RJ9/RJ10/RJ22 male plug to RJ45 socket converter, converts an RJ45 8 way plug (8P8C) to an RJ9/RJ10/RJ22 4 way plug (4P4C). Can be used for various telecom applications. It has become common for non telecom applications such as low voltage lighting control systems & central heating controllers to utilise RJ series plugs, these adaptors are suitable for these systems.
As the RJ45 connector is 8 way only the centre 4 pins are used as per wiring configuration below. Can be used for various telecom & low voltage applications. Product colour may vary.
Note-RJ10 plugs are also known as RJ9 & RJ22 plugs! RJ10 (4 way, 7mm wide)