(except aircraft carriers), and fog-foam injection
Auxiliary Circuits
stations (aircraft carriers only).
Most ships have auxiliary circuits, which duplicate
primary circuits. The wiring for the auxiliary circuits is
CIRCUIT 5JZ provides communication between
installed as far away as possible from the wiring for the
Repair 3 and DCC, secondary DCC, after battle
primary circuits. This helps to minimize the danger of
dressing station, each unit patrol station associated
both the primary and the auxiliary circuits being placed
with Repair 3, remote-operated valve control stations
out of commission at the same time. An X in front of
aft of the engineering compartments, fire pump
the circuit designator identifies auxiliary
controllers (except aircraft carriers), and fog-foam
sound-powered circuits. Examples of auxiliary circuits
injection stations (aircraft carriers only).
are X2JZ and X1JV.
CIRCUIT 6JZ provides communication between
Supplementary Circuits
Repair 4 and DCC, secondary DCC, amidship battle
Supplementary circuits are primary circuits as
dressing station, each unit patrol station associated
related to their principal functions. However, when the
with Repair 4, remote-operated valve control stations
circuit is also used for damage control
amidship, fire pump controllers (except on aircraft
communications, the circuit is considered as a
carriers), and fog-foam injection stations (aircraft
supplementary circuit. The following primary circuits
carriers only).
are examples of supplementary circuits when they are
CIRCUIT 7JZ provides communication between
used for damage control purposes.
Repair 5 and DCC, secondary DCC, engine rooms,
CIRCUIT 3JG provides communication between
firerooms, and each unit patrol station associated with
such stations as primary and secondary fly control,
Repair 5.
flight and hangar deck control stations, each aviation
CIRCUIT 8JZ provides communication between
lubricating oil station on the hangar and the gallery
Repair 8 and DCC, secondary DCC, primary and
deck walkway, flight deck crew shelters, and the
secondary fly control, auxiliary fly control, and each
lubricating oil pump controllers.
unit patrol station associated with Repair 8.
CIRCUIT 4JG provides communication for the
s u p e r v i s i o n o f t h e va r i o u s e l e m e n t s o f t h e
CIRCUIT 9JZ provides communication between
high-capacity aviation gasoline and JP5 system.
forward Repair 6F and DCC, secondary DCC, gunnery
Communication facilities are provided between such
control station, remote sprinkling control station, and
stations as flight deck control station, DCC, secondary
each manual sprinkling valve control unit.
DCC, forward and after gasoline pump and control
CIRCUIT 10JZ provides communication between
rooms (or gasoline control rooms), and aviation
after Repair 6F and DCC, secondary DCC, gunnery
gasoline filling stations.
control station, remote sprinkling control stations, and
CIRCUIT 1JV is the maneuvering and docking
each manual sprinkling valve control unit.
circuit. This circuit provides communication between
CIRCUIT 12JZ provides communication for the
the pilot house, open bridge, secondary conn, DCC,
operating orders for fire pump control and the
engine rooms, emergency stations, steering gear
maintenance of firemain pressure in the event of
rooms, gyro rooms, standard compass, fog watch
damage. Communication facilities are provided
forward and aft, and each line handling and
between such stations as DCC, secondary DCC, each
transfer-at-sea station.
conflagration station and hangar deck lighting control
CIRCUIT 2JV is the engineering circuit for main
station, and the controllers for each fire pump.
engines. This circuit provides communication between
DCC, each propulsion engine throttle station, auxiliary
CIRCUIT JA is the captain's battle circuit. This
machinery room, refrigerating machinery room,
circuit provides communication between such stations
air-conditioning machinery room, each shaft alley, and
as the open bridge, pilot house, captain plot, secondary
Repair 5.
corm, combat information center (CIC), gunnery
control stations, antiaircraft stations, weapons control
CIRCUIT 3JV is the engineering circuit for
center, fire control plotting rooms, DCC, secondary
boilers. This circuit provides communication between
each boiler operating station, each main feed pump and
DCC, and flag plotting station.
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