ACRA Control’s NET/SWI/004 is a compact, lightweight, ruggedized MIL-STD-810 ethernet switch. The device has an embedded Grandmaster that transmits IEEE 1588 Precision Time Protocol packets to achieve system-wide synchronization using time data from a built-in GPS receiver or a digital IRIG-B time source or via an internal free-running clock. The switch has negligible start-up delay due to its microprocessor-free operation. Hardwired construction provides deterministic functionality that eliminates adaptive behavior, resulting in lower latencies than for traditional switches. This results in greater throughput and lower data loss from power outages.