3. T-Line
and
R-Line
are
shorted or mixed up.
Shorted or mixed up
T-Line
T-Line
R-Line
EXCHANGE
R-Line
Sympton: 3-1 A can not dial.
3-2 Conversation
is
impossible between stations.
3-3 When B dials A ,
noise
will
be
heard at B
immediately after the calling tone.
LMU Lamps ----- Brighter than normal.
4. T-Line and R-Line are connected conversely.
T-Line
T-Line
R-Line
Conversed
EXCHANGE
R-Line
Sympton:
4-1 A can not make dialing.
4-2 Conversation
is
impossible between stations.
4-3 When B dials A , noise will be heard at B.
LMU Lamps
-----
Brighter than normal.
-
-
-
-
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