采用ISO 7240-18:2009，以规定与构成火灾探测和报警系统一部分的传输路径相连的输入/输出设备的要求、测试方法和性能标准，并用于接收和/或传输火灾探测和火灾报警系统和/或消防系统运行所需的信号。

Adopts ISO 7240-18:2009 to specify requirements, test methods and performance criteria for input/output devices connected to a transmission path forming part of a fire detection and alarm system and used to receive and/or transmit signals necessary for the operation of the fire detection and fire alarm system and/or fire protection system.