TM 11-6625-648-12
Control, switch, indicator
Function
or connector
BATTERY POWER switch . . . . . . . . . . . . . .
Pull on position applies dc power to the TS-1323/PTM-7.
PUSH OFF position removes power from the test set. If operator fails to remove
power from the TS-1323/PTM-7, BATTERY POWER switch should automatically
move to the off position when the cover is secured.
READ button . . . . . . . . . . . . . . . . . . . . . . . . .
measurement on the CX-4245/G.
EARTH GRD binding post . . . . . . . . . . . .
For earth ground.
3-2. General Operating Procedures
to OFF). The TD-204/U and TD-754/G AC power
switch should be left at ON to permit com-
Before using the AN/PTM-7, perform the weekly
munications over the order-wire circuit. When the
test location is reached, drive Grounding Rod
d e t e r m i n e that the AN/PTM-7 is operating
MX-148/G into the ground, and connect a groun-
properly. Obtain all available data on the nature and
ding cable or wire between the MX-148/G and the
approximate location of the fault from the operator
AN/PTM-7 EARTH GRD terminal before
or organizational maintenance technician at the
proceeding with any tests. Figure 3-3 illustrates a
attended station. Be sure the operator has removed
typical link configuration during testing with the
power from the faulty link (TD-204/U CABLE
AN/PTM-7.
POWER or TD-754/G CABLE CURRENT switch
3-4
Change 5