nscc seaman module two interior communications
DESCRIPTION
Enabling Objectives. Define the purpose and use of the various interior communications systems. Service Telephone System. Similar to dial telephone ashoreElectrically poweredCentral switchboardCan be connected while in-port for outside calls. Sound-powered Telephone System. Sound-poweredInstead of a battery, your voice provides the powerFailure of the electrical system has no bearing on the phonesPrimary battle telephone circuitsMeans of communication between selected battle stations on a9452
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nscc seaman module two interior communications
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