USB Serial Converter ULI-321DC
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![ULI-321DC-2--20240126174625[1].jpg](https://image.mono.ipros.com/public/product/image_sub/1d5/2001560789/IPROS3618080141399747947.jpg?w=280&h=280)
USB 2.0 to RS-232 Converter, DB9 Male, Isolated
ULI-321DC is an industrial USB-to-serial converter that adds an RS-232 port to a PC's USB port. It supports USB 2.0 full speed (12Mbps) and RS-232 communication at speeds up to 460.8kbps. With 2kV optical isolation, it protects equipment from voltage surges and ground loops, ensuring reliable communication. Powered through the USB port, it requires no external power supply and features a robust housing compliant with IP30, making it ideal for control panels and field installations. It supports connections with serial communication devices such as Modbus RTU and can be easily set up on Windows 7/8/10/11 and Linux (Ubuntu). It comes with a USB cable for immediate use and is a highly reliable model suitable for industrial applications and testing equipment.
basic information
- Interface: RS-232 (DB9 male) - Data rate: Up to 460.8kbps - USB specification: USB 2.0 full speed (12Mbps), Type B high retention connector - Power supply method: Powered by USB port (5VDC), power consumption <0.5W - Isolation protection: 2kV optical isolation - ESD protection: 4kV contact, 8kV air - Driver support: Windows 7/8/10/11, Linux (Ubuntu) - Operating temperature: 0–70°C, humidity 95% (non-condensing) - Housing/Mounting: IP30 plastic housing, inline installation - Size/Weight: 76.2×42.7×20.1mm, approximately 180g - Accessories: USB cable (0.9m) - Certification: CE, FCC, RoHS
Price information
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Model number/Brand name
ULI-321DC
Applications/Examples of results
- Safe connection of industrial PCs and RS-232 devices (PLC, measuring instruments) - Data collection via USB connection for Modbus RTU compatible devices - Sites requiring voltage surge and ground loop countermeasures - USB to RS-232 conversion for testing equipment and lab devices - Isolated serial connection within control panels
Line up（1）
| Model number | overview |
|---|---|
| ULI-321DC（BB-USO9ML2-A） | USB Type B ⇔ RS-232 (DB9), 460.8kbps compatible, 2kV isolation model |
catalog（2）
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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.