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RS-422 Converter ULI-223T

RS-232 to RS-422 conversion! Terminal block connection + external power supply compatible model.

The ULI-223T is an industrial converter that converts RS-232 signals to RS-422, extending communication distances up to 1.2 km. In addition to port power supply, it supports an external power source (12VDC) for stable operation. The RS-422 side uses terminal block connections, making it ideal for control panels and field wiring. It supports bidirectional communication and a maximum data rate of 115.2 kbps. This model is perfect for applications that require flexible installation and high reliability in the field.

Product page

basic information

- Conversion: RS-232⇔RS-422 (bidirectional) - Communication distance: Up to 1.2 km - Data rate: Up to 115.2 kbps - Power supply method: Powered by RS-232 port + external power supply (12VDC) - RS-232 connector: DB9 female - RS-422 connection: Terminal block - Operating temperature: 0 to 70°C - Size/Weight: 87.3×31.8×15.9 mm - Certification: CE, FCC, RoHS

Price information

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Delivery Time

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The delivery date may vary depending on the quantity, so please feel free to contact us.

Model number/Brand name

ULI-223T

Applications/Examples of results

- Connection of industrial PCs and RS-422 devices - Long-distance serial communication (up to 1.2 km) - Terminal block wiring within the control panel - Stable operating environment requiring external power supply

Line up(1)

Model number overview
ULI-223T(BB-422PP9TB) RS-232 DB9F ⇔ RS-422 terminal block, port power supply + external power supply support

[Case Studies Included] Serial/USB Communication Devices Product Guide

PRODUCT

【Data Sheet】ULI-223-Series

DOCUMENT

Recommended Products for Industrial Sites: Advantech Industrial IoT Systems & Devices Star Product Guide (2025)

CATALOG

Recommended products

Distributors

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.