TM 11-6625-2398-15-3
Step
Test equipment
Equipment under
Test
Performance
No.
control settings
test control settings
procedure
standard
terminals of the ohmmeter to con-
tacts of the plugs, which are con-
nected to the two wires of the cable.
b. Repeat c and d of step 1.
Meter reading of 100
megohms or higher
must be obtained.
3
Observe Warning in step 1 above.
Check insulation resistance on cable
W39 (fig. 6,11) as follows:
Note.
Couplers W39CP1 and W39CP2 must
be connected in cable W39.
a. Connect the GROUND terminal of
the ohmmeter to the outer shell of one
of the coaxial connectors on a plug.
b. Repeat c of step 1.
c. Successively (stopping hand
cranking while connecting test lead
between each test) connect the
LINE terminal to each plug contact
(total 8) connected to wires.
d. Repeat d of step 1 for the eight
Meter reading of 100
tests.
megohms or higher
must be obtained on
each test.
4
Observe Warning in step 1 above.
Check insulation resistance on cable
W40 (fig. 6-12) as follows:
a. Connect the GROUND terminal of
the ohmmeter to plug contact pin 4.
b. Repeat c of step 1.
c. Repeat c of step 3 for plug con-
tacts 6 and 9.
d. Repeat d of step 1 for both tests.
Meter reading of 100
megohms or higher
must be obtained for
both tests.
e. Connect the GROUND terminal
of the ohmmeter to the outer shell
of either plug on the cable.
f. Repeat c of step 3 for the balance
of the plug contacts (7) of the cable.
g. Repeat d of step 1 for the seven
Meter reading of 100
tests.
megohms or higher
must be obtained for
each test.
h. Connect the LINE terminal of the
ohmmeter successively (stopping
hand cranking while connecting test
lead between each tests to each plug
contact pin carrying a wire.
i. Concurrently with step h connect the
Meter reading of 100
GROUND terminal to each of the other
megohms or higher
plug contact pins connected to wires,
must be obtained for
repeating d of step 1 for each wire.
each test.
Perform 36 separate tests until all
wires have been tested with respect
to each other.
5
Observe Warning in step 1 above.
Check insulation resistance of cable
W41 (fig. 6-13) as follows:
a. Connect the GROUND terminal
8-7
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