What is a multiplex system primarily composed of?

A multiplex system is primarily composed of multiple duplex channels. In telecommunications, multiplexing is the technique that allows multiple signals to be transmitted over a single communication channel. Duplex channels allow for simultaneous two-way communication, meaning that data can be sent and received at the same time on the same channel. This capability is crucial in emergency medical services (EMS) operations because it enables efficient communication between dispatch, responders, and hospitals without delay, improving coordination during critical situations.

The design of a multiplex system enables it to maximize the use of available bandwidth and reduces the number of physical lines needed, which is beneficial in emergency scenarios where time and resources may be limited. By using multiple duplex channels, information can flow smoothly and efficiently among various entities operating within the emergency response framework.