Hi this video shows how to install a new or replacement bt plug. Bt openreach are using new cables with new colour codes.
Leads Direct Telecoms Wiring
Bt 431a plug wiring diagram. A pair of bt plugs. Remember the rj45 wiring order. Contrary to how it might seem c1 is connected to terminals 2 3 not 1 4. Failing to do so will open the blades permanently damaging the connector. The replacement cable i got has blue blue and white and orange orange and white. Please note you must use the correct inserter tool to push the wires in to the phone socket idc connectors.
If the lead has a bt adapter at one end the colour swap is usually made there usr tended to swap it in the rj11 plug others do their own thing. Do not attempt to connect the old style round telephone lead to a plug no. Cord wiring bt supplied cords came in differing styles. Note that with the two rightmost 2 wire examples in the diagram going from rj11 to bt will involve the colour code going wrong at one end or the other unless a junction box or joint is used. 431a is used with 4 wire cordage whilst plug no. The bt telephone cable is an inexpensive piece of wiring with the actual cost of materials amounting to just a few pence per metre.
Both the 4 way bt431a and the 6 way bt631a are shown. The 4 way bt plugs are used in residential systems and the 6 way bt plugs. Note that the pictorial view shown above only serves to indicate the two differing types of sockets and wiring connections. The wiring diagram for a master lju socket is shown here. However the line is dead. There are two different types of bt extension leads 431a and 631a and to tell the difference count the slots with copper wires on the phone plug.
Click to check the right one for you or print as reference. 631a is used with 6 wire cordage. Rj45 pinout diagram shows wiring for standard t568b t568a and crossover cable. Click to find view print and more. I tried wiring the new cable like this. It plugs into the master socket and has a spare 431a connection at the bottom of this is a rj11 plug and the cable which came from that has a colour code white green blue and red.
431a bt 4 way plug 6p4c 631a bt 6 way plug 6p6c the 4 way plug is the standard one used on home and small business telephones. The complete ethernet pinout cable wiring reference with wiring step by step guide. For information on non bt line cords click here. This is pretty much unique to the uk and comes in two types. The following pictures show the standard bt telephone wiring colour code used with the bt nte5 master socket. The old wiring scheme was as follows connector 2 blue with white rings connector 3 orange with white rings connector 5 white with blue rings this has now changed to connector 2 blue connector 3 brown connector 5 orange the ring wire or bell wire.
The common ones are tabled below. In the uk the most common way of connecting a telecommunications device to the telephone line is a bt plug. Telephone wiring colour code bt nte5 master socket.
Gallery of Bt 431a Plug Wiring Diagram
