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IEEE 802.1AS-2011 Precision Time Protocol

    Last Modified: March 12, 2018

    The internal Ethernet switch is an 802.1AS time-aware bridge, compatible with the IEEE 802.1AS-2011 Precision Time Protocol. It can synchronize local measurement signals to other devices across an 802.1AS subnet. It can also serve as a bridge, synchronizing 802.1AS devices that are attached to each of the two ports. Refer to Synchronization across a Network for more details.


    FieldDAQ devices use the IEEE 802.1AS protocol over the network to synchronize. The IEEE 802.1AS protocol is an IEEE 1588 profile, but is incompatible with other IEEE 1588 profiles. These FieldDAQ devices cannot synchronize over the network with devices that use protocols or IEEE 1588 profiles other than IEEE 802.1AS.

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