Employ lateral further improvement with fiber optics telecommunication in the electric system, fiber optics telecommunication has already to replace microwave, Power Line Carrier PLC become inevitable. This text takes fiber optics telecommunication backbone network of the southern electric wire netting as examples, introduce the current situation in respects such as electric system special optical fibre, communication power, parameter matching and business changeover,etc., analyze the existing problem, and put forward the problem solving measure and thinking on this basis. ... Read more
OPWILL Company releases the location OTM2515 SDH of single trough to test the module, module of this test is suitable for OTP6200 platform, can realize PDH/DSN and SDH/SONET test the function. OTP6200 OTM2500 can support 155M mere interface, 155M SDH electric interface and 1.5M/2M/34M/45M/140M PDH electric interface test, can finish the intersection of SDH and the intersection of network and regular maintenance test such as expenses catch and intelligence scan and ring go back delay test and indicator monitor adjustment, passway scan. ... Read more
In early morning, the bell of giving the correct time sounds, the window is opened slowly, the curtain is lifted automatically, the water heater has already got ready and washed the hot water gargled. Go out after breakfast, take out the remote controller, ” A key is closed ” ,The family electric apparatus ” The dormancy ” ,The system of Ann dyke opens, the carry-on mobile phone ” Control ” Everything burning in the family. ... Read more
A friend of mine works in telecommunications, is mainly responsible for the optic fibre business of China Railcom. He told me about the trouble that several mere fibers meet when protected at a party recently, I select two to have the introducing to every reader of representatives most from it, hope everybody can reap from the article to some extent, and review the whole course of solving the problem. ... Read more
1. Sum up and have no necessity which block communication ... Read more
The appearance of PTN is to only convey network technology and develop the inevitable outcome under the environment of communication realistic network and business of service provider. Ideal that imagine at first convey network only IPoverWDM whether IP divide into groups until simple encapsulation right to buy building up above the intersection of light and layer of intelligence directly in scheme, right to mix one layer of functions and try hard to simplify, thus is limited within the range of interface signal form, until the unified control level is at all aspects ‘ Grouping, circuit, wavelength, wave tape, optic fibre,etc. Realize the most high-efficiency scheduling of resource of bandwidth of optic fibre. Very early already clear goal this, but maturity of technology its remain time also. ... Read more
Scheme summary ... Read more
For many years, bear the weight of the network and adopt and reply and bear the weight of the business with SDH technology and WDM technology based on that the wave is divided and replied and used of TDM on the basis of the time, basically bear the weight of on the edge of the network through IP router or by way of exchanger of the network very much as to the grouping business in the network, its Internet business that bears the weight of much grouping business and comes from the single type, does one’s best. With the development of IP technology and broadband network, the pronunciation, video, data based on IP are treble to broadcast the extensive concern that the business has caused operator and user. Satisfy multiple to broadcast business, need, build based on IP unified key network future. Bearing the weight of conveying the network to require that be able to support lasting portfolio growth economically of business, especially the growth of IP data business, must have high QoS and function of the business usability, can meet the edge of the network to esthesia and control ability of the business, can meet the requirement for security. With technological gradual progress and IP change of the telecommunication service, conveying the network must meet transition and development of the business of upper strata as bearing the weight of the network of the foundation, show convey apparatus from ” The interface adaptability of dividing into groups ” Turn towards ” The kernel adaptability of dividing into groups ” Gradual progress. ... Read more
Summary: This text has analyzed the development trend of the access network, especially VIP customer’s special network, and done detailed exposition on 3E solution of new generation that the beacon network Co., Ltd. of Wuhan put out for agreeing with the development trend of access network. ... Read more
