Main details of the project design of Big Data wave sub-transmission engineering

Main details of the project design of Big Data wave sub-transmission engineering

The big Data era has been for several years, wave-sub-transmission by more and more people use, even some backbone network transmission has been inseparable from the wave-point transmission. With more people, norms are many, so some engineering design is also plagued by more and more people, today I will share with you, wave sub-transmission in the early stages of the project needs to know what the engineering information, technology God look good, for beginners only reference.

1. What is the type of data transmitted throughout the WDM system?

This is because the CATV Business and the PON Service cannot be transmitted in the wavelength division. So first of all to understand this, otherwise white busy.

2. is the transmission link a single fiber or a double fiber?

The single and double fibers determine the model and number of the Wave channel.

3. How many kilometers is the entire transmission distance? Is there a relay station?

Can estimate this wave sub-transmission engineering can do it, if there is no relay station, distance is very far away.

4. What is the distance between each site, and what is the measured attenuation value of the line?

In the case of a relay station, to understand how far each site is, with the DCM dispersion compensator to use, the measured data between each site is how big, so with EDFA Fiber Amplifier when you can use.

Must be measured data, because the fiber age is different, the production of different manufacturers, simply by the number of indicators to calculate there will be a great difference , will directly affect the selection of EDFA fiber amplifier, resulting in the entire link does not come.

5. do you want to go up and down business between sites?

If the adjacent or cross-site to the next business, you need to configure the central station OADM WDM System, convenient up and down the business.

6. How many waves of traffic will be transferred to the entire link? How big is the single wave rate?

40 wave device or 16 wave equipment, is very good choice. The single wave rate determines the otu wavelength converter selection, What is 2.5g or Span style= "font-family: ' Times New Roman ';" >4.25g 10g.

7, CWDM coarse wave or DWDM Span style= "font-family: ' The song Body '; > dense wavelength transmission, whether to take into account the expansion of the wave channel?

CWDM Coarse wave can only transmit The waves, and can not be amplified with EDFA , so the coarse wave is small capacity short distance of the wave sub-transmission, it is really to transmit long distance is not, to each segment of the addition oeo Fiber relay regeneration, the cost up. More words will be used DWDM dense wave points, of course , DWDM dense wave points can also be small-capacity wavelength transmission, more crucially, he can use EDFA fiber amplifiers, which are widely used in ultra-long wavelength transmission, are also very convenient for later expansion, and only need to be enlarged. OTU Business Board card on it, Plug and Play, quite convenient.

Big Data Wave sub-transmission engineering scheme design main details