optical mux

Since the 1990s, Wavelength division multiplexing (WDM) has been deployed on a large scale in telecommunications networks, and the system's transmission capacity has increased by one times every 12-18 months. However, the control and management of optical networks remain in the traditional sense of SDH networks: The optical layer is simply a simple transport medium in the network, and its main function is t

The metropolitan area Optical cable line is mainly the pipeline optical cable, supplemented by the aerial and other laying way very few optical cables, its characteristics are: The line section is relatively short, can be divided into local trunking, user access network backbone and user to introduce optical cable,

system. They can be achieved through coaxial cable, optical cable, wireless or microwave. The video transmission system is the system's image signal path. A sound video transmission design is a very important part of the video monitoring system. If a well-built system selects cameras, lenses, monitors, and video recorders that can produce or process high-quality images, but does not have a good transmission system, eventually, the images seen on the

With the rapid development of broadband multimedia service and optical fiber communication technology, optical fiber communication technology has been used more and more widely in the access network. In the past, optical fiber network is mainly to meet the needs of transmission network construction, access to the layer of fiber optic cable needs less, a small num

SDH optical interfaces are very important in programmable switches. Here we mainly introduce the design concept of SDH optical interfaces of programmable switches. With the rapid development of modern telecom networks, the synchronous digital transmission system SDH has become the dominant Transmission Mechanism of telecom networks. SDH-based transmission networks have gradually become the dominant directio

Introduction to the selection of optical cables for indoor integrated cabling In the Integrated Wiring System, the optical fiber cables are upgraded between floors in the vertical system, the communication cabinets are used in small spaces, and the optical fiber cables are used on the desktop, communication applications that travel through high-pressure inflat

Absrtact: This paper describes the colorful situation of optical network world, expounds the core technology of each series of optical Network, discusses the adaptation of optical network products to IP service, and puts forward the fusion node and intelligent Optical Network technology. Key words: Synchronous Digital

A virtual optical drive is a tool for simulating (CD-ROM) work, can be generated and your computer installed on the same optical drive can be the same virtual CD-ROM drive, the general optical drive can do the same thing as a virtual CD-ROM can do, this principle is to first virtual out of one or more virtual optical d

In recent years, with the explosive growth of IP business volume, China Telecom is beginning to develop towards the next generation of Sustainable Development. Building a fiber-optic infrastructure with huge transmission capacity is the physical basis of the next generation of networks. The traditional G.652 single-mode optical fiber has been unable to meet the above-mentioned development needs of ultra-high-speed long-distance transmission networks.

A friend of the author works in China Telecom and is mainly responsible for the fiber optic business of China tietong. At a recent meeting, he told me about several failures encountered during Optical Fiber maintenance. The author selects two of the most representative introductions for readers, I hope you will learn from the article and reflect on the whole process of solving the problem. Fault 1: multiplexing segment codes caused by SDH and their ha

Currently, the access network technology is widely used, and the access network technology is also very commonly used. So I have studied the problems related to the access network technology construction planning and practical application. I will share with you here, I hope it will be useful to you. With the rapid development of broadband multimedia services and optical fiber communication technology, optical