Pin# Signal Name Wire Type Detailed
Description
AWG# Pin# on the
other end
49 GND GND BAR 49
50 PCIE_CPU_CX_0N Micro coax Connect from the
Black Cabline CA-II
Plus cable through
220nF capacitors to
the x16 PCIe Tx
lanes of the CPU/
GPU/End-Point
38 50
51 PCIE_CPU_CX_0P Micro coax Connect from the
Black Cabline CA-II
Plus cable through
220nF capacitors to
the x16 PCIe Tx
lanes of the CPU/
GPU/End-Point
38 51
52 GND GND BAR 52
53 No wire Micro coax 38 53
54 No wire Micro coax 38 54
55 Reserved_01 Micro coax 38 55
56 No wire Micro coax 38 56
57 I2C_AUX_SCL Micro coax The ConnectX-7
silicon serves as the
I2C bus master on
this bus. An I2C
EEPROM at I2C
address 0x57 needs
to be mounted on
the motherboard
side to report to the
Cabline CA-II Plus
interface parameters
to the main-card
network adapter
silicon, like Cabline
CA-II Plus cables
length (contact
NVIDIA for the
format of this
EEPROM). If
additional optional
I2C slave devices
need to be managed
by the main-card
network adapter
silicon, they need to
be included on this
I2C bus as well.
38 57
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