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2.9 PBX Connections
2.9.1 Connecting to the PBX
One jack of the VPS can be connected to 1 jack of the PBX. For APT/DPT Integration, use a 4-conductor cable
to connect the VPS and PBX. For Inband or No Integration (KX-TVA50 only), use a 2-conductor (T and R)
cable.
Y
G
R
B
Y
G
R
B
4-Conductor Cable
Modular Connection
Outer Pins
Inner Pins
B: BLACK
R: RED
G: GREEN
Y: YELLOW
L5
Terminal wire
RJ-11
T4
R3
H2
RJ-11
64 Installation Manual Document Version 3.0 2010/06
2.9.1 Connecting to the PBX