The strong construction and easy-to-use features of the Fluke Networks 990 DSL tester provides technicians the vision to build, repair, install, and maintain OSP systems. Equipped with one-button POTS Auto-Test, this Broadband loop tester quickly notes the connection status before and after the work is complete. This Fluke Networks cable taster features a unique TDR Auto-Test to identify the source of broadband interference and impulse noise. The Copper Pro series Fluke Networks 990 DSL tester packs all the test, analysis, and troubleshooting capabilities such as DCV and ACV measurement, Resistive fault location (Wheatstone and K-Test), etc. This Broadband loop tester can also be used in conjunction with back office systems that enables maintenance and updating of test results in loop databases. With included metallic testing, this Fluke Networks cable taster tests voltage, resistance, balance, and noise.