... network optimization system provides high-precision time and frequency synchronization signal.CC81131 uses a low phase noise PLL technology and large- ... accuracy: <100ns (satellite tracking error relative to UTC time) TOD information output: 1 channel, DB-9 female, RS232 level, ASCII ... code 9600-N-8-1, GPS status, time information, per 1 Display Indicator: Power, GPS, 1pps, Tracking LCD ...