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BT Versatility
Installation and maintenance Manual
32
Four wires per Extension are connected at the Main Equipment. Spare wires must be neatly laid back
away from the connectors. To prevent cross talk or interference, cable pairs should not be split or the
spare wire of cable pairs used.
All Extensions should connect into standard line jack units. Extension cabling
should not be exposed to high voltage surges, (for example, surges induced by
lightning or neighbouring high current-carrying cables). If this is a possibility
external protection of the Main Equipment and Extensions using ‘earthed line
surge protectors’ is essential.
Connector pin- out Function RJ 12 pin out
A Speech Pin 2
B Speech Pin 5
C Data Pin 1
D Data Pin 6
Standard 4-Wire IDC Krone connector
A
Speech - LJU Pin 2
B Speech - LJU Pin 5
C Data - LJU Pin 1
D Data - LJU Pin 6