The SunSet T10 provides the features of seven analyzers in one simple solution for all your T1 testing requirements - from basic transmission and BERT testing to frame relay, voice, ISDN primary rate, GR-303, HDSL, SS7, Datacom, and DDS. At two pounds, the SunSet T10 gives you the flexibility to bring this full testing capability wherever you need to go. It features dual transmitters and receivers for drop and insert and bi-directional monitoring; NiMH battery providing over 3 hours of battery operating time; built-in microphone/speaker to verify voice path and quality; and bright LEDs to show the status of both lines simultaneously. PCM CIA cards provide instant software upgrades or new software options without factory installation.