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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 (CAD) 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: $341.68 76In Stock	Mfr. Part # BB-485DRCI Mouser Part # 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	76In Stock	$341.68	Min.: 1 Mult.: 1
Signal Conditioners & Signal Converters ULI-227D3 RS-232 to TTL 3.3 V CNVTR Port BB-232LPTTL33 Advantech 1: $103.68 242In Stock	Mfr. Part # BB-232LPTTL33 Mouser Part # 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	242In Stock	$103.68	Min.: 1 Mult.: 1
Signal Conditioners & Signal Converters ULI-224TC Ind. RS-232 to RS-422/485 CNVT BB-485LDRC9 Advantech 1: $257.76 253In Stock	Mfr. Part # BB-485LDRC9 Mouser Part # 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	253In Stock	$257.76	Min.: 1 Mult.: 1
Interface Modules ULI-226D RS-485 Converter, Port Powered, BB-485SD9R Advantech 1: $128.16 275In Stock	Mfr. Part # BB-485SD9R Mouser Part # 600-485SD9R	Advantech	Interface Modules ULI-226D RS-485 Converter, Port Powered, Learn More about Advantech bbelect serial connectivity	Datasheet	275In Stock	$128.16	Min.: 1 Mult.: 1
Signal Conditioners & Signal Converters ULI-226T RS-485 Converter, Port Powered, BB-485SD9TB Advantech 1: $128.16 201In Stock 100Expected 2026-11-25	Mfr. Part # BB-485SD9TB Mouser Part # 600-485SD9TB	Advantech	Signal Conditioners & Signal Converters ULI-226T RS-485 Converter, Port Powered, Learn More about Advantech bbelect serial connectivity	Datasheet	201In Stock 100Expected 2026-11-25	$128.16	Min.: 1 Mult.: 1
Signal Conditioners & Signal Converters ULI-223D RS-422 Converter, Port Powered, BB-422PP9R Advantech 1: $128.74 414In Stock 740On Order	Mfr. Part # BB-422PP9R Mouser Part # 600-422PP9R	Advantech	Signal Conditioners & Signal Converters ULI-223D RS-422 Converter, Port Powered, Learn More about Advantech bbelect serial connectivity	Datasheet	414In Stock 740On Order On Order Ship Dates Mfr. #: BB-422PP9R Stock: 414 Can Ship Immediately On Order: 20 Expected 2026-10-30 320 Expected 2026-11-23 400 Expected 2026-12-10 Factory Lead-Time: 13 Weeks	$128.74	Min.: 1 Mult.: 1
Signal Conditioners & Signal Converters ULI-321D USB to 1 x RS-232 DB9M CNV BB-232USB9M Advantech 1: $119.52 23In Stock	Mfr. Part # BB-232USB9M Mouser Part # 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	23In Stock	$119.52	Min.: 1 Mult.: 1
Signal Conditioners & Signal Converters ULI-321DK USB to 1 x Lck RS-232 DB9M CNV BB-232USB9M-LS Advantech 1: $119.52 30In Stock	Mfr. Part # BB-232USB9M-LS Mouser Part # 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	$119.52	Min.: 1 Mult.: 1
Signal Conditioners & Signal Converters ULI-223T RS-422 Converter, Port Powered, BB-422PP9TB Advantech 1: $128.16 47In Stock	Mfr. Part # BB-422PP9TB Mouser Part # 600-422PP9TB	Advantech	Signal Conditioners & Signal Converters ULI-223T RS-422 Converter, Port Powered, Learn More about Advantech bbelect serial connectivity	Datasheet	47In Stock	$128.16	Min.: 1 Mult.: 1
Signal Conditioners & Signal Converters ULI-224TCL RS-232 to Iso. RS-422/485 CNV BB-4WSD9OTB Advantech 1: $205.92 100In Stock	Mfr. Part # BB-4WSD9OTB Mouser Part # 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	100In Stock	$205.92	Min.: 1 Mult.: 1
Interface Modules ULI-262D RS-232 Modem Data Splitter, DB9 BB-9PMDS Advantech 1: $110.88 150In Stock	Mfr. Part # BB-9PMDS Mouser Part # 600-9PMDS	Advantech	Interface Modules ULI-262D RS-232 Modem Data Splitter, DB9 Learn More about Advantech bbelect serial connectivity	Datasheet	150In Stock	$110.88	Min.: 1 Mult.: 1
Signal Conditioners & Signal Converters ULI-234TCL RS-485 Isoaltor BB-485OP Advantech 1: $260.64 18In Stock 23On Order	Mfr. Part # BB-485OP Mouser Part # 600-485OP	Advantech	Signal Conditioners & Signal Converters ULI-234TCL RS-485 Isoaltor Learn More about Advantech bbelect serial connectivity	Datasheet	18In Stock 23On Order On Order Ship Dates Mfr. #: BB-485OP Stock: 18 Can Ship Immediately On Order: 4 Expected 2026-11-26 19 Expected 2027-03-01 Factory Lead-Time: 19 Weeks	$260.64	Min.: 1 Mult.: 1
Signal Conditioners & Signal Converters ULI-234TC Ind. RS-422/485 Repeater / Iso BB-485OPDR Advantech 1: $341.28 41In Stock 171On Order	Mfr. Part # BB-485OPDR Mouser Part # 600-485OPDR	Advantech	Signal Conditioners & Signal Converters ULI-234TC Ind. RS-422/485 Repeater / Iso Learn More about Advantech bbelect serial connectivity	Datasheet	41In Stock 171On Order On Order Ship Dates Mfr. #: BB-485OPDR Stock: 41 Can Ship Immediately On Order: 75 Expected 2026-12-23 96 Expected 2026-12-28 Factory Lead-Time: 15 Weeks	$341.28	Min.: 1 Mult.: 1

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