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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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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (THB) Filter the results in the table by unit price based on your quantity.	Qty.
Signal Conditioners & Signal Converters ULI-224TCI 3-Way Iso. RS-232 to RS-422/4 BB-485DRCI Advantech 1: ฿7,905.84 79In Stock	Mfr. Part No. BB-485DRCI Mouser Part No 600-485DRCI	Advantech	Signal Conditioners & Signal Converters ULI-224TCI 3-Way Iso. RS-232 to RS-422/4 Learn More about Advantech bbelect serial connectivity	Datasheet	79In Stock	฿7,905.84	Min.: 1 Mult.: 1
Signal Conditioners & Signal Converters ULI-227D3 RS-232 to TTL 3.3 V CNVTR Port BB-232LPTTL33 Advantech 1: ฿2,399.04 258In Stock	Mfr. Part No. BB-232LPTTL33 Mouser Part No 600-232LPTTL33	Advantech	Signal Conditioners & Signal Converters ULI-227D3 RS-232 to TTL 3.3 V CNVTR Port Learn More about Advantech bbelect serial connectivity	Datasheet	258In Stock	฿2,399.04	Min.: 1 Mult.: 1
Signal Conditioners & Signal Converters ULI-223D RS-422 Converter, Port Powered, BB-422PP9R Advantech 1: ฿2,978.81 350In Stock 462On Order	Mfr. Part No. BB-422PP9R Mouser Part No 600-422PP9R	Advantech	Signal Conditioners & Signal Converters ULI-223D RS-422 Converter, Port Powered, Learn More about Advantech bbelect serial connectivity	Datasheet	350In Stock 462On Order On Order Ship Dates Mfr. No: BB-422PP9R Stock: 350 Can Dispatch Immediately On Order: 62 Expected 10/23/2026 400 Expected 11/16/2026 Factory Lead Time: 11 Weeks	฿2,978.81	Min.: 1 Mult.: 1
Signal Conditioners & Signal Converters ULI-224TC Ind. RS-232 to RS-422/485 CNVT BB-485LDRC9 Advantech 1: ฿5,964.28 185In Stock 80Expected 10/15/2026	Mfr. Part No. BB-485LDRC9 Mouser Part No 600-485LDRC9	Advantech	Signal Conditioners & Signal Converters ULI-224TC Ind. RS-232 to RS-422/485 CNVT Learn More about Advantech bbelect serial connectivity	Datasheet	185In Stock 80Expected 10/15/2026	฿5,964.28	Min.: 1 Mult.: 1
Interface Modules ULI-226D RS-485 Converter, Port Powered, BB-485SD9R Advantech 1: ฿2,965.48 299In Stock	Mfr. Part No. BB-485SD9R Mouser Part No 600-485SD9R	Advantech	Interface Modules ULI-226D RS-485 Converter, Port Powered, Learn More about Advantech bbelect serial connectivity	Datasheet	299In Stock	฿2,965.48	Min.: 1 Mult.: 1
Signal Conditioners & Signal Converters ULI-321D USB to 1 x RS-232 DB9M CNV BB-232USB9M Advantech 1: ฿2,765.56 25In Stock	Mfr. Part No. BB-232USB9M Mouser Part No 600-232USB9M	Advantech	Signal Conditioners & Signal Converters ULI-321D USB to 1 x RS-232 DB9M CNV Learn More about Advantech bbelect serial connectivity	Datasheet	25In Stock	฿2,765.56	Min.: 1 Mult.: 1
Signal Conditioners & Signal Converters ULI-321DK USB to 1 x Lck RS-232 DB9M CNV BB-232USB9M-LS Advantech 1: ฿2,765.56 30In Stock	Mfr. Part No. BB-232USB9M-LS Mouser Part No 600-232USB9M-LS	Advantech	Signal Conditioners & Signal Converters ULI-321DK USB to 1 x Lck RS-232 DB9M CNV Learn More about Advantech bbelect serial connectivity	Datasheet	30In Stock	฿2,765.56	Min.: 1 Mult.: 1
Signal Conditioners & Signal Converters ULI-223T RS-422 Converter, Port Powered, BB-422PP9TB Advantech 1: ฿2,965.48 67In Stock	Mfr. Part No. BB-422PP9TB Mouser Part No 600-422PP9TB	Advantech	Signal Conditioners & Signal Converters ULI-223T RS-422 Converter, Port Powered, Learn More about Advantech bbelect serial connectivity	Datasheet	67In Stock	฿2,965.48	Min.: 1 Mult.: 1
Signal Conditioners & Signal Converters ULI-234TC Ind. RS-422/485 Repeater / Iso BB-485OPDR Advantech 1: ฿7,896.84 39In Stock 194On Order	Mfr. Part No. BB-485OPDR Mouser Part No 600-485OPDR	Advantech	Signal Conditioners & Signal Converters ULI-234TC Ind. RS-422/485 Repeater / Iso Learn More about Advantech bbelect serial connectivity	Datasheet	39In Stock 194On Order On Order Ship Dates Mfr. No: BB-485OPDR Stock: 39 Can Dispatch Immediately On Order: 19 Expected 10/15/2026 75 Expected 12/16/2026 100 Expected 12/28/2026 Factory Lead Time: 15 Weeks	฿7,896.84	Min.: 1 Mult.: 1
Signal Conditioners & Signal Converters ULI-226T RS-485 Converter, Port Powered, BB-485SD9TB Advantech 1: ฿2,965.48 109In Stock 200Expected 11/25/2026	Mfr. Part No. BB-485SD9TB Mouser Part No 600-485SD9TB	Advantech	Signal Conditioners & Signal Converters ULI-226T RS-485 Converter, Port Powered, Learn More about Advantech bbelect serial connectivity	Datasheet	109In Stock 200Expected 11/25/2026	฿2,965.48	Min.: 1 Mult.: 1
Signal Conditioners & Signal Converters ULI-224TCL RS-232 to Iso. RS-422/485 CNV BB-4WSD9OTB Advantech 1: ฿4,764.76 102In Stock	Mfr. Part No. BB-4WSD9OTB Mouser Part No 600-4WSD9OTB	Advantech	Signal Conditioners & Signal Converters ULI-224TCL RS-232 to Iso. RS-422/485 CNV Learn More about Advantech bbelect serial connectivity	Datasheet	102In Stock	฿4,764.76	Min.: 1 Mult.: 1
Interface Modules ULI-262D RS-232 Modem Data Splitter, DB9 BB-9PMDS Advantech 1: ฿2,565.64 72In Stock 100Expected 10/1/2026	Mfr. Part No. BB-9PMDS Mouser Part No 600-9PMDS	Advantech	Interface Modules ULI-262D RS-232 Modem Data Splitter, DB9 Learn More about Advantech bbelect serial connectivity	Datasheet	72In Stock 100Expected 10/1/2026	฿2,565.64	Min.: 1 Mult.: 1
Signal Conditioners & Signal Converters ULI-234TCL RS-485 Isoaltor BB-485OP Advantech 1: ฿6,030.92 2In Stock 28On Order	Mfr. Part No. BB-485OP Mouser Part No 600-485OP	Advantech	Signal Conditioners & Signal Converters ULI-234TCL RS-485 Isoaltor Learn More about Advantech bbelect serial connectivity	Datasheet	2In Stock 28On Order On Order Ship Dates Mfr. No: BB-485OP Stock: 2 Can Dispatch Immediately On Order: 4 Pending 24 Expected 10/23/2026 Factory Lead Time: 12 Weeks	฿6,030.92	Min.: 1 Mult.: 1

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