UL 1981 Ed. 2 (2003)被替代
Central-station Automation Systems
出版：Underwriters Laboratories
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基本信息
标准编号： UL 1981 Ed. 2 (2003)
标准类别：Standard
出版单位：Underwriters Laboratories
标准页数：0
标准简介
Covers computerized central station automation systems intended for use in central station, proprietary and subsidiary burglar, and fire alarm applications for the purpose of automating the signal handling and processing of change-of-status signals generated by receivers.
替代本标准的新标准
