|All British Ericsson products had a product code number and this is generally
found on the bottom or rear of the item.
The wiring diagram found inside all Ericsson products has a number, which may start with an N - this is the diagram number and NOT the product code. Use the Ericsson telephone spreadsheet to cross reference the product code to the diagram number.
The early product codes were just numbers only. i.e. 340
The N series normally had a suffix made up of letters and numbers. i.e.
To find out specific variations, one has to refer to the Ericsson factory documentation. Some models had around 100 variations - too many to list here.
Tropical versions of any N series item have a T at the end of the code number.
During the late 1970's the code numbers changed to all number codes separated by slashes. i.e. 617/1/02188. This series was used by Plessey and GPT telephone systems as well.
Material Suffixes (Mouldings and Piece Parts)
Last revised: March 15, 2022