Nvidia BlueField-2 User Manual page 44

The DPU PTP solution allows you to run any PTP stack on your host. With respect to testing and measurements, selected NVIDIA DPUs allow you to use the
PPS-out signal from the onboard MMCX RA connectors; the DPU also allows measuring PTP in scale, with the PPS-In signal. The PTP HW clock on the DPU
will be sampled on each PPS-In signal, and the timestamp will be sent to the SW.
Use two MMCX Plug, right-angle, 50ohm cables to connect to the MMCX connectors on the board. See the below example.
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