Pin
#
Signal
Name
I/O Signal Description
18 GND GND Ground
19 RBT_ARB_O
UT
Input NC-SI hardware arbitration output.
If the baseboard supports multiple DPUs cards connected to the same RBT
interface, it should implement logic that connects the RBT_ARB_OUT pin of
the first populated DPU card to its RBT_ARB_IN pin if it is the only card
present or to the RBT_ARB_IN pin of the next populated card and so on
sequentially for all cards on the specified RBT bus to ensure the arbitration
ring is complete. This logic should bypass slots that are not populated or
powered off.
20 RBT_ARB_IN Output NC-SI hardware arbitration input.
If the baseboard supports multiple DPUs cards connected to the same RBT
interface, it should implement logic that connects the RBT_ARB_IN pin of
the first populated DPU card to its RBT_ARB_OUT pin if it is the only card
present or to the RBT_ARB_OUT pin of the next populated card and so on
sequentially for all cards on the specified RBT bus to ensure the arbitration
ring is complete. This logic should bypass slots that are not populated or
powered off.
4.4 Cabline CA-II Plus Connectors Pinouts
4.4.1 Component Side
Pin# Signal Name Wire Type AWG# Pin# on other
end
1 GND GND BAR 1
2 PCIE_REFCLK1_P Micro coax 38 2
3 PCIE_REFCLK1_N Micro coax 38 3
4 GND GND BAR 4
5 PCIE_CPU_CX_15N Micro coax 38 5
6 PCIE_CPU_CX_15P Micro coax 38 6
7 GND GND BAR 7
8 PCIE_CPU_CX_14N Micro coax 38 8
9 PCIE_CPU_CX_14P Micro coax 38 9
10 GND GND BAR 10
11 PCIE_CPU_CX_13N Micro coax 38 11
12 PCIE_CPU_CX_13P Micro coax 38 12
13 GND GND BAR 13
14 PCIE_CPU_CX_12N Micro coax 38 14
15 PCIE_CPU_CX_12P Micro coax 38 15
16 GND GND BAR 16
17 PCIE_CPU_CX_11N Micro coax 38 17
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