Armstrong system的意思|示意

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Armstrong system, also known as AS, is an intercom system introduced in the 1920s. It is mainly used in public places such as schools, hospitals, factories and offices to achieve the goal of transmitting short messages. The system consists of five parts: the master controller, the subcontrollers, the connections, the callers and the receivers.

The master controller is the main component of the system, it is responsible for the overall control of the system. It can send out messages and control the callers and receivers. The sub controllers are components that connect to the main controller. They can adjust the volume and frequency of the message being transmitted. The connections are the wires and cables that connect the controller to the callers and receivers.

The callers are the devices that are used to transmit the messages. They can be pendant microphones or wall-mounted speakers. The receivers are the devices that receive the messages and respond accordingly. They can be bell ringers, buzzers or alarms.

Armstrong system is an effective way to communicate information quickly and conveniently. It is widely used in many public places, and it is also a useful tool for emergency response.