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Cabline CA-II Plus Harness - Component Side

Pin#

Signal Name

Wire Type

Detailed Description

AWG#

Pin# on the
other end

1GNDGND BAR

1
2PCIE_REFCLK1_PMicro 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.382
3PCIE_REFCLK1_NMicro 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.383
4GNDGND BAR

4
5PCIE_CPU_CX_15NMicro coax  Connect from the Black Cabline CA-II Plus cable through 220nF capacitors to the x16 PCIe Tx lanes of the CPU/GPU/End-Point385
6PCIE_CPU_CX_15P 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-Point386
7GNDGND BAR

7
8PCIE_CPU_CX_14N 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-Point388
9PCIE_CPU_CX_14P 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-Point389
10GNDGND BAR

10
11PCIE_CPU_CX_13N 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-Point3811
12PCIE_CPU_CX_13P 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-Point3812
13GNDGND BAR

13
14PCIE_CPU_CX_12N 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-Point3814
15PCIE_CPU_CX_12P 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-Point3815
16GNDGND BAR

16
17PCIE_CPU_CX_11N 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-Point3817
18PCIE_CPU_CX_11P 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-Point3818
19GNDGND BAR

19
20PCIE_CPU_CX_10N 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-Point3820
21PCIE_CPU_CX_10P 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-Point3821
22GNDGND BAR

22
23PCIE_CPU_CX_9N 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-Point3823
24PCIE_CPU_CX_9P 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-Point3824
25GNDGND BAR

25
26PCIE_CPU_CX_8N 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-Point3826
27PCIE_CPU_CX_8P 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-Point3827
28GNDGND BAR

28
29PCIE_CPU_CX_7N 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-Point3829
30PCIE_CPU_CX_7P 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-Point3830
31GNDGND BAR

31
32PCIE_CPU_CX_6N 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-Point3832
33PCIE_CPU_CX_6P 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-Point3833
34GNDGND BAR

34
35PCIE_CPU_CX_5N 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-Point3835
36PCIE_CPU_CX_5P 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-Point3836
37GNDGND BAR

37
38PCIE_CPU_CX_4N 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-Point3838
39PCIE_CPU_CX_4P 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-Point3839
40GNDGND BAR

40
41PCIE_CPU_CX_3N 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-Point3841
42PCIE_CPU_CX_3P 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-Point3842
43GNDGND BAR

43
44PCIE_CPU_CX_2N 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-Point3844
45PCIE_CPU_CX_2P 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-Point3845
46GNDGND BAR

46
47PCIE_CPU_CX_1N 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-Point3847
48PCIE_CPU_CX_1PMicro coax  Connect from the Black Cabline CA-II Plus cable through 220nF capacitors to the x16 PCIe Tx lanes of the CPU/GPU/End-Point3848
49GNDGND BAR

49
50PCIE_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-Point3850
51PCIE_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-Point3851
52GNDGND BAR

52
53I2C_SMDATMicro coax  PCIe compliant SMBus interface to the network adapter. The Network adapter silicon may be accessed through this SMBus interface after the Power-On sequence of the network adapter is completed. The motherboard side serves as the bus master on the SMBus interface. (Please note on AUX board implementation, an I2C EEPROM at address 0x50 is also present on this interface, to allow the server management entity to read the identity of the auxiliary card. For a direct motherboard interface to the Cabline CA-II Plus cables, mounting such FRU EEPROM on the motherboard should be considered – for motherboard management purposes of the Cabline CA-II Plus interface to the network adapter).3853
54I2C_SMCLKMicro coax  PCIe compliant SMBus interface to the network adapter. The Network adapter silicon may be accessed through this SMBus interface after the Power-On sequence of the network adapter is completed. The motherboard side serves as the bus master on the SMBus interface. (Please note on AUX board implementation, an I2C EEPROM at address 0x50 is also present on this interface, to allow the server management entity to read the identity of the auxiliary card. For a direct motherboard interface to the Cabline CA-II Plus cables, mounting such FRU EEPROM on the motherboard should be considered – for motherboard management purposes of the Cabline CA-II Plus interface to the network adapter).3854
55Reserved_01Micro coax  
3855
56S_WAKE1_CONN_L Micro coax  In setups that support operation of the network adapter card during standby operating mode, this optional PCIe compliant Wake signal, may be used for the network adapter silicon to indicate to the motherboard when wake from standby power mode, for example after a magic packet was received. Please consult NVIDA in case of intention to use this signal, as it has not been populated or used in designs so far.3856
57I2C_AUX_SCLMicro 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. 3857
58

I2C_AUX_SDA

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. 3858
59S_PRSNT1_LMicro coax  

Connect this pin to GND

No wires are connected to these pins to ensure they do not interfere with the operation of S_PRSNT2_L for the detection when the two Cabline harnesses are installed.

3859
60
No Wire

60


Cabline CA-II Plus Harness - Print Side

Pin#

Signal Name

Wire Type

AWG#

Detailed Description

Pin# on the
other end

1SER_CLKMicro coax  38
1
2SER_CAPTUREMicro coax  38
2
3SER_DOMicro coax  38


3
4Reserved_04Micro coax  38
4
5SER_DIMicro coax  38


5
6S_BIFFURCATE_AUX_BRDMicro coax  38In specific Network Card Assemblies which support bifurcation of the PCIe x16 IPEX interface to two x8 PCIe interfaces, this pin is used for either the motherboard or the network adapter silicon to signal whether the IPEX interface should or should not be bifurcated. This signal has been reserved and hasn’t been used in the past, and as a result it’s direction has not been fixed yet, to provide for additional options in the future. (pin is marked as Reserved 06 in the generic White IPEX Cable pinout)6
7Reserved_07Micro coax  38Reserved for future expansion7
8Reserved_08Micro coax  38Reserved for future expansion8
9GNDGND BAR

9
10PCIE_CX_CPU_0PMicro coax  38Connect from the White Cabline CA-II Plus harness to the PCIe x16 Rx lanes of the CPU/GPU/End-Point. 220nF caps are required on this signal on the ConnectX-7 card. 10
11

PCIE_CX_CPU_0N

Micro coax  38Connect from the White Cabline CA-II Plus harness to the PCIe x16 Rx lanes of the CPU/GPU/End-Point. 220nF caps are required on this signal on the ConnectX-7 card. 11
12GNDGND BAR

12
13PCIE_CX_CPU_1PMicro coax  38Connect from the White Cabline CA-II Plus harness to the PCIe x16 Rx lanes of the CPU/GPU/End-Point. 220nF caps are required on this signal on the ConnectX-7 card. 13
14

PCIE_CX_CPU_1N

Micro coax  38Connect from the White Cabline CA-II Plus harness to the PCIe x16 Rx lanes of the CPU/GPU/End-Point. 220nF caps are required on this signal on the ConnectX-7 card. 14
15GNDGND BAR

15
16PCIE_CX_CPU_2PMicro coax  38Connect from the White Cabline CA-II Plus harness to the PCIe x16 Rx lanes of the CPU/GPU/End-Point. 220nF caps are required on this signal on the ConnectX-7 card. 16
17

PCIE_CX_CPU_2N

Micro coax  38Connect from the White Cabline CA-II Plus harness to the PCIe x16 Rx lanes of the CPU/GPU/End-Point. 220nF caps are required on this signal on the ConnectX-7 card. 17
18GNDGND BAR

18
19PCIE_CX_CPU_3PMicro coax  38Connect from the White Cabline CA-II Plus harness to the PCIe x16 Rx lanes of the CPU/GPU/End-Point. 220nF caps are required on this signal on the ConnectX-7 card. 19
20

PCIE_CX_CPU_3N

Micro coax  38Connect from the White Cabline CA-II Plus harness to the PCIe x16 Rx lanes of the CPU/GPU/End-Point. 220nF caps are required on this signal on the ConnectX-7 card. 20
21GNDGND BAR

21
22PCIE_CX_CPU_4PMicro coax  38Connect from the White Cabline CA-II Plus harness to the PCIe x16 Rx lanes of the CPU/GPU/End-Point. 220nF caps are required on this signal on the ConnectX-7 card. 22
23

PCIE_CX_CPU_4N

Micro coax  38Connect from the White Cabline CA-II Plus harness to the PCIe x16 Rx lanes of the CPU/GPU/End-Point. 220nF caps are required on this signal on the ConnectX-7 card. 23
24GNDGND BAR

24
25PCIE_CX_CPU_5PMicro coax  38Connect from the White Cabline CA-II Plus harness to the PCIe x16 Rx lanes of the CPU/GPU/End-Point. 220nF caps are required on this signal on the ConnectX-7 card. 25
26

PCIE_CX_CPU_5N

Micro coax  38Connect from the White Cabline CA-II Plus harness to the PCIe x16 Rx lanes of the CPU/GPU/End-Point. 220nF caps are required on this signal on the ConnectX-7 card. 26
27GNDGND BAR

27
28PCIE_CX_CPU_6PMicro coax  38Connect from the White Cabline CA-II Plus harness to the PCIe x16 Rx lanes of the CPU/GPU/End-Point. 220nF caps are required on this signal on the ConnectX-7 card. 28
29

PCIE_CX_CPU_6N

Micro coax  38Connect from the White Cabline CA-II Plus harness to the PCIe x16 Rx lanes of the CPU/GPU/End-Point. 220nF caps are required on this signal on the ConnectX-7 card. 29
30GNDGND BAR

30
31PCIE_X_CPU_7PMicro coax  38Connect from the White Cabline CA-II Plus harness to the PCIe x16 Rx lanes of the CPU/GPU/End-Point. 220nF caps are required on this signal on the ConnectX-7 card. 31
32

PCIE_CX_CPU_7N

Micro coax  38Connect from the White Cabline CA-II Plus harness to the PCIe x16 Rx lanes of the CPU/GPU/End-Point. 220nF caps are required on this signal on the ConnectX-7 card. 32
33GNDGND BAR

33
34PCIE_CX_CPU_8PMicro coax  38Connect from the White Cabline CA-II Plus harness to the PCIe x16 Rx lanes of the CPU/GPU/End-Point. 220nF caps are required on this signal on the ConnectX-7 card. 34
35

PCIE_CX_CPU_8N

Micro coax  38Connect from the White Cabline CA-II Plus harness to the PCIe x16 Rx lanes of the CPU/GPU/End-Point. 220nF caps are required on this signal on the ConnectX-7 card. 35
36GNDGND BAR

36
37PCIE_CX_CPU_9PMicro coax  38Connect from the White Cabline CA-II Plus harness to the PCIe x16 Rx lanes of the CPU/GPU/End-Point. 220nF caps are required on this signal on the ConnectX-7 card. 37
38

PCIE_CX_CPU_9N

Micro coax  38Connect from the White Cabline CA-II Plus harness to the PCIe x16 Rx lanes of the CPU/GPU/End-Point. 220nF caps are required on this signal on the ConnectX-7 card. 38
39GNDGND BAR

39
40PCIE_CX_CPU_10PMicro coax  38Connect from the White Cabline CA-II Plus harness to the PCIe x16 Rx lanes of the CPU/GPU/End-Point. 220nF caps are required on this signal on the ConnectX-7 card. 40
41

PCIE_CX_CPU_10N

Micro coax  38Connect from the White Cabline CA-II Plus harness to the PCIe x16 Rx lanes of the CPU/GPU/End-Point. 220nF caps are required on this signal on the ConnectX-7 card. 41
42GNDGND BAR

42
43PCIE_CX_CPU_11PMicro coax  38Connect from the White Cabline CA-II Plus harness to the PCIe x16 Rx lanes of the CPU/GPU/End-Point. 220nF caps are required on this signal on the ConnectX-7 card. 43
44

PCIE_CX_CPU_11N

Micro coax  38Connect from the White Cabline CA-II Plus harness to the PCIe x16 Rx lanes of the CPU/GPU/End-Point. 220nF caps are required on this signal on the ConnectX-7 card. 44
45GNDGND BAR

45
46PCIE_CX_CPU_12PMicro coax  38Connect from the White Cabline CA-II Plus harness to the PCIe x16 Rx lanes of the CPU/GPU/End-Point. 220nF caps are required on this signal on the ConnectX-7 card. 46
47

PCIE_CX_CPU_12N

Micro coax  38Connect from the White Cabline CA-II Plus harness to the PCIe x16 Rx lanes of the CPU/GPU/End-Point. 220nF caps are required on this signal on the ConnectX-7 card. 47
48GNDGND BAR

48
49PCIE_CX_CPU_13PMicro coax  38Connect from the White Cabline CA-II Plus harness to the PCIe x16 Rx lanes of the CPU/GPU/End-Point. 220nF caps are required on this signal on the ConnectX-7 card. 49
50

PCIE_CX_CPU_13N

Micro coax  38Connect from the White Cabline CA-II Plus harness to the PCIe x16 Rx lanes of the CPU/GPU/End-Point. 220nF caps are required on this signal on the ConnectX-7 card. 50
51GNDGND BAR

51
52PCIE_CX_CPU_14PMicro coax  38Connect from the White Cabline CA-II Plus harness to the PCIe x16 Rx lanes of the CPU/GPU/End-Point. 220nF caps are required on this signal on the ConnectX-7 card. 52
53

PCIE_CX_CPU_14N

Micro coax  38Connect from the White Cabline CA-II Plus harness to the PCIe x16 Rx lanes of the CPU/GPU/End-Point. 220nF caps are required on this signal on the ConnectX-7 card. 53
54GNDGND BAR

54
55PCIE_CX_CPU_15PMicro coax  38Connect from the White Cabline CA-II Plus harness to the PCIe x16 Rx lanes of the CPU/GPU/End-Point. 220nF caps are required on this signal on the ConnectX-7 card. 55
56

PCIE_CX_CPU_15N

Micro coax  38Connect from the White Cabline CA-II Plus harness to the PCIe x16 Rx lanes of the CPU/GPU/End-Point. 220nF caps are required on this signal on the ConnectX-7 card. 56
57GNDGND BAR

57
58

S_PERST1_CONN_L

Micro coax  38PCIe compliant PERST_L (active low PCI Reset) signal for the PCIe Cabline CA-II Plus Connectors. The direction of this PERST_L signal depends on the implementation: When connecting a CPU root complex to the PCIe Cabline CA-II Plus interface, this signal is driven from the motherboard side (from the CPU), to the network adapter. When connecting a GPU or an end point to the PCIe Cabline CA-II Plus interface, this signal is driven from the network adapter side (which operates as a PCIe switch in this case), to the GPU or end-point on the motherboard side.58
59
No Wire

59
60S_PRSNT2_LMicro coax  38

Connect to a 4.7K pull-up resistor to 3.3V on the motherboard side, to detect if both the Cabline harnesses are connected or not. This signal is connected to S_PRSNT1_L on the network adapter main card. In the motherboard side, read logic low if both Cabline harnesses are connected. Read logic 1 (3.3V) if one or both the Cabline harnesses are not connected.

No wires are connected to these pins to ensure they do not interfere with the operation of S_PRSNT1_L for the detection when the two Cabline harnesses are installed.

60