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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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Part #

Signal Conditioners & Signal Converters ULI-224TCI 3-Way Iso. RS-232 to RS-422/4

BB-485DRCI
Advantech
1: HK$1,950.36
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

Datasheet

79In Stock

HK$1,950.36

Min.: 1
Mult.: 1

Signal Conditioners & Signal Converters ULI-227D3 RS-232 to TTL 3.3 V CNVTR Port

BB-232LPTTL33
Advantech
1: HK$591.84
260In 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

Datasheet

260In Stock

HK$591.84

Min.: 1
Mult.: 1

Signal Conditioners & Signal Converters ULI-223D RS-422 Converter, Port Powered,

BB-422PP9R
Advantech
1: HK$734.87
412In Stock
500Expected 16/11/2026

Mfr. Part No.
BB-422PP9R

Mouser Part No
600-422PP9R

Advantech

Signal Conditioners & Signal Converters ULI-223D RS-422 Converter, Port Powered,

Datasheet

412In Stock

500Expected 16/11/2026

HK$734.87

Min.: 1
Mult.: 1

Signal Conditioners & Signal Converters ULI-224TC Ind. RS-232 to RS-422/485 CNVT

BB-485LDRC9
Advantech
1: HK$1,471.38
158In Stock
115Expected 8/10/2026

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

Datasheet

158In Stock

115Expected 8/10/2026

HK$1,471.38

Min.: 1
Mult.: 1

Interface Modules ULI-226D RS-485 Converter, Port Powered,

BB-485SD9R
Advantech
1: HK$731.58
196In Stock
125Expected 16/9/2026

Mfr. Part No.
BB-485SD9R

Mouser Part No
600-485SD9R

Advantech

Interface Modules ULI-226D RS-485 Converter, Port Powered,

Datasheet

196In Stock

125Expected 16/9/2026

HK$731.58

Min.: 1
Mult.: 1

Signal Conditioners & Signal Converters ULI-321D USB to 1 x RS-232 DB9M CNV

BB-232USB9M
Advantech
1: HK$682.26
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

Datasheet

25In Stock

HK$682.26

Min.: 1
Mult.: 1

Signal Conditioners & Signal Converters ULI-223T RS-422 Converter, Port Powered,

BB-422PP9TB
Advantech
1: HK$731.58
67In Stock

Mfr. Part No.
BB-422PP9TB

Mouser Part No
600-422PP9TB

Advantech

Signal Conditioners & Signal Converters ULI-223T RS-422 Converter, Port Powered,

Datasheet

67In Stock

HK$731.58

Min.: 1
Mult.: 1

Signal Conditioners & Signal Converters ULI-234TC Ind. RS-422/485 Repeater / Iso

BB-485OPDR
Advantech
1: HK$1,948.14
53In Stock
96On Order

Mfr. Part No.
BB-485OPDR

Mouser Part No
600-485OPDR

Advantech

Signal Conditioners & Signal Converters ULI-234TC Ind. RS-422/485 Repeater / Iso

Datasheet

53In Stock

96On Order

HK$1,948.14

Min.: 1
Mult.: 1

Signal Conditioners & Signal Converters ULI-226T RS-485 Converter, Port Powered,

BB-485SD9TB
Advantech
1: HK$731.58
109In Stock
200Expected 25/11/2026

Mfr. Part No.
BB-485SD9TB

Mouser Part No
600-485SD9TB

Advantech

Signal Conditioners & Signal Converters ULI-226T RS-485 Converter, Port Powered,

Datasheet

109In Stock

200Expected 25/11/2026

HK$731.58

Min.: 1
Mult.: 1

Signal Conditioners & Signal Converters ULI-224TCL RS-232 to Iso. RS-422/485 CNV

BB-4WSD9OTB
Advantech
1: HK$1,175.46
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

Datasheet

102In Stock

HK$1,175.46

Min.: 1
Mult.: 1

Interface Modules ULI-262D RS-232 Modem Data Splitter, DB9

BB-9PMDS
Advantech
1: HK$632.94
75In Stock
100Expected 23/9/2026

Mfr. Part No.
BB-9PMDS

Mouser Part No
600-9PMDS

Advantech

Interface Modules ULI-262D RS-232 Modem Data Splitter, DB9

Datasheet

75In Stock

100Expected 23/9/2026

HK$632.94

Min.: 1
Mult.: 1

Signal Conditioners & Signal Converters ULI-321DK USB to 1 x Lck RS-232 DB9M CNV

BB-232USB9M-LS
Advantech
1: HK$682.26
11In Stock
20Expected 24/9/2026

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

Datasheet

11In Stock

20Expected 24/9/2026

HK$682.26

Min.: 1
Mult.: 1

Signal Conditioners & Signal Converters ULI-234TCL RS-485 Isoaltor

BB-485OP
Advantech
1: HK$1,487.82
30On Order

Mfr. Part No.
BB-485OP

Mouser Part No
600-485OP

Advantech

Signal Conditioners & Signal Converters ULI-234TCL RS-485 Isoaltor

Datasheet

30On Order

HK$1,487.82

Min.: 1
Mult.: 1