Figure 7-5.--PACC.
of equipment monitored. The PACC is designed
PANEL (A2), and PLASMA DISPLAY KEY-
to monitor four GTEs, two MRGs, and their
BOARD PANEL (A3).
associated auxiliary systems. The SCU is designed
to monitor two GTEs, one MRG, and their
PROPULSION MONITOR PANEL (Al)
associated auxiliary systems. Where the section
The operator uses this panel to monitor and
being described on the PACC is identical to a
control the propulsion GTEs, the MRGs, and
section on the SCU, we will place an (*SCU).
their support systems. The panel is basically
Later in this chapter we describe the SCUs
divided into three sections. For ease of description
covering only the areas of the consoles that are
we will call them the CONSOLE, PLASMA
different from those on the PACC.
DISPLAY, and PROPULSION sections.
The PACC provides for centralized control
and monitoring of all propulsion engines, the
Console Section
reduction gears, the shafts, and the propellers.
The PACC also provides control and monitoring
The operator uses the console section (*SCU)
for auxiliary machinery, such as air conditioning,
to test the console audible alarms and to
chilled water cooling, potable water supply, and
monitor the console power supplies. It has four
the firemains. The control of the propulsion
momentary-contact push buttons, a rotary control
engines and propulsion auxiliaries is normally at
switch, and two LEDs.
the PACC when the ship is underway. The PACC
The four momentary-contact push buttons are
(fig. 7-5) on the DDG-51-class ship is divided
located horizontally under the heading AUDIBLE
into three panels (*SCU), PROPULSION
ALARMS TEST and are labeled SIREN, HORN,
MONITOR PANEL (Al), THRUST/AUXILIARY
BELL, and BUZZER, respectively. The operator
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