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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Industrial Automation
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Description Datasheet Availability Pricing (JPY) 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
Datasheet
72In Stock
¥39,415.5
Min.: 1
Mult.: 1
Advantech Signal Conditioners & Signal Converters ULI-227D3 RS-232 to TTL 3.3 V CNVTR Port
Datasheet
228In Stock
¥13,633.5
Min.: 1
Mult.: 1
Advantech Signal Conditioners & Signal Converters ULI-224TC Ind. RS-232 to RS-422/485 CNVT
Datasheet
244In Stock
¥33,894.4
Min.: 1
Mult.: 1
Advantech Interface Modules ULI-226D RS-485 Converter, Port Powered,
Datasheet
229In Stock
¥16,852.5
Min.: 1
Mult.: 1
Advantech Signal Conditioners & Signal Converters ULI-226T RS-485 Converter, Port Powered,
Datasheet
217In Stock
60Expected 11/26/2026
¥16,852.5
Min.: 1
Mult.: 1
Advantech Signal Conditioners & Signal Converters ULI-223D RS-422 Converter, Port Powered,
Datasheet
619In Stock
482On Order
¥16,928.9
Min.: 1
Mult.: 1
Advantech Signal Conditioners & Signal Converters ULI-321D USB to 1 x RS-232 DB9M CNV
Datasheet
23In Stock
¥15,716.4
Min.: 1
Mult.: 1
Advantech Signal Conditioners & Signal Converters ULI-321DK USB to 1 x Lck RS-232 DB9M CNV
Datasheet
30In Stock
¥15,716.4
Min.: 1
Mult.: 1
Advantech Signal Conditioners & Signal Converters ULI-223T RS-422 Converter, Port Powered,
Datasheet
45In Stock
¥16,852.5
Min.: 1
Mult.: 1
Advantech Signal Conditioners & Signal Converters ULI-224TCL RS-232 to Iso. RS-422/485 CNV
Datasheet
91In Stock
¥27,077.6
Min.: 1
Mult.: 1
Advantech Interface Modules ULI-262D RS-232 Modem Data Splitter, DB9
Datasheet
83In Stock
200Expected 11/24/2026
¥14,580.3
Min.: 1
Mult.: 1
Advantech Signal Conditioners & Signal Converters ULI-234TCL RS-485 Isoaltor
Datasheet
17In Stock
23On Order
¥34,273.1
Min.: 1
Mult.: 1
Advantech Signal Conditioners & Signal Converters ULI-234TC Ind. RS-422/485 Repeater / Iso
Datasheet
32In Stock
171On Order
¥44,876.9
Min.: 1
Mult.: 1