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4.1 Troubleshooting
224 Installation Manual
4.1.2 Connection
Connection between the Hybrid IP-PBX and a PT:
Connection between the Hybrid IP-PBX and an SLT:
Connection between the Hybrid IP-PBX and an SLT that is polarity-sensitive:
CAUSE
The T/R is connected to the D1/D2.
SOLUTION
Use the correct cord (the
inner 2 wires are for T/R and
the outer 2 wires are for
D1/D2).
D1
T
R
D2
D1
T
R
D2
Hybrid IP-PBX
Hybrid IP-PBX
Hybrid IP-PBX
Extension
CAUSE
The T/R is connected to the D1/D2.
SOLUTION
Use the correct cord (the
inner 2 wires are for T/R).
•
D1
T
R
D2
T
R
Extension
CAUSE
The "T" is connected to the "R".
SOLUTION
Reverse the connections of
the T/R.
D1
T
R
D2
T
R
Extension
Can you dial
an extension?
(Continued on the next page.)
No
Ye s
If a telephone equipped
with an A-A1 relay is
connected to the Hybrid
IP-PBX, set the A-A1
relay switch of the
telephone to "OFF".