What are they please

Please explain further, where did you find this statement, switch for point and point for insert" and used in what context?

I was given a points diagram by a company which is installing a living area with a fire place and TV unit completes with all amenities which are all electric

What is a points diagram?

Can you scan and attached here?


What country are you located in?

Sounds like somnething to do with teledata jacks.