Serial Connectivity Solutions

Advantech Serial Connectivity Solutions feature a broad selection of RS-232, RS-422, and RS-485 serial connectivity devices. These serial devices allow the designer to communicate effectively with a wide range of converters, repeaters, surge protectors, isolators, extenders, switches, combiners / splitters, and modems. Typical applications include industrial automation, medical, healthcare, and security.

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Select Image Part # Mfr. Description Datasheet Availability Pricing (GBP) Filter the results in the table by unit price based on your quantity. Qty. RoHS
Advantech Signal Conditioners & Signal Converters ULI-224TCI 3-Way Iso. RS-232 to RS-422/4 76In Stock
£203.11
Min.: 1
Mult.: 1
Advantech Signal Conditioners & Signal Converters ULI-227D3 RS-232 to TTL 3.3 V CNVTR Port 242In Stock
£61.63
Min.: 1
Mult.: 1
Advantech Signal Conditioners & Signal Converters ULI-224TC Ind. RS-232 to RS-422/485 CNVT 250In Stock
£153.20
Min.: 1
Mult.: 1
Advantech Interface Modules ULI-226D RS-485 Converter, Port Powered, 275In Stock
£76.18
Min.: 1
Mult.: 1
Advantech Signal Conditioners & Signal Converters ULI-226T RS-485 Converter, Port Powered, 194In Stock
100Expected 25/11/2026
£76.18
Min.: 1
Mult.: 1
Advantech Signal Conditioners & Signal Converters ULI-223D RS-422 Converter, Port Powered, 573In Stock
531On Order
£76.52
Min.: 1
Mult.: 1
Advantech Signal Conditioners & Signal Converters ULI-321D USB to 1 x RS-232 DB9M CNV 23In Stock
£71.04
Min.: 1
Mult.: 1
Advantech Signal Conditioners & Signal Converters ULI-321DK USB to 1 x Lck RS-232 DB9M CNV 30In Stock
£71.04
Min.: 1
Mult.: 1
Advantech Signal Conditioners & Signal Converters ULI-223T RS-422 Converter, Port Powered, 47In Stock
£76.18
Min.: 1
Mult.: 1
Advantech Signal Conditioners & Signal Converters ULI-224TCL RS-232 to Iso. RS-422/485 CNV 99In Stock
£122.39
Min.: 1
Mult.: 1
Advantech Interface Modules ULI-262D RS-232 Modem Data Splitter, DB9 148In Stock
£65.90
Min.: 1
Mult.: 1
Advantech Signal Conditioners & Signal Converters ULI-234TCL RS-485 Isoaltor 17In Stock
23On Order
£154.91
Min.: 1
Mult.: 1
Advantech Signal Conditioners & Signal Converters ULI-234TC Ind. RS-422/485 Repeater / Iso 38In Stock
171On Order
£202.84
Min.: 1
Mult.: 1