Identify the speaker wire. This wire is usually color-coded and labeled as the speaker wire in the intercom system's wiring diagram. Locate the corresponding speaker wire in the other intercom unit. It will have the same color and label as the speaker wire in the first unit. Strip the ends of both speaker wires to expose the copper strands.. A 4-wire intercom wiring diagram typically consists of the following components: Power Supply (P): This wire provides power to the 2 way intercom system. Video (V): This wire is responsible for transmitting video signals between the master station and sub-stations (if the intercom system includes video capabilities). Audio (A): This wire is responsible for transmitting audio signals between.
Intercom System Schematic Diagram. An intercom system schematic diagram is a visual representation of the interconnected components and circuits used in an intercom system. It illustrates how the system functions and allows technicians and engineers to understand and troubleshoot the system.. When it comes to understanding the wiring.. The wiring diagram for a 4-wire intercom system is a crucial component to ensure proper installation and functionality. It provides a visual representation of how the wires should be connected to the various components of the intercom system, including the master station, substation, doorbell, and power supply..