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UL Standard for Safety General-Purpose Signaling Devices and Systems (Second Edition; Reprint with Revisions through and Including October 13@ 2009)
1. Revision to Correct Audibility Test Method to Require Two Reflecting Planes
Standard for General-Purpose Signaling Devices and Systems
This standard applies to all factay-made equipment as defined in the following standards which also meet the requirements of 3.4 and are labeled
Unit Ventilators
This standard specifies in addition to the requirements specified in EN 50136-2-1, the requirements for equipment used in alarm transmission systems
Alarm systems - Alarm transmission systems and equipment - Requirements for equipment used in systems using dedicated alarm paths
이 규격은 지형적으로 널리 분산된 프로세스의 감시와 제어를 위한 암호화된 비트 직렬 데이터
Telecontrol equipment and systems-Part 1:General considerations-Section one:General principles
Terminating and Signaling Equipment for Microwave Communication Systems Part I: Telephone Equipment
Cable trunking systems and cable ducting systems for electrical installations - Part 1 : general requirements
Alarm systems - Alarm transmission systems and equipment - Part 1-1: General requirements for alarm transmission systems; German version EN 50136-1-1:1998 + A1:2001 + A2:2008
Railway fixed equipment. Modular power supply for systems of signals equipment, telecommunication equipment and computer equipment. Tertiary system.
Diese ?NORM legt Mindestanforderungen hinsichtlich Dimensionierung und Ausführung von lüftungstechnischen Anlagen bei Verwendung als
Ventilation and air conditioning plants -Fire-smoke extract Systems
Electroacoustics. Sound sistem eguipment. General
本标准规定了水文自动测报系统通用设备的产品分类与组成、型号命名及要求、试验方法、检验规则以及包装、标志、运输、贮存。本标准适用于各种水文自动测报系统通用设备(以下简称水文遥测设备)的研发、设计、生产、测试、使用及相关产品标准编制等
Automatic system for hydrological data measuring and forecasting.General equipment
本章主要规定在线电接力站中,使两台或两台以上接收机能适用于分集接收的分集设备的测量。因此,虽然测量可能涉及到分集通道设备即发射机、接收机、调制器、解调器等。但本章假设分集设备仅包括倒换和/或合并分集通道的电路,而不包括分集通道设备本身。 由于本系列标准第二部分第二章"备用通道倒换设备"中
Methods of measurement for equipment used in terrestrial radio-relay systems--Part 2: Measurements for sub-systems--Setion 6:Diversity, twin-path and hot stand-by equipment
UL Standard for Safety General-Purpose Signaling Devices and Systems (Second Edition; Reprint with Revisions through and Including October 13@ 2009)
1. Revision to Correct Audibility Test Method to Require Two Reflecting Planes
Standard for General-Purpose Signaling Devices and Systems
This standard applies to all factay-made equipment as defined in the following standards which also meet the requirements of 3.4 and are labeled
Unit Ventilators
This standard specifies in addition to the requirements specified in EN 50136-2-1, the requirements for equipment used in alarm transmission systems
Alarm systems - Alarm transmission systems and equipment - Requirements for equipment used in systems using dedicated alarm paths
이 규격은 지형적으로 널리 분산된 프로세스의 감시와 제어를 위한 암호화된 비트 직렬 데이터
Telecontrol equipment and systems-Part 1:General considerations-Section one:General principles
Cable trunking systems and cable ducting systems for electrical installations - Part 1 : general requirements
Terminating and Signaling Equipment for Microwave Communication Systems Part I: Telephone Equipment
Alarm systems - Alarm transmission systems and equipment - Part 1-1: General requirements for alarm transmission systems; German version EN 50136-1-1:1998 + A1:2001 + A2:2008
Railway fixed equipment. Modular power supply for systems of signals equipment, telecommunication equipment and computer equipment. Tertiary system.
Diese ?NORM legt Mindestanforderungen hinsichtlich Dimensionierung und Ausführung von lüftungstechnischen Anlagen bei Verwendung als
Ventilation and air conditioning plants -Fire-smoke extract Systems
Electroacoustics. Sound sistem eguipment. General
本标准规定了水文自动测报系统通用设备的产品分类与组成、型号命名及要求、试验方法、检验规则以及包装、标志、运输、贮存。本标准适用于各种水文自动测报系统通用设备(以下简称水文遥测设备)的研发、设计、生产、测试、使用及相关产品标准编制等
Automatic system for hydrological data measuring and forecasting.General equipment
本章主要规定在线电接力站中,使两台或两台以上接收机能适用于分集接收的分集设备的测量。因此,虽然测量可能涉及到分集通道设备即发射机、接收机、调制器、解调器等。但本章假设分集设备仅包括倒换和/或合并分集通道的电路,而不包括分集通道设备本身。 由于本系列标准第二部分第二章"备用通道倒换设备"中
Methods of measurement for equipment used in terrestrial radio-relay systems--Part 2: Measurements for sub-systems--Setion 6:Diversity, twin-path and hot stand-by equipment