| This page links you to two spreadsheets and the spreadsheet download page. One spreadsheet is for N diagrams
(Telephone apparatus circuit diagrams) which has links (links are separated, one for Web users and one for CD users) and
the other is for all other diagram types, but has no links. All spreadsheets are in Excel format - the spreadsheets can also be downloaded to
your PC by - right click - save to disk.
 DIAGRAM
INFORMATION - Description of the diagram system including a list of all the BPO diagram prefix's
DIAGRAM
SYMBOL INFORMATION - How to identify the symbols on the diagrams
DIAGRAM
SPREADSHEET - (All diagrams except N, in Excel Worksheet format) -
large file
N DIAGRAM
SPREADSHEET - (N Diagrams only, in Excel Spreadsheet format) - large
file
Here is a short list of the most requested diagram types:-
AT - AUTOMATIC TELEPHONE EXCHANGE EQUIPMENT
FA - WIRING DIAGRAMS (FIRE SYSTEMS)
N - DIAGRAMS (TELEPHONES & PBX)
PA - WIRING DIAGRAMS (POLICE SYSTEMS)
Q - DIAGRAMS LIST (HES AND ITS)
RP - REPEATER STATION EQUIPMENT
SA - WIRING DIAGRAMS (SUBSCRIBER APPARATUS)
T - WIRING DIAGRAMS (TESTING)
TG - WIRING DIAGRAMS (TELEGRAPHS)
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