Product Code:SAE J1849
Title:Emergency Vehicle Sirens
Issuing Committee:Emergency Warning Lights And Devices Standards Committee
Scope:This SAE Recommended Practice provides laboratory test procedures, requirements and guidelines for electronic siren systems with a single loudspeaker, and electromechanical sirens for use on authorized emergency vehicles, which call for the right-of-way. This document is applicable only to such sirens that have all dimensions across the sound-emitting opening equal to or less than 0.5 m. Test procedures and performance requirements for individual system components are not included in this version.Data obtained from measurements of siren performance depend not only on the characteristics of the siren tested, but additionally on the test procedures and the characteristics of the measurement instrumentation and test environment. These additional factors must be well defined and controlled to obtain reliable data. Detailed test methods are described here, which include specifications for a laboratory environment, to minimize the measurement uncertainty and obtain accurate and reproducible measurement results. Such results are necessary to qualify the performance of all sirens as equally as practicable. Requirements have been established based on the laboratory-measured performance of sirens that have been effective in emergency service.【英文标准名称】:Telecontrolequipmentandsystems.Part6:telecontrolprotocolscompatiblewithisostandardsandITU-Trecommendations.Section601:functionalprofileforprovidingtheconnection-orientedtransportserviceinendsystemconnectedviapermanentacces
【原文标准名称】:遥控设备及装置.第6部分:与ISO标准和ITU-T推荐标准相一致的遥控协议.第601节:通过信息包转换数据网络的永久入口连接端系统提供面向连接传输服务的功能剖面
【标准号】:NFC46-966-01-1995
【标准状态】:现行
【国别】:法国
【发布日期】:1995-05-01
【实施或试行日期】:1995-05-20
【发布单位】:法国标准化协会(AFNOR)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:
【中国标准分类号】:M54
【国际标准分类号】:33_200;35_100_05
【页数】:15P;A4
【正文语种】:其他