IBM 5280 Manual page 262
Distributed data system programmable data station maintenance analysis procedures
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H J
5 5
COMMUNICATIONS MAP
33LS MANUAL ANSWER
PAGE
6 OF
6
028
Disconnect
from
the
connect
telephone
telephone
the
data
station
telephone
line and
the
associated
directly
to
the
line
(at
the
wall-mounted connector level).
(ENTRY POINT B)
Dial
the
data
station
from
another telephone.
Can you communicate correctly?
Y N
029
Ask the customer to call the
PTT representative.
030
(ENTRY POINT
C)
With
an
telephone
ohmmeter,
cable(s)
check the
from
the
line plate to the wall-mounted
connector.
See
HIM
369
to
find the failure.
Does
the
cable(s)
check
out
correctly?
Y N
031
Suspect the cable(s).
032
033
Defective
World
Trade
plate.
-
Disconnect the jack.
GO TO STEP 028,
ENTRY POINT
B.
line
MAP 3013-6
No
busy
tone,
called
telephone
rings, and the connection is made.
Suspect a
short
circuit
in
the
connection.
EC840874
PEC839787
MAP 3018-6
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