The UK Telephone System
|This is an over view of how the components of the British telephone system
work together (1900's - 1980's).
Click on any part of the picture you have an interest in.
Start in the house with the lady on the telephone making a call. She uses a telephone - connected to internal wiring - connected to a terminal block - connected to underground cable. The house next door is fed by overhead wiring which connects to the underground cable via a terminal block at the top of the pole. The underground cable then goes to the exchange, via a pillar and cabinet, where it terminates on the main distribution frame (MDF).
There is a call in progress and a simplified version of a Strowger type automatic exchange can be seen to the top left in schematic below. The lady in the house is dialling 2369.
Last revised: February 05, 2011