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.

Results: 13
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 Mfr.
Description Datasheet Availability Pricing (GBP) Filter the results in the table by unit price based on your quantity.
Qty. RoHS ECAD Model Product
Type
Number of Ports
Maximum Data Rate
Interface Type
Supply Voltage - Min
Supply Voltage - Max
Minimum Operating Temperature
Maximum Operating Temperature
Series
Advantech Interface Modules ULI-224TCI 3-Way Iso. RS-232 to RS-422/4
Datasheet
80In Stock
Min.: 1
Mult.: 1

Converters RS-232 to RS-422/485 2 Port 115.2 kb/s RS-232/422/485 10 V 48 V - 40 C + 80 C
Advantech Interface Modules ULI-223D RS-422 Converter, Port Powered,
Datasheet
415In Stock
500Expected 16/11/2026
Min.: 1
Mult.: 1

Converters RS-232 to RS-422 2 Port 115.2 kb/s RS-232/422 5 V 5 V 0 C + 70 C
Advantech Interface Modules ULI-224TC Ind. RS-232 to RS-422/485 CNVT
Datasheet
145In Stock
129Expected 07/09/2026
Min.: 1
Mult.: 1

Converters RS-232 to RS-422/485 2 Port 115.2 kb/s RS-232/422/485 10 V 30 V - 40 C + 80 C
Advantech Interface Modules ULI-227D3 RS-232 to TTL 3.3 V CNVTR Port
Datasheet
198In Stock
82Expected 27/08/2026
Min.: 1
Mult.: 1

Converters RS-232 to TTL/CMOS 2 Port 115.2 kb/s RS-232 3.3 V 3.3 V 0 C + 70 C
Advantech Interface Modules ULI-321D USB to 1 x RS-232 DB9M CNV
Datasheet
25In Stock
Min.: 1
Mult.: 1

Converters USB to RS-232 2 Port 12 Mb/s RS-232, USB 5 V 5 V - 40 C + 80 C
Advantech Interface Modules ULI-223T RS-422 Converter, Port Powered,
Datasheet
33In Stock
34Expected 21/10/2026
Min.: 1
Mult.: 1

Converters RS-232 to RS-422 2 Port 115.2 kb/s RS-232/422 5 V 5 V 0 C + 70 C BB-485USBTB-2W-LS
Advantech Interface Modules ULI-226D RS-485 Converter, Port Powered,
Datasheet
144In Stock
200Expected 16/09/2026
Min.: 1
Mult.: 1

Converters RS-232 to RS-485 2 Port 115.2 kb/s RS-232/485 12 V 12 V 0 C + 70 C
Advantech Interface Modules ULI-224TCL RS-232 to Iso. RS-422/485 CNV
Datasheet
105In Stock
Min.: 1
Mult.: 1

Converters RS-232 to RS-422/485 2 Port 115.2 kb/s RS-232/422/485 10 V 48 V 0 C + 70 C
Advantech Interface Modules ULI-262D RS-232 Modem Data Splitter, DB9
Datasheet
127In Stock
Min.: 1
Mult.: 1

Splitters RS-232 3 Port RS-232 0 C + 70 C
Advantech Interface Modules ULI-321DK USB to 1 x Lck RS-232 DB9M CNV
Datasheet
15In Stock
Min.: 1
Mult.: 1

Converters USB to RS-232 2 Port 12 Mb/s RS-232, USB - 40 C + 80 C
Advantech Interface Modules ULI-226T RS-485 Converter, Port Powered,
Datasheet
10In Stock
300On Order
Min.: 1
Mult.: 1

Converters RS-232 to RS-485 2 Port 115.2 kb/s RS-232/485 12 V 12 V 0 C + 70 C
Advantech Interface Modules ULI-234TC Ind. RS-422/485 Repeater / Iso
Datasheet
136On Order
Min.: 1
Mult.: 1

Repeaters RS-422/485 2 Port 115.2 kb/s RS-422/485 10 V 30 V - 40 C + 80 C
Advantech Interface Modules ULI-234TCL RS-485 Isoaltor
Datasheet
33On Order
Min.: 1
Mult.: 1

Repeaters RS-422/485 2 Port RS-422/485 12 V 12 V 0 C + 55 C