‘Is network access available?’ refers to the ability to connect to an Ethernet network. This hardware connectivity is required for certain synchronization methods. Note that internet connection is not implied by this question. The 1588 and SNTP technologies can both be implemented on a local network.
‘Can the nodes be physically cabled together’ refers to connecting the nodes with BNC, ethernet, or other standard cabling. This question is necessary to consider for applications where the physical distance between nodes is less than 100 meters, but the nodes are isolated in rooms/chambers that prevent direct cabling.
‘Synchronized Samples’ refers to each sample time being individually synchronized. This type of synchronization requires all sample clocks to be aligned.
‘Synchronized Trigger’ refers to the beginning of all acquisitions occurring at the same instant. This type of synchronization requires a start trigger to be distributed.
‘Immediate Trigger’ refers to a hardware trigger or user interaction that will immediately result in an acquisition start.
‘Delay Trigger’ refers to a trigger that is based off a system event (for example, a temperature reading being above a critical threshold).
‘Clock Sharing’ refers to distributing the hardware clock signal either within a node or between nodes.
‘System Time’ refers to synchronizing the system clock of the controller. This type of synchronization can be used when sub-millisecond precision is not necessary.