General Cabling Product selection principle and engineering application

The integrated wiring system is the transmission network in the building or the architectural complex, it is the Line foundation of the computer network. It connects voice to data communication devices, switching devices, and other information management systems, and also connects these devices to external communication networks. Following, on the integrated wiring selection principle, market (brand, manufacturer, positioning) angle and engineering application angle three aspects to discuss:

General cabling system can be divided into six subsystems

(1) Working area subsystem: The connection of the terminal equipment connected to the information outlet, it includes the information socket, jumper;

(2) Horizontal wiring SUBSYSTEM: It is the part that the trunk subsystem extends to the user's work area;

(3) Management subsystem: Made up of interconnection, interconnection and I/O;

(4) Trunk subsystem: From the main room radiation to the management subsystem part;

(5) Equipment among subsystems: from the equipment between the cable, connectors and other hardware components;

(6) Complex subsystem: a part of a building that extends a cable to a communication device in another building.

The application of optical cable

With the further development of the network, the application of optical cable is more and more extensive, many enterprises/campus network in the factory, the park erected/buried outdoor multimode optical cable, for gigabit Network and ATM network laid a solid foundation, while providing high bandwidth (10mbps-622mbps), high transmission, high anti-interference ability to support. ---http://bianceng.cn (computer science)

The core number of optical cable is divided into four cores, six cores, eight cores three kinds, according to the laying way divides into the aerial, the direct burial, according to the support distance divides into multimode (within 2km) the optical cable, the single mode (2 kilometers to dozens of kilometers) optical cable, its continuation way common is the welding, the grind, presses the connection. Commonly used optical fiber products are: fiber optic cable, fiber coupler, fiber terminal box, all kinds of interface in the form of fiber jumper, optical fiber connection equipment (fiber connector, heat shrinkable pipe, etc.).

Selection principle

(1) Performance price ratio: the choice of cable, connectors, electrical equipment should have good physical and electrical properties, and the price is moderate;

(2) Practicality: Design, select the system should meet the user in the present and the next 10-15 years to the requirements of communication lines;

(3) Flexibility: Make the information port equipment reasonable, can plug and play;

(4) Good expansibility: Use the structure and connectors that are easy to expand as far as possible;

(5) Easy to manage: there is a unified identification, convenient wiring, jumper.

Engineering Application

General wiring Engineering generally steps: Research-project design-Civil Construction-technical installation-Information point test-document collation-maintenance.

(1) Research: The main task is to inquire customer network needs, on-site survey of buildings, according to the building plan and other information to settle the amount of wire, the number of information outlets and cabinet positioning, quantity, to make a comprehensive wiring research report;

(2) Cabling scheme design: According to the prophase survey data to make wiring material budget table, the project schedule schedule;

(3) Civil Construction: coordinate the construction team and the owner to carry out the responsibility to negotiate, and put forward the wiring license, mainly drilling, walking line, information socket positioning, cabinet positioning, to do cable identification;

(4) Technical installation: The main is to play information module, playing with wiring racks, cabinet internal installation;

(5) Information Point test: General testing, the use of 12-point tester, single can be carried out, high efficiency, the main test break, deep testing can usually be used in the United States Fluke DSP-100 Cable tester, according to the TSB-67 standard, the wiring diagram (Wire map), Length (lengths), Attenuation (attenuation), near-end Crosstalk (NEXT), propagation delay (propagation Delay) Five aspects of data testing, can print out a detailed test report;

(6) Document management: Finally to provide customers with the completion of the report (material actual dosage sheet, test report, floor (building) wiring table for future maintenance to provide data basis;

(7) Maintenance: When the line fails, rapid response.

With the unprecedented upsurge of the domestic network construction, the integrated wiring system not only mentions the user's agenda, but also develops rapidly, along with an intelligent building springing up, users in the choice of wiring products should fully consider their own program needs, choose the real suitable for their products.