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linescout

®

Line/Cable qualifier Managing the Crosstalk = Managing the Network

APPLICATION As telephone operators are increasing the capacity of their existing copper infrastructure for new high-speed telecommunica-tion services, network optimization and maintenance of high service quality to existing customers become major issues.New modulation techniques have made it possible to turn the copper network into a high-speed transmission medium.However, as more and more transmission systems are being deployed, network operators need reliable installation tools toachieve more efficient and effective deployment. Since crosstalk is the limiting factor against xDSL transmission performance,managing crosstalk means managing the network. This is what the Linescout
® is designed for.The Linescout
® is a Copper Pair Qualification Tester used by installation personnel in the field. The Linescout
® replaces the conventional trial-and-error method with a systematic approach. KEY FEATURES

?Measures noise and attenuation?Generates and measures crosstalk?Modular design: can be equipped with any combination of transmission signal generators (2B1Q, 4B3T, HDB3, AMI, …)?Future proof: modularity will accommodate future transmission signal generators

DESCRIPTION To qualify a pair for xDSL transmission, three questions must be answered:1.Is the noise level on the selected pair acceptable ?2.Is the attenuation (or the line length) acceptable ?3.Is the crosstalk level acceptable ?Traditionally, only questions 1. and 2. are answered, but the Linescout
® answers an additional and very important question: howwell will the installed system continue to work if the selected pair is surrounded by additional systems in the future ?Although there are several methods to answer the first two questions, the Linescout
® is the only equipment that answers allthree questions accurately and efficiently. Moreover, all DSL systems, including the earlier E1 and T1 transmission systems, arebroadband systems. Attenuation and crosstalk measurements conducted with sinusoidal signals therefore cannot accuratelyreflect the transmission behavior of these systems. The Linescout
® measures DSL attenuation and crosstalk by sendingETSI/ANSI defined DSL broadband signals to the receiver which is equipped with a range of user selectable high precisionbroadband filters to capture accurately the DSL system signal under test.