Nvidia BlueField-3 BF3220SH - Cabline CA-II Plus Harness Pinouts

NVIDIA BlueField-3 DPU Controller User Manual 111
The Cabline CA-II Plus harnesses loss = 0.24dB/cm for Gen 5.0.
The above loss includes the Cabline CA-II Plus harnesses and connectors on both sides.
The PCI-SIG Gen5 SPEC also defines the total loss for AIC (bump to Golden-Fingers) to be
9.5dB @16Ghz.
The BlueField-3 AIC, together with a 15cm Cabline CA-II Plus harnesses and the Passive
PCIe Auxiliary Card loss is: 3dB+2dB+3.8dB+1.5dB=10.3dB > 9.5dB
Cabline CA-II Plus Harness Pinouts
Cabline CA-II Plus Harness - Component Side
Pin# Signal Name Wire Type Detailed Description AWG#
Pin# on the
other end
1 GND GND BAR 1
2 PCIE_REFCLK1_P Micro coax
Primary PCIe clock
from the motherboard
to the Network
Adapter Main card, to
be used for the x16
Cabline harness PCIe
interface. This clock
must meet all the PCIe
SIG spec requirements.
It should be driven
from the motherboard
side.
38 2
3 PCIE_REFCLK1_N Micro coax Primary PCIe clock
from the motherboard
to the Network
Adapter Main card, to
be used for the x16
Cabline harness PCIe
interface. This clock
must meet all the PCIe
38 3