Although capacity is expanding throughout the network, mobile backhaul is where growth is occurring the fastest. Mobile backhaul refers to the part of the network that connects the cell site base stations (also called baseband unit or EnodeB) to the metro network. With metro network spans sometimes exceeding 100 km, and mobile backhaul ranging from a few kilometers up to 120 km in length, these long distances can create dispersion issues which greatly degrade signal quality—since dispersion increases with distance. In addition, data rates now often reach 10 Gbit/s in mobile backhaul deployments; a data rate at which dispersion issues start to appear. It is therefore recommended to thoroughly test dispersion after construction or prior to upgrades.
Mobile backhaul architectures vary and can be point-to-point, ring or star. In all cases, single-ended testing with the FTB-5700 is preferable to dual-ended testing, because it requires less technicians and accordingly decreases OPEX.
Benefits of single-ended dispersion testing in different mobile backhaul architectures
Single-ended testing of multiple links from one location—for fewer truck rolls and reduced operational expenses (OPEX)
Standards-compliant approach
Get right results the first time thanks to a single-button operation
Fully automated, highly intelligent interface
From the no.1 vendor by market share for CD and PMD testing, based on Frost & Sullivan 2014 FOTE study
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