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 BlueField DPU 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 BlueField DPU 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	3
4	GND	GND BAR			4
5	PCIE_CPU_CX_15N	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	5
6	PCIE_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-Point	38	6
7	GND	GND BAR			7
8	PCIE_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-Point	38	8
9	PCIE_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-Point	38	9
10	GND	GND BAR			10
11	PCIE_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-Point	38	11
12	PCIE_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-Point	38	12
13	GND	GND BAR			13
14	PCIE_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-Point	38	14
15	PCIE_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-Point	38	15
16	GND	GND BAR			16
17	PCIE_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-Point	38	17
18	PCIE_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-Point	38	18
19	GND	GND BAR			19
20	PCIE_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-Point	38	20
21	PCIE_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-Point	38	21
22	GND	GND BAR			22
23	PCIE_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-Point	38	23
24	PCIE_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-Point	38	24
25	GND	GND BAR			25
26	PCIE_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-Point	38	26
27	PCIE_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-Point	38	27
28	GND	GND BAR			28
29	PCIE_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-Point	38	29
30	PCIE_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-Point	38	30
31	GND	GND BAR			31
32	PCIE_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-Point	38	32
33	PCIE_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-Point	38	33
34	GND	GND BAR			34
35	PCIE_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-Point	38	35
36	PCIE_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-Point	38	36
37	GND	GND BAR			37
38	PCIE_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-Point	38	38
39	PCIE_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-Point	38	39
40	GND	GND BAR			40
41	PCIE_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-Point	38	41
42	PCIE_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-Point	38	42
43	GND	GND BAR			43
44	PCIE_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-Point	38	44
45	PCIE_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-Point	38	45
46	GND	GND BAR			46
47	PCIE_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-Point	38	47
48	PCIE_CPU_CX_1P	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	48
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	I2C_DPU_BMC_SDA	Micro coax		38	53
54	I2C_DPU_BMC_SCL	Micro coax		38	54
55	AUX_PGOOD	Micro coax		38	55
56	No wire	Micro coax		38	56
57	I2C_AUX_SCL	Micro coax	The BlueField 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 BlueField DPU 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 BlueField DPU silicon, they need to be included on this I2C bus as well.	38	57
58	I2C_AUX_SDA	Micro coax	The BlueField 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 BlueField DPU 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 BlueField DPU silicon, they need to be included on this I2C bus as well.	38	58
59	S_PRSNT1_L	Micro 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.	38	59
60		No Wire			60

Cabline CA-II Plus Harness - Print Side

Pin#	Signal Name	Wire Type	AWG#	Detailed Description	Pin# on the other end
1	SER_CLK	Micro coax	38	This pin is used as the serializer clock (SER_CLK) from the DPU to the device/s located on the motherboard.	1
2	SER_CAPTURE	Micro coax	38	This pin is used as the serializer capture (SER_CAPTURE).	2
3	SER_DO	Micro coax	38	This pin is used as the serializer data out from the BlueField DPU to the device/s located on the motherboard .	3
4	S_PERST2_CONN_L	Micro coax	38	Optional: PCIe compliant PERST_L (active low PCI Reset) signal for the Cabline CA-II Plus PCIe interface. To be used as the PERST_L signal for the control of PCIe lane 15:8, when a bifurcation of the Cabline CA-II Plus PCIe x16 interface to two x8 interfaces is needed (and in specific main board assemblies which support such bifurcation). The direction of this optional PERST_L signal depends on the implementation: When connecting a CPU root complex to the Cabline CA-II Plus PCIe interface, this signal is driven from the motherboard side (from the CPU), to the BlueField DPU; When connecting a GPU or an end point to the Cabline CA-II Plus PCIe interface, this signal is driven from the BlueField DPU (which operates as a PCIe switch in this case), to the GPU or end-point on the motherboard side.	4
5	SER_DI	Micro coax	38	This pin is used as the serializer data in from the device/s located on the motherboard.	5
6	Reserved_06	Micro coax	38		6
7	Reserved_07	Micro coax	38	Reserved for future expansion	7
8	Reserved_08	Micro coax	38	Reserved for future expansion	8
9	GND	GND BAR			9
10	PCIE_CX_CPU_0P	Micro coax	38	Connect 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 BlueField DPU.	10
11	PCIE_CX_CPU_0N	Micro coax	38	Connect 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 BlueField DPU.	11
12	GND	GND BAR			12
13	PCIE_CX_CPU_1P	Micro coax	38	Connect 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 BlueField DPU.	13
14	PCIE_CX_CPU_1N	Micro coax	38	Connect 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 BlueField DPU.	14
15	GND	GND BAR			15
16	PCIE_CX_CPU_2P	Micro coax	38	Connect 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 BlueField DPU.	16
17	PCIE_CX_CPU_2N	Micro coax	38	Connect 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 BlueField DPU.	17
18	GND	GND BAR			18
19	PCIE_CX_CPU_3P	Micro coax	38	Connect 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 BlueField DPU.	19
20	PCIE_CX_CPU_3N	Micro coax	38	Connect 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 BlueField DPU.	20
21	GND	GND BAR			21
22	PCIE_CX_CPU_4P	Micro coax	38	Connect 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 BlueField DPU.	22
23	PCIE_CX_CPU_4N	Micro coax	38	Connect 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 BlueField DPU.	23
24	GND	GND BAR			24
25	PCIE_CX_CPU_5P	Micro coax	38	Connect 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 BlueField DPU.	25
26	PCIE_CX_CPU_5N	Micro coax	38	Connect 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 BlueField DPU.	26
27	GND	GND BAR			27
28	PCIE_CX_CPU_6P	Micro coax	38	Connect 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 BlueField DPU.	28
29	PCIE_CX_CPU_6N	Micro coax	38	Connect 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 BlueField DPU.	29
30	GND	GND BAR			30
31	PCIE_X_CPU_7P	Micro coax	38	Connect 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 BlueField DPU.	31
32	PCIE_CX_CPU_7N	Micro coax	38	Connect 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 BlueField DPU.	32
33	GND	GND BAR			33
34	PCIE_CX_CPU_8P	Micro coax	38	Connect 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 BlueField DPU.	34
35	PCIE_CX_CPU_8N	Micro coax	38	Connect 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 BlueField DPU.	35
36	GND	GND BAR			36
37	PCIE_CX_CPU_9P	Micro coax	38	Connect 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 BlueField DPU.	37
38	PCIE_CX_CPU_9N	Micro coax	38	Connect 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 BlueField DPU.	38
39	GND	GND BAR			39
40	PCIE_CX_CPU_10P	Micro coax	38	Connect 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 BlueField DPU.	40
41	PCIE_CX_CPU_10N	Micro coax	38	Connect 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 BlueField DPU.	41
42	GND	GND BAR			42
43	PCIE_CX_CPU_11P	Micro coax	38	Connect 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 BlueField DPU.	43
44	PCIE_CX_CPU_11N	Micro coax	38	Connect 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 BlueField DPU.	44
45	GND	GND BAR			45
46	PCIE_CX_CPU_12P	Micro coax	38	Connect 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 BlueField DPU.	46
47	PCIE_CX_CPU_12N	Micro coax	38	Connect 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 BlueField DPU.	47
48	GND	GND BAR			48
49	PCIE_CX_CPU_13P	Micro coax	38	Connect 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 BlueField DPU.	49
50	PCIE_CX_CPU_13N	Micro coax	38	Connect 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 BlueField DPU.	50
51	GND	GND BAR			51
52	PCIE_CX_CPU_14P	Micro coax	38	Connect 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 BlueField DPU.	52
53	PCIE_CX_CPU_14N	Micro coax	38	Connect 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 BlueField DPU.	53
54	GND	GND BAR			54
55	PCIE_CX_CPU_15P	Micro coax	38	Connect 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 BlueField DPU.	55
56	PCIE_CX_CPU_15N	Micro coax	38	Connect 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 BlueField DPU.	56
57	GND	GND BAR			57
58	S_PERST1_CONN_L	Micro coax	38	PCIe 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 BlueField DPU. When connecting a GPU or an end point to the PCIe Cabline CA-II Plus interface, this signal is driven from the BlueField DPU 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
60	S_PRSNT2_L	Micro 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 BlueField DPU. 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

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Cabline CA-II Plus Harness Pinouts

Cabline CA-II Plus Harness - Component Side

Cabline CA-II Plus Harness - Print Side