The SmartClass 4800 tester enables testing on optical and electrical Ethernet links, as well as on T1 and E1 interfaces. Technicians can carry out quality of service testing for voice services regardless of whether they are delivered over VoIP or PRI. Key features: 10/100/1000 electrical Ethernet interfaces and optical interfaces (100M, 1GE, 10GE). Standardized RFC 2544, Y.1564 SAMComplete, RFC6349 TrueSpeed (TCP), and MEF34 testing. Compatible with VIAVI fiber microscopes and optical power meters.