USB to RS-232 connection! Industrial converter compatible with fixed serial numbers.
ULI-321DK 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 enables high-speed data transfer of up to 921.6kbps for RS-232 communication. With a fixed serial number, the COM port number remains unchanged even when shared among multiple PCs, simplifying setup tasks in the field. Powered via the USB port, it requires no external power supply and features a compact inline design, making it ideal for control panels and field services. It can be easily set up on Windows 7/8/10/11 and Linux (Ubuntu).
![ULI-321DCK-1--20240126174818[1].jpg](https://image.mono.ipros.com/public/product/image/245492/IPROS7628266714419244552.jpg?w=280&h=280)
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basic information
- Supported interface: RS-232 (DB9 male) - Data rate: Up to 921.6kbps - USB specification: USB 2.0 full speed (12Mbps), Type B high retention connector - Power supply method: Powered via USB port (5VDC), power consumption <0.5W - Isolation protection: None (for isolation needs, use ULI-321DC model) - Fixed serial number: Supported - Driver support: Windows 7/8/10/11, Linux (Ubuntu) - Operating temperature: 0–70°C - 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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Delivery Time
※The delivery time may vary depending on the quantity, so please feel free to contact us.
Applications/Examples of results
【Usage】 ■ Communication with industrial devices such as PLCs and sensors ■ Establishment of highly reliable communication ■ Centralized management through multiple ports ■ Support for high-speed communication ■ Robust design suitable for industrial applications ■ Enhanced safety with the insulated model (K specification) *For more details, please download the PDF (English version) or feel free to contact us.
Line up（1）
| Model number | overview |
|---|---|
| ULI-321DK（BB-232USB9M-LS） | USB Type B ⇔ RS-232 (DB9), supports 921.6kbps, fixed serial number model |
catalog（2）
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![[Case Studies Included] Serial/USB Communication Devices Product Guide](https://image.mono.ipros.com/public/catalog/image/245492/IPROS12540462012250341345.jpeg?w=120&h=170)
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.
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