![AXN/TCG/401/B AXN/TCG/401/B](/sites/default/files/2021-10/AXN_TCG_401.png)
The AXN/TCG/401 can accept time from an IRIG-B time source, from its onboard GNSS receiver (external antenna required), or from an external GNSS receiver outputting NMEA messages and a one PPS signal. The time can be used for synchronization of a distributed Axon data acquisition system. The module generates IRIG-B outputs to allow external devices to synchronize with the Axon system.