LF7500 is a high-performance integrated timing device withrich interfaces. The equipment is easy to install and has complete protectionmeasures, which can continue to work in harsh environments and has been widelyused in related fields. The device generates high-precision time and frequencysignals locally by receiving GNSS satellite signals or other clock sourcesignals (IRIG-B, 1PPS+TOD, NTP, PTP, E1, etc.), and sends high-reliability andhigh-precision downstream NTP/PTP network time signal, at the same time supportoutput 1PPS, 10MHz, IRIG-B, TOD, E1 signals. The device has a built-in rubidiumatomic clock, combined with a punctual algorithm, with high-precisionpunctuality capability, and the 6-month punctuality deviation is less than 1ms.