At present SDH network equipments apply more and more widely in Qinghai electric power system.

SDH system simulation platform will carry out the underlying transport mechanism about SDH effectively by simulating SDH equipment prototype,and then reproduce the process of data transmission and the production of a network failure.

Research on SDH network optimization in power telecommunication network;

SDH network can provide multi_service provisioning platform for data network.

The protector structure of light path is introduced, and a new scheme of the protector in SDH network of Zhejiang broadcasting is proposed.

Management and application for network equipments in LAN technology;

Describes briefly that the main method of how to do the external contract for the maintenance of network equipment,the primary points which should pay attention to and the great effect to the hospital s information technology.

This paper introduces some matters about managing computer network equipment in hospital from purchasing equipment, storing spare equipment,manageria duty, power supply, inspecting termly, arranging maintenance man etc.

New method and equipment for production of hardware components for network device

This paper briefly expounds the functions and working principles of concentrator and exchanger,and introduces the types and patterns of cascading and stacking of network devices and the differences between cascading and stacking.

With the fast development of the Embedded and network technology, Embedded communication network devices such as PDAs, smart phones and mobile phones etc, have become more and more popular.