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 TM 55-1925-273-10-1
0035 00
ENGINE ORDER TELEGRAPH (EOT)
The EOT system is a 24 Vdc system used to transmit command from the pilothouse to the EOS. The EOT is used when the
pilothouse is not in control of the propulsion plant. An alarm bell sounds to notify the operator if controls are not set to
provide requested speed and direction. The power supply incorporates an internal battery charger and backup battery. Refer
to figure 2 for a simplified block diagram of the EOT.
EOS
PILOTHOUSE
BELL
BELL
PILOTHOUSE
ENGINE ROOM
TRANSCEIVER
RECEIVER
POWER
FAILURE
CONSTANT
ALARM PANEL
120 Vac
POWER
RING/WRONG
SHIP
SUPPLY
DIRECTIONAL PANEL
POWER
PORT AHEAD
ENGINE CONTROL
DIRECTION LIMIT
BATTERY
BATTERIES
SWITCH
CHARGER
PORT ASTERN
ENGINE CONTROL
WRONG DIRECTION
DIRECTION LIMIT
BELL AND LIGHT
SWITCH
PANEL
STBD AHEAD
ENGINE CONTROL
DIRECTION LIMIT
SWITCH
STBD ASTERN
ENGINE CONTROL
DIRECTION LIMIT
SWITCH
END OF WORK PACKAGE
0035 00-4
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