The link of negligence in the construction of integrated wiring in data center

In recent years, as the data center is the core of data communications and business applications, has been more and more financial, insurance, securities and the Internet and other large enterprises pay attention to the domestic has invested a large number of data center project construction. Some of the weak current system integrators from the construction of the wiring directly into the layout of the data center wiring, and for the data center of the integrated wiring construction of some of the details are particularly to be concerned about, some weak systems integrators in the construction of easy negligence of these details, resulting in poor performance or for subsequent maintenance inconvenient, This article from this aspect to the data center construction needs to pay attention to several links.

1. The dust of the negligence link

After years of experience, I found that in the data center of the integrated Wiring project, many construction personnel in the installation of fiber jumper, often easy to the optical fiber module box (generally contains MPO-LC fan out jumper) LC end of the dust cap first removed, regardless of the correct construction installation sequence, so that only for easy operation installation, But ignore the fiber-optic joints susceptible to dust intrusion, and the general construction installation environment is always unsatisfactory, so it is likely to the optical fiber testing phase, fiber attenuation will be larger, in fact, fiber attenuation is mostly the problem of dust, as long as the dust wiped clean will be no problem, The most likely to be affected by dust is the MPO-LC fiber module box, because it typically includes 2 mpo/mtp fiber connectors and 24 LC fiber connectors, the more the number, the more likely the relative dust. In fact, the most effective and efficient way to remove dust is to use high-pressure air gun blowing clean fiber connectors on the dust, but for the construction site conditions, is unlikely to be achieved. Rosenberg has developed a unique dust removal tool, you can not open the module box, directly through the adapter into the internal cleaning of the optical fiber end, dust can be eliminated, fiber attenuation test values are also installed into normal test values.

In addition to the above due to the construction process does not standardize the impact of dust, there is also a way is often caused by the attenuation of the larger reasons, and easy to ignore, that is the test link. When the test jumper continuous test process, the test light jumper end prone to dirty, the end of a dirty test jumper easily contaminated to the end of the optical fiber connector, resulting in a significant increase in attenuation. For this part, the author based on the experience suggested that the test engineer in the test process, the test jumper needs to be tested on the end of each test 3 end face need to clean the end of the test jumper on the dust-free paper, so as to avoid the impact of the test jumper caused by testing unqualified.

2. The label of the negligence link

The integrated wiring identification system in the data center is quite necessary, a data center of considerable scale, with several kilometers or even dozens of kilometers of cable and cable shuttle between racks and cabinets, there are a large number of jumpers, wiring racks, so you must accurately record the identification of each cable, each jumper, each wiring rack and each cabinet /rack. In fact, for jumpers, wiring racks and cabinets/racks To do the logo is relatively good to do, the author found that in the logo is prone to negligence on the bridge in each section of the cable, the general construction method is to arrange the cable and lashing good, also completed, basically did not have each section of cable to do detailed identification, The maximum is the logo on the ends of the line cable but the middle part of the cable is not well marked, so that the follow-up maintenance and management will leave a hidden danger, the better way is to follow the cable every 3-6 meters from the cable on the line to mark, so as to facilitate follow-up maintenance and upgrade identification, to prevent mistakes. After all, for data centers, data center expansion and upgrade is the inevitable future, so do a good job in the middle of the cable logo is particularly important.

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