No
No
Can you dial
an extension?
Can you dial
out on a trunk?
Yes
Connection between the PBX and an SLT:
SOLUTIONCAUSE
The T/R is connected as below. Use the correct cord (the inner 2 wires
are for T/R).
If a telephone equipped with an A-A1
relay is connected to the PBX, set
the A-A1 relay switch of the telephone
to "OFF".
PBX
T
R
T
R
Extension
Connection between the PBX and an SLT that is polarity-sensitive:
SOLUTIONCAUSE
The "T" is connected to the "R". Reverse the connections of the T/R.
PBX
T
R
T
R
Extension
Connection between the trunk and the PBX:
SOLUTIONCAUSE
Trunk is connected as below. Reconnect the trunk to the T/R of the
telephone jack using 2-conductor wiring.
PBX
T
R
T
R
Trunk
Trunk is connected as below.
PBX
T
R
T
R
Trunk
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