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Synchronization across a Network

    Last Modified: May 20, 2019

    The onboard 100 MHz oscillator automatically synchronizes to other network-synchronized devices that are part of your local 802.1AS subnet.

    The 13.1072 MHz, 12.8 MHz, 12.288 MHz, and 10.24 MHz Timebases are derived from the oscillator, and are synchronized to it. Therefore, they are also synchronized to other network-synchronized timebases on your 802.1AS subnet. This enables measurement signals to be synchronized to other devices across a distributed network.

    The FieldDAQ devices use the IEEE 802.1AS protocol over the network to synchronize. They can be configured to use the IEEE 1588 "Delay Request-Response Default PTP" profile instead[1]. These devices cannot synchronize with other 1588 profiles.

    • 1 IEEE 1588 protocol is supported in NI-DAQmx 18.1 and later.

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