS232
- Isolation: Electrical isolation between Serial2 and USB/Serial1 ground
- Signal Lines: TXD, RXD, RTS, CTS, DTR, DSR, DCD (fully isolated control signals)

LED Indicators:
- PWR: Power ON indicator
- Serial1 TX/RX: Data transmission and reception activity
- Serial2 TX/RX: Data transmission and reception activity

Power Input:
- USB Bus Power: 5 V DC (default)
- External Power: 5 V DC via UP110/UP220 adapter (optional)
- Current Draw: Approx. 300 mA

Physical Characteristics:
- Dimensions: 92 mm (W) × 118 mm (L) × 27 mm (H)
- Enclosure Material: Metal (EMI‑shielded)
- Weight: Approx. 250 g (typical)

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

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### 4. Functionality

Operating Principle:
The ULOG310‑I acts as a dual‑channel serial interface converter and monitor. When connected to a PC via USB, it enumerates as two virtual COM ports. Serial1 serves as the configurable input (RS232/RS422/RS485), while Serial2 provides a ground‑isolated RS232 output. The device transparently passes data between the two ports while simultaneously allowing the host PC to monitor both data streams in real time.

Use Cases and Applications:
- Industrial Automation: Monitoring PLC communication, SCADA systems, and fieldbus diagnostics.
- Embedded System Debugging: Capturing serial data between controllers and peripherals.
- Laboratory and Research: Logging sensor or instrument data for analysis.
- IT and Support: Troubleshooting serial communication issues in legacy systems.
- System Integration: Providing safe, isolated serial links between devices with differing ground potentials.
- Educational Use: Teaching serial communication principles and protocol analysis.

Compatibility:
- Compatible with Windows operating systems supporting USB virtual COM ports.
- Works with RAYON’s RAYREAL software for dual‑channel data visualization.
- Interoperable with standard RS232/RS422/RS485 devices, including PLCs, sensors, barcode readers, and POS terminals.

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### 5. Components & Accessories

Included Items:
- ULOG310‑I main unit (metal enclosure)
- U101 USB cable (6 ft, Type‑A to Type‑B)
- User documentation and driver CD (includes RAYREAL software source files)

Optional Accessories:
- UP110 or UP220 5 V DC power adapter (for self‑powered operation)
- Mounting brackets or DIN‑rail adapters (optional, depending on installation environment)

Connectors:
- USB Type‑B (host connection)
- DB9 male (Serial1 and Serial2)
- Plug‑in screw terminal block (for RS485 wiring, if applicable)

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### 6. Installation & Setup

System Requirements:
- PC with available USB 2.0 port
- Supported OS: Windows (with virtual COM port driver)
- Optional external 5 V DC power supply if self‑powered mode is desired

Installation Steps:
1. Connect the ULOG310‑I to the PC using the supplied USB cable.
2. Install the provided USB driver to create two virtual COM ports.
3. Configure Serial1 interface type (RS232/RS422/RS485) using the DIP switch.
4. Connect the target devices to Serial1 and Serial2 DB9 connectors.
5. Verify LED indicators for power and data activity.
6. Launch RAYREAL or compatible terminal software to monitor communication.

Mounting Options:
- Desktop placement (standard)
- Optional DIN‑rail or panel mounting for industrial environments

Configuration Notes:
- DIP switch settings determine interface type and signal routing.
- In RS485 mode, ADDC automatically manages transmit/receive direction.
- Ensure correct wiring for differential pairs (TX+/TX−, RX+/RX−) in RS422/RS485 modes.

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### 7. Performance & Capabilities

Data Handling:
- FIFO Buffer: 512 bytes per serial port ensures smooth data flow and minimizes latency.
- Full‑duplex operation for RS232/RS422; half‑duplex supported for RS485.
- Supports simultaneous monitoring of both transmit and receive data streams.

Speed and Throughput:
- USB 2.0 high‑speed interface supports up to 12 Mbps signaling rate.
- Serial communication rates up to 921.6 kbps (depending on configuration and host system).

Isolation and Protection:
- Electrical isolation between Serial2 and USB/Serial1 prevents ground loops.
- Protects connected devices from voltage differentials and noise interference.

Operational Modes:
- Interface Converter: RS232↔RS422/RS485 or RS232↔RS232 isolated conversion.
- Isolator: Full‑duplex RS232 isolator for signal and ground separation.
- Monitor: Dual‑channel data capture for protocol analysis.
- Repeater/Bridge: Extends communication distance or segments RS485 networks.

Limitations:
- Designed for asynchronous serial communication only.
- Not intended for high‑voltage or non‑standard signaling environments.
- USB cable length limited to 5 m per USB 2.0 specification.

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### 8. Standards & Compliance

Electrical and Interface Standards:
- USB 2.0 compliant
- RS232 (EIA/TIA‑232‑F)
- RS422 (EIA/TIA‑422‑B)
- RS485 (EIA/TIA‑485‑A)

Safety and Isolation:
- Ground isolation between Serial2 and USB/Serial1 circuits
- Designed to prevent ground loop interference in industrial environments

Environmental and Quality Standards:
- Manufactured under RAYON Technology’s quality management system
- Meets industrial operating temperature and humidity specifications

Regulatory Compliance:
- CE and FCC compliance (typical for RAYON industrial interface products)
- RoHS‑compliant materials and lead‑free soldering processes

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### 9. Additional Information

Warranty:
- Standard manufacturer warranty (typically one year; confirm with distributor)
- Covers defects in materials and workmanship under normal use

Technical Support:
- Direct engineering support available via email (info@rayontech.com.tw)
- Over 35 years of experience in serial communication and interface design

Maintenance:
- No user‑serviceable internal components
- Periodic inspection of connectors and cables recommended
- Keep device in dry, dust‑free environment for optimal performance

Software and Updates:
- RAYREAL utility software provided for monitoring and analysis
- Source code included for customization and integration into user applications
- Firmware updates available through RAYON Technology upon request

Related and Compatible Products:
- ULOG301‑I: USB to dual ground‑isolated RS232/422/485 converter
- APLOG301‑I / APLOG310‑I: PCI cards with monitored interface conversion
- iLOG101 / iLOG333: IP‑based monitored converters for remote applications
- TWIN485: Dual RS232‑to‑RS422/485 isolated converter
- UP422I / UP485I: PCI port cards supporting multiple isolated RS422/485 channels

Typical Applications:
- Monitoring serial communication between PLCs and HMIs
- Logging data from sensors, barcode readers, or POS terminals
- Debugging embedded systems and industrial controllers
- Providing safe, isolated serial links in electrically noisy environments

Advantages:
- Combines converter and monitor functions in one compact unit
- Reduces need for multiple interface converters or isolators
- Enhances system reliability by preventing ground‑related faults
- Simplifies troubleshooting through real‑time data observation

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### Summary

The RAYON ULOG310‑I USB Monitor Box is a professional‑grade, dual‑port serial interface converter and monitor designed for engineers, developers, and system integrators who require reliable, isolated, and observable serial communication. By supporting RS232, RS422, and RS485 standards with full ground isolation on the output side, it ensures safe operation in industrial and laboratory environments. Its USB 2.0 interface provides plug‑and‑play connectivity, while integrated LED indicators and RAYREAL software facilitate intuitive monitoring and diagnostics.

With its robust metal construction, flexible power options, and comprehensive interface support, the ULOG310‑I serves as a versatile tool for serial communication analysis, protocol debugging, and interface conversion. It is part of RAYON Technology’s extensive line of monitored interface solutions, offering a cost‑effective and technically advanced approach to serial data management and system reliability improvement.