The Taitien DT-5151 provides 5G networks, data centers and critical infrastructure with exceptional holdover and stability during GNSS interruptions. The DT-5151 is an advanced crystal timing module, disciplined by a 1 PPS synchronization signal utilizing proprietary algorithms to achieve atomic level performance. The DT-5151 is disciplined to 1 ns RMS in phase, < 10 to 12 in frequency with 24 hour Holdover of < 1.5 uS. The DT5151 has an RS232 digital interface, is available at 5, 8.192 or 10 MHz and -20°C to 70°C range.