BT Master Single Telephone Socket IDC Terminals Wall Outlet Face Plate
Single BT Wall Master Socket & Back Box- IDC Terminals - 3/1A Quantity x 1 Used for - This BT master socket should be connected to the main incoming telephone line into a property, it cannot be used as an extension socket. The faceplate is…View more
BT Master Single Telephone Socket IDC Terminals Wall Outlet Face Plate
Single BT Wall Master Socket & Back Box- IDC Terminals - 3/1A Quantity x 1 Used for - This BT master socket should be connected to the main incoming telephone line into a property, it cannot be used as an extension socket. The faceplate is supplied with a standard single back box & fixing screws. How to fit - The BT drop cable coming from outside the property usually has orange, white, green and black wires. Usually (but not always) the orange and white internal wires are the active pair and go to connections 2 and 5 on the master socket, in some master sockets these connections are marked A & B. If you are removing or changing your current master socket, you can check which wires are the active pair by looking at the original wiring. Which way round the internal wires are connected does not usually matter, however the polarity can sometimes stop some equipment from working. One of the cables will have a voltage of -48V and this needs to go to pin 5 (B) and the other will have a