Broadband Communities

AUG-SEP 2017

BROADBAND COMMUNITIES is the leading source of information on digital and broadband technologies for buildings and communities. Our editorial aims to accelerate the deployment of Fiber-To-The-Home and Fiber-To-The-Premises.

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AUGUST/SEPTEMBER 2017 | | BROADBAND COMMUNITIES | 45 distribution boxes or distribution frames need to be purchased and installed. In most cases, floor-level or buddy boxes have to be bought and positioned on separate floors. It is not uncommon for operators to spend many thousands of dollars on equipment for an apartment building before signing up a single subscriber. However, in most cases, this method proves to be more economical than a P2P approach over the medium to long term. TAKING THE CABLE INSIDE To get fiber into a premises, a cable has to be routed from the point of presence (the outside distribution box, in this instance) into the building through the wall and plugged into a further distribution box or distribution frame in the basement or a communications (comms) room. ere are a number of benefits to having a fiber distribution point inside a building. First, the network life cycle is longer because network elements are better protected. Fiber terminals and other passive equipment are no longer at risk of being damaged by harsh weather, negligence or vandalism. Second, it speeds up the whole process of installation. Network operators commonly route fiber cable from the basement of an apartment or office building up to floor boxes on each landing. is allows operators to break out fiber quickly and cost- effectively when a resident demands it. Whether the network architecture is PON, point to point, or some other configuration, once the fibers have been brought to the distribution frame (or, for small MDUs, the distribution box), they need to be connectorized. Operators increasingly use pre- terminated cable in multiple-dwelling installations to remove weak spots, limit the requirement for highly trained engineers and reduce installation times. FIBER TO THE FLOOR A crucial step every installer negotiates during fiber cable installation in an apartment building or a multistory office building is to decide on the most appropriate way of getting the fiber cable from the basement to each floor. In new-build apartments and commercial buildings, this process can often be fairly straightforward – especially if the architect has designed the building with fiber in mind and included a microduct. For the network operator, the key step is deciding on the best method of getting the cable to each floor, whether that's by blowing, pushing or pulling the fiber cable from the basement to each floor. Blowing fiber. ough blown fiber is a tried and tested method, it's not necessarily optimal for in-building deployments. Heavy, gasoline-powered compressors are not always suited to basement applications. In addition, some developers may simply not allow compressed air, which might carry dirt and water, to be blown into their buildings. e key advantage of blowing, though, is distance. Because blown fiber has an installation distance of up to 3,000 feet, in some high-rise scenarios it may be the only realistic choice. Pullable fiber cable. One of the biggest advantages of pullable cable is cost. is method requires minimal extra equipment and has a proven track record in most regions. However, it can be a labor-intensive process PROS AND CONS OF DIFFERENT FIBER INSTALLATION METHODS

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