3 fault in cable – TOA Electronics EX-16 User Manual
Page 34
5.3 Fault in Cable
1. One
of
transmitting
lines (T-Line) is disconnected
Symptom:
1-1 A can dial.
1-2 A can hear B.
1-3 B can not hear A.
1-4 Noise is heard at B.
1-5 Noise increases at B when Press-To-Talk
bar is pressed at A.
2. One
of
receiving
lines
(R-Line)
is
disconnected.
Symptom:
2-1 A can dial without dialing tone.
2-2 When B dials A, busy tone or dial tone
will be heard at B immediately after the
calling tone.
Station (B)
T-Line
R-Line
EXCHANGE
R-Line
T-Line
Disconnected
Station (A)
Connector
numbers
T-Line
R-Line
Disconnected
(A)
EXCHANGE
(B)
T-Line
R-Line
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