Ethernet Couplers

Ethernet couplers are devices used to connect ethernet cable connections from one type to another. There can be various reasons to use a coupler such as to extend network cabling, split a signal allowing for two cables to be connected to a single port or to allow for different network cable types to be connected.

Types of Ethernet Couplers

Mainly differing in how many ports they have. Couplers may have between one and six ports, allowing them to connect up to six cables at one time. They can also differ in their wiring configuration and there are many different types of couplers, from in-line connectors to junction boxes, depending on what you need to convert between.

They can be found in both shielded or unshielded forms and feature the standardized snap-in system to ensure that a reliable connection is made and kept. Couplers can be used with almost any cable types including Cat5, Cat5e, Cat6a, Cat7 and many more. Always ensure to check both connector A and connector B when buying an ethernet coupler to ensure you can make the exact connections you need and in the correct orientation when using a coupler to split a line. 

How does an ethernet coupler work?

Inline couplers typically feature two female connection sockets allowing for two male cables to join. These back to back female connectors simply line up allowing for the 8 cores of wire within the cable to almost seamlessly meet in the middle. 

Ethernet splitters work under a similar principle to inline however splitters typically have two or more female sockets on a single side of the coupler with a single connector B that is often a male plug. This single male plug enters the couplers housing and is then fed across all of the female sockets. This then allows for the signal to be split across the sockets to all cables connected. 


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Description Price Type Interface Type LAN Category Number of Ports Shield Type Wiring Configuration Length Width Depth Diameter Extension Length
RS Stock No. 916-0243
BrandRS PRO
kr 89,79
Each
Units
Feedthrough Connector RJ45 Female Cat5e 2 UTP - - 26mm - - -
RS Stock No. 340-9630
BrandRS PRO
kr 78,99
Each
Units
Coupler RJ45 Female Cat5e - STP Straight Through 18mm 17mm 28.7mm - -
RS Stock No. 916-0252
BrandRS PRO
kr 112,41
Each
Units
Feedthrough Connector RJ45 Cat5e 2 FTP - - 26mm - - -
RS Stock No. 186-3048
BrandRS PRO
kr 72,19
Each
Units
Coupler RJ45 Cat3 - UTP Straight Through 22.02mm 16mm 37.3mm - -
RS Stock No. 340-9624
BrandRS PRO
kr 112,63
Each
Units
Coupler RJ45 Female Cat5e - UTP Straight Through 17.3mm 16.3mm 28mm - -
RS Stock No. 186-3111
BrandRS PRO
kr 83,17
Each
Units
Modular Coupler RJ45 - 2 Shielded Straight Through 18.54mm 21mm 27.46mm - -
RS Stock No. 907-5656
BrandRS PRO
kr 111,28
Each
Units
- - Cat5e - FTP - - - - - -
RS Stock No. 186-3149
BrandRS PRO
kr 54,23
Each
Units
Coupler RJ45 - 2 UTP Straight Through 20.55mm 14.48mm 26.96mm - -
RS Stock No. 340-9646
BrandRS PRO
kr 59,41
Each
Units
Wiring Box Punch Down Cat5e 2 UTP Straight Through 25mm 25mm 45mm - -
RS Stock No. 186-3054
BrandRS PRO
kr 88,89
Each
Units
Coupler RJ45 Cat3 - UTP Crossed 22.02mm 16mm 37.3mm - -
RS Stock No. 186-3155
BrandRS PRO
kr 128,27
Each
Units
Extender RJ11 Female, RJ11 Male Cat3 1 - - - - - - 2 m
RS Stock No. 360-7115
BrandRS PRO
kr 140,87
Each
Units
Coupler RJ45 Male Cat5e - UTP Straight Through 19.6mm 23mm 32.5mm - -
RS Stock No. 124-2520
BrandRS PRO
kr 95,64
Each
Units
Adapter RJ45, Terminal Block - 8 - Straight Through - - - - -
RS Stock No. 907-5665
BrandRS PRO
kr 117,92
Each
Units
- - Cat6 - UTP - - - - - -
RS Stock No. 625-6209
BrandRS PRO
kr 94,29
Each
Units
Adapter RJ11 - - - Straight Through 18mm 45mm 28mm - -
RS Stock No. 186-3161
BrandRS PRO
kr 111,39
Each
Units
Extender RJ45 Female, RJ45 Male Cat3 1 - - - - - - 2 m
RS Stock No. 186-3133
BrandRS PRO
kr 47,82
Each
Units
Coupler RJ11 - 2 Unshielded Straight Through 20.55mm 14.48mm 26.96mm - -
RS Stock No. 724-8953
BrandRS PRO
kr 260,37
Each
Units
PCB Unit RJ45, Screw Terminal - - - - - - - - -
RS Stock No. 916-0259
BrandRS PRO
kr 172,27
Each
Units
Feedthrough Connector RJ45 Cat6 2 FTP - - 26mm - - -
RS Stock No. 874-1229
BrandRS PRO
kr 89,79
Each
Units
Coupler RJ45 Cat6 - Shielded - - - - - -