USB⇔RS-485 Converter (Terminal Block): ULI-351/361
ULI-351T / ULI-351TK / ULI-361T / ULI-361TK
High-maintenance USB & terminal block wiring! Supports 921.6kbps, fixed serial number model also available for selection.
The ULI-351/361 (terminal block) is an industrial USB to RS-485 converter that allows you to add an RS-485 port to a USB port. It supports USB 2.0 (12Mbps) and serial communication at a maximum of 921.6kbps. It features a high-retention USB Type B connector, which helps prevent cable disconnection in environments with vibrations. Designed for terminal block connections, it is suitable for control panels and field wiring, and it is easy to install inline. The ULI-351 series supports 4-wire RS-485, while the ULI-361 series supports 2-wire RS-485. Additionally, the ULI-351TK and ULI-361TK models come with fixed serial numbers, allowing multiple PCs to share the same model number while maintaining consistent COM port numbers. It is powered by USB bus power, eliminating the need for an external power supply, and comes with a 0.9m USB cable.
![ULI-351T_02----20231107165247[1].jpg](https://image.mono.ipros.com/public/product/image/245492/IPROS17018590132241393085.jpg?w=280&h=280)
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basic information
- Conversion: USB⇔RS-485 (ULI-351 series: 4-wire, ULI-361 series: 2-wire) - Serial data rate: Up to 921.6kbps - USB specification: USB 2.0 (12Mbps), Type B high retention connector (T/TK model) - Power supply method: Powered by USB port (5VDC, low power consumption <100mA) - Serial connection: Terminal block (ULI-351T / ULI-351TK / ULI-361T / ULI-361TK) - Fixed serial number: Supported by ULI-351TK model / ULI-361TK model - Driver: FTDI/Asix series VCP (Windows 98/ME/2000/XP/Vista/7/8/8.1/10/11, Linux Ubuntu 11.10) - Installation: Inline installation, USB cable (0.9m) included - Housing: Plastic - Operating temperature: 0 to 70℃ - Dimensions: 65 × 32 × 16 mm
Price information
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Delivery Time
※The delivery date may vary depending on the quantity, so please feel free to contact us.
Applications/Examples of results
- RS-485 connection via terminal block wiring inside the control panel (ULI-351T / ULI-351TK / ULI-361T / ULI-361TK) - Connection between industrial PC and RS-485 devices (PLC, measuring instruments) (all models) - Quick setup in field service and mobile environments (high-retention USB + inline installation) - Shared operation across multiple PCs (ULI-351TK model / ULI-361TK model: unified COM port with fixed serial number) - Application to 4-wire network (ULI-351 series) / 2-wire network (ULI-361 series)
Line up（4）
| Model number | overview |
|---|---|
| ULI-351T（BB-485USBTB-4W-A） | USB Type B (high retention) ⇔ RS-485 terminal block, 4-wire type, standard model with unique serial number. |
| ULI-351TK（BB-485USBTB4WLS-A） | USB Type B (high retention) ⇔ RS-485 terminal block, 4-wire, fixed serial number compatible model (same model number for unified COM port) |
| ULI-361T（BB-485USBTB-2W-A） | USB Type B (high retention) ⇔ RS-485 terminal block, 2-wire type, standard model with unique serial number |
| ULI-361TK（BB-485USBTB2WLS-A） | USB Type B (high retention) ⇔ RS-485 terminal block, 2-wire, fixed serial number compatible model (COM port unified with the same model number) |
catalog（3）
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Company information
In 1983, Advantech (Advantech Co., Ltd.) was founded in Taiwan. For over 40 years, we have been developing high-quality and high-performance computers for industrial applications. As of 2024, we offer a lineup of over 3,000 various IoT devices. As the world's No. 1 manufacturer in the industrial computer market, with a presence in 95 cities across 26 countries, we aim to cultivate a prosperous future by solving social issues through AI × IoT platform services. *Source: OMDIA - No. 1 in global market share for industrial PCs, 42.5% (2023 edition)* In Japan, we established Advantech Co., Ltd. in 1997. In 2018, we formed a capital and business alliance with Omron Nogata Co., Ltd. to further expand sales and to quickly respond to market demands by offering design to production (DMS/ODM) services. By merging Taiwan's speed with the technological expertise we have cultivated over the years, we will establish a brand that meets the needs of our partners.