Wire Harness Overview

The wiring harness (circuit group) provides the overall service equipment for a certain load source group, such as trunk lines, switching devices, control systems, etc. The basic research content of traffic theory is to study the relationship between traffic volume, call loss and harness capacity. Wire harness is an important basic concept in traffic theory.

The load source is the service object of the wire harness, which usually refers to the user equipment; in a broad sense, the upper-level equipment is the load source of the lower-level equipment. In telephone communication, the load source is also called the voice source, and the number of service devices contained in the wire harness is called the capacity of the wire harness. Figure 1 is a schematic diagram of the wire harness. This harness has a capacity of V and it serves N load sources. Any load source making a call can occupy an idle service device in the harness.