Composition of structured cabling systems

User subsystem: A User subsystem consists of a connection between a terminal device and an information outlet. It consists of a connector and an adapter.

Horizontal subsystem: connects the information outlet and Management Subsystem wire jumper. This type of connection is usually achieved by five or more 8-Core 4-pair twisted pair wires.

Management Subsystem: The management subsystem is composed of a connecting and connecting distribution frame. The management point provides a means to connect to other subsystems. Communication and interconnection allow the communication lines to be located or relocated to different parts of the building, so as to facilitate the management of communication lines, so that mobile terminal devices can be easily plugged in.

Backbone subsystem: implements the connection between the control center and various management subsystems by using computer devices and Programmable switch PBX. Common media are large pairs of twisted pair cables and optical cables.

Device subsystem: The device room subsystem consists of cables, connectors, and supporting hardware in the device room. It connects various devices in the public system. This subsystem connects the trunk line and the wiring intersection with public system devices such as PBX.

Building Group subsystem: Implements interconnection between buildings. Commonly used communication media is optical cables or logarithm. optical cables or logarithm are used between the main line and the building group.

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