PRINCIPLES OF OPERATION
This section covers the principles of operation for the RT-1523 series of radio sets and ancillary equipment.
RT-A designates bottom RT in VAA, and RT-B designates top RT in VAA
DC POWER INPUT AND DISTRIBUTION.
Battery Power for Manpack Radio. The primary battery, BA-5590/U (non-rechargeable), BB-590/U
(NiCad, rechargeable), or BB-390 (Nickel Metal Hydride, rechargeable), is used to provide power. These
batteries are used to provide 10.5 to 15.5 V dc through the system connector (P1) on the back of the RT
Battery box CY-8523 series is provided to hold the battery to the RT.
Vehicular Power. The vehicular battery provides an input voltage that may vary from 22 to 32 V dc. The
battery is connected to the mounting base by a power cable. In some vehicles, the cable is connected
to a terminal block which is connected to the battery.
Power Distribution in Mounting Base (MB) MT-6352 Series. The 22 to 32 V dc enters the MB on pin
B of connector J1 and is wired to pin B of J2, J3, and J4. Connector J2 is the power out connector and
provides 22 to 32 V dc to either a PA mount or other peripheral equipment. Connector J3 or J4 supplies
22 to 32 V dc to be used by the LS-671 loudspeaker and intercom.
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