BT HERALD/PENTARA WIRING

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

System	Colour	Socket
A	WHITE/Blue	5
B	BLUE/White	2
C	WHITE/Orange	4
D	ORANGE/White	3

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

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Last revised: October 22, 2004