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JRC POWER SUPPLY CBD-1832 is a power supply module used in JRC marine radar/navigation equipment. Specifically, it’s a power supply unit inside the system that provides and regulates electrical power to the radar’s internal electronics.
It converts the ship’s incoming AC power (e.g., 110V/220V) into the correct DC power and voltages needed by the radar/navigation processing units.
It supplies stable power to various internal boards and modules, such as the main processing electronics and display units.
It typically has switch and breaker settings (NOR/ON, voltage select 110/220V) to match the ship’s electrical system and ensure proper output.
Part name: CBD-1832 Main Power Supply Unit
Application: Power supply module for JRC navigation/radar system processing units (e.g., NCM-860A in JAN-701B/901B).
Role: Converts the ship’s electrical power into the internal voltages required by the radar/ECDIS system and distributes power to various subsystems.
AC Input: Allows connection from ship’s main power (designed for standard vessel electrical systems).
Voltage Select: Switchable between 110 V and 220 V AC input, set according to ship mains.
AC Input Cable: Input supply from the ship through a terminal block (TB801).
CBD-1832 supports multiple outputs for internal system power:
AC Output to Monitor Unit:
Feeds AC supply to the radar/ECDIS monitor (for displays).
AC Output to ATX Power Supply:
Provides AC to the internal ATX power supply board inside the main control unit.
DC Outputs:
Supplies DC power (via DC output cable) to the backplane motherboard and other internal boards (such as +5 V and +12 V rails through downstream circuits).
Slide Switch:
NOR = Provides power only when the operation panel is ON.
REM = Supplies power continuously (used for remote/standby power).
Breaker:
Local ON/OFF breaker for AC main input.
Power Fail Alarm (PWR_ALM):
If AC input fails but DC24 V backup present, the unit signals PWR_ALM back to the operation panel.
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