PPS IN/OUT Interface
The DPU Controller incorporates an integrated Hardware Clock (PHC) that allows the DPU
Controller to achieve sub-20u Sec accuracy and also offers many timing-related functions
such as time-triggered scheduling or time-based SND accelerations (time-based ASAP²).
Furthermore, 5T technology enables the software application to transmit fronthaul
(ORAN) at high bandwidth. The PTP part supports the subordinate clock, master clock,
and boundary clock.
The DPU Controller PTP solution allows you to run any PTP stack on your host.
With respect to testing and measurements, selected NVIDIA DPU Controllers allow you to
use the PPS-out signal from the onboard MMCX RA connecter. The DPU Controller also
allows measuring PTP in scale with the PPS-In signal. The PTP HW clock on the Network
adapter is sampled on each PPS-In signal, and the timestamp is sent to the SW.
External PCIe Power Supply Connector
To power up the above-mentioned DPUs, it is necessary to use a supplementary 8-pin
ATX power cable. Since the power provided by the PCIe golden fingers is limited to 66W, a
total maximum of up to 150W is enabled through the ATX 8-pin connector and the PCIe
x16 golden fingers.
The maximum power consumption which does not exceed 150W, is in accordance with
the mode of operation of the DPU, and is split between the two power sources as follows:
Up to 66W from the PCIe golden fingers (12V)
Note
The external ATX power cable is not supplied with the DPU Controller
package; however, this is a standard cable usually available in
servers.
To Next Page
Loading...