The NT100E3-1-PTP SmartNIC has 3 time synchronization connectors (Ext1, Int1 and Int2) that
can be configured separately for input or output (see Configuring the Time Synchronization Connectors and the Time Synchronization Time and Frequency Reference Priorities). In addition the SmartNIC has two internal time
synchronization connectors (Int3 and Int4) that are not supported. This figure shows an
NT100E3-1-PTP SmartNIC and the location of its time synchronization connectors.
The external time synchronization connector contains a robust SMA connector, which
ensures a more secure interface connection.