Telecom Connectors 6 pins

BT Plug UK Telephone

The BT431A is the UK telephone connector for telephone and ADSL connections. Pins 2 and 5 carry the primary phone line. Not compatible with RJ11 without an adapter.

// connector diagram 6 pins

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// Specifications

Standard

BT 631A BS 6312

Primary Pair

Pin 2 A wire and Pin 5 B wire

Use Case

UK telephone sockets, DSL modems

Region

United Kingdom

// Pin Reference Table

Pin	Name	Function	Type
1	Spare	Unused	I/O
2	A Wire	Phone line A tip	BUS
3	Spare	Unused	I/O
4	Spare	Unused	I/O
5	B Wire	Phone line B ring	BUS
6	Spare	Unused	I/O

The BT431A is the UK telephone connector for telephone and ADSL connections. Pins 2 and 5 carry the primary phone line. Not compatible with RJ11 without an adapter.