NF802 is the new generation of digital relay test equipment with local control. This digital relay tester is equipped with 8 optical ports, and its powerful data processing capability can achieve the full functional test of the IEC61850 devices. Support GPS\ IRIG-B\ IEEE 1588 synchronization, it makes the substation internal debugging and substation to substation combine debugging available. NF802 integrated some unique functions including: the abnormal SVGOOSE simulation, virtual terminal test, the optical power testing and so on Features 8 fiber optical ports for:Receiving and sending IEC61850-9-2 format SV and GOOSE message;Receiving and sending IEE1588 message;Measuring received fiber optical power Provide flexibility to configure both SV (IEC61850-9-2) and GOOSE ports independently. Local control with quick control buttons Each port can be configured as Receive and Send at the same time or it can be configured as Receive or Send. Can check the GOOSE communication link SV, GOOSE configure message can be saved and recall repeatedly With the IEEE1588 synchronization function, deviation of the time is less than ±80ns With GPS, IRIG-B code synchronization interface.