EncoreCX
Installation & Maintenance Manual
40
Connecting the extensions
It is recommended that all extensions be cabled with two pairs. The ECX 1000 series telephones and ECX
2000 digital telephones use all four wires and standard phones use the AB pair only.
Do not exceed the following resistance or distance limits when connecting extensions to the System Unit.
(The distances listed assume 24 AWG tinned copper conductor is used.)
· 100 Ohms, or 1600 feet, for digital telephone sets
· 400 Ohms, or 6500 feet, for a standard telephone
The extension cables must be of twisted-pair construction, using 24 AWG wire.
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 neighboring high current-carrying cables). If this is a possibility,
external protection of the CCU and extensions using earthed line surge
protectors is essential.
Connector pinout Function RJ11 pinout
A Speech Pin 3
B Speech Pin 4
CDataPin 2
DDataPin 5
To Next Page
Loading...
