BS 6312

British telephone plug with only two pins, from a modem cable

BS6312 is the British Standard governing telephone plugs and sockets.

Plugs

There are two types of British Telecom plugs - 431A and 631A. 431A is 4 way and 631A 6 way. They fit a standard "type 600" telephone socket. There are also plugs with only two contacts commonly seen on modem leads. These are a recent introduction and do not seem to be easily available as separate parts.

See also

RJ-11

External links

• Wiring diagram
• UK plug and socket telephones

References