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P8
Chap 3 Installation
Attention!!!
: When customer need to lengthen(extend) the cable or make a 4
wire cable by himself, he should be attention to the correct wire sequence of
cable: the two wires on middle(wire 2,3) are for voice transmission. wire 1,4 are
for power supply.
If wrong connection, the key phone will not work, even
destroy PABX system.
Furthermore make sure good contact and correct line
sequence when make the RJ11 crystal head.
In order to prevent interference between power supply and voice transmission,
the network twisted-pair wire is highly recommended to be used for making the
key phone cables.(power supply is two wires, voice is two wires)
3.1 The making method for the cable are both 6P4C RJ11 crystal heads on
two ends.
Wire sequence diagram
:
Twisted-pair wire diagram
:
Содержание PH201-D
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