The JDSU SmartClass Home Tester SC Home ATT1 handheld service meter enables verification of VDSL and HPNA networks as well as the internal wiring at the customer premises for proper operation of voice, video, and data services. It's used to test VDSL to the side of the premise, HPNA inside the premise, as well as the coax and twisted pair wiring inside the subscriber’s location. It provides an easy-to-use, accurate, and economical measurement tool for service technicians installing or troubleshooting triple-play services over existing or new networks.