BT HERALD/PENTARA WIRING


Extension Wiring for a Standard POT Telephone using a Master Line Jack Unit (-/1A)

System Colour Socket
A WHITE/Blue 5
B BLUE/White 2
Earth WHITE/Orange 4
 

Extension Wiring for Feature Phones using Secondary Line Jack Unit (-/3A)

System Colour Socket
A WHITE/Blue 5
B BLUE/White 2
C WHITE/Orange 4
D ORANGE/White 3
 PARTS LIST 
 
 
BACK Home page BT/GPO Telephones Search the Site Glossary of Telecom Terminology Quick Find All Telephone Systems

Last revised: December 19, 2010

FM