توضیحات :
NFPA 297 – Guide on Principles and Practices for Communications Systems
۱۹۹۵ Edition
Chapter 1 Introduction
۱-۱ Scope.
۱-۱-۱ This guide deals with systems and their components and operations that involve the transfer of information over a distance utilizing electrical or electronic means. It is intended to provide general information only. More specific technical data should be secured from manufacturers or communication specialists in state, provincial, or local governments.
۱-۲ Purpose.
۱-۲-۱ The need for reliable communications has long been recognized in the fire service. This guide focuses on four basic elements in the communications requirements of a fire department. Included are communications between the public and the fire department; communications within the fire department under emergency and nonemergency conditions; communications among fire departments; and communications between the fire departments and other agencies.
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