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 TM 55-1905-219-14-1
1-83.
INTERIOR COMMUNICATION EQUIPMENT (Cont).
a. Ten sound-powered telephone headsets are provided. Nine sound-powered telephone handsets are
provided. Headsets and handsets comply with Military Specification MIL-T-15514. Jackboxes are type G15A. Sound
powered telephone handset holders Type Z-33B are provided for the headset in the Pilot House. Headset lockers are
provided for all other headsets.
b. Each machine gun station is provided with a Type 1C/H8S4 horn for cease fire signaling. The horns are
powered by the cease fire switch located in the Pilot House on the Starboard bulkhead. The power supply is 120 volt AC
single phase from the IC distribution panel L-107.
c. The Type IC/S alarm system monitors a number of shipboard functions. In case of a malfunction it sounds an
audible alarm. The major components of the alarm system are an alarm panel, the sensing devices, and wiring and
junction boxes. The alarm panel is located in the Pilot House next to the chart table. The sensing devices are installed at
a location where they can monitor a specific function. Power is supplied to the alarm panel from distribution Panel L-107.
The sensing devices are connected to a junction box in the Forward Engine Room. These circuits and the other sensing
devices are connected to the alarm panel through a junction box in the Ordnance Stores. The circuit breaker for the
gyrocompass circuit is connected to the alarm panel.
d. The Type AN/PIC-2 Public Address Set is a portable battery-powered megaphone with external power cable
and case. The unit uses its own dry cells. It may also use an external 12-volt battery using the external power cable.
The megaphone is powered by pressing the trigger switch on the pistol grip handle.
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