NVMe Retimer adapter configurations

This section provides cable routing information for the server model with NVMe Retimer adapters

Configuration 1: one NVMe Retimer adapter on the rear backplane​

Figure 1. Cable routing for configuration with one NVMe Retimer adapter on the rear backplane

Cable	From	To
1 NVMe signal cable	NVMe 0-1 connector on the rear backplane	Connector C0 on the retimer adapter in PCIe slot 4
	NVMe 2-3 connector on the rear backplane	Connector C1 on the retimer adapter in PCIe slot 4

Configuration 2: two NVMe Retimer adapters on the front backplane​

Figure 2. Cable routing for configuration with two NVMe Retimer adapters on the front backplane

Cable	From	To
1 NVMe signal cable	NVMe 0-1 connector on the front backplane 3	Connector C0 on the retimer adapter 1 in PCIe slot 5
	NVMe 2-3 connector on the front backplane 3	Connector C1 on the retimer adapter 1 in PCIe slot 5
2 NVMe signal cable	NVMe 4-5 connector on the front backplane 3	Connector C0 on the retimer adapter 2 in PCIe slot 1
	NVMe 6-7 connector on the front backplane 3	Connector C1 on the retimer adapter 2 in PCIe slot 1

Configuration 3: three NVMe Retimer adapters, one on the rear backplane, two on the front backplane​

Figure 3. Cable routing for configuration with three NVMe Retimer adapters, one on the rear backplane, two on the front backplane

Cable	From	To
1 NVMe signal cable	NVMe 0-1 connector on the front backplane 3	Connector C0 on the retimer adapter 1 in PCIe slot 5
	NVMe 2-3 connector on the front backplane 3	Connector C1 on the retimer adapter 1 in PCIe slot 5
2 NVMe signal cable	NVMe 4-5 connector on the front backplane 3	Connector C0 on the retimer adapter 2 in PCIe slot 1
	NVMe 6-7 connector on the front backplane 3	Connector C1 on the retimer adapter 2 in PCIe slot 1
3 NVMe signal cable	NVMe 0-1 connector on the rear backplane	Connector C0 on the retimer adapter 3 in PCIe slot 4
	NVMe 2-3 connector on the rear backplane	Connector C1 on the retimer adapter 3 in PCIe slot 4

Configuration 4: one NVMe Retimer adapter on the rear backplane and one 1611-8P NVMe switch card​

Figure 4. Cable routing for configuration with one NVMe Retimer adapter on the rear backplane and one 1611-8P NVMe switch card

1 NVMe signal cable	NVMe 0-1 connector on the rear backplane	Connector C0 on the retimer adapter in PCIe slot 4
	NVMe 2-3 connector on the rear backplane	Connector C1 on the retimer adapter in PCIe slot 4
2 NVMe signal cable	NVMe 0-1 and 2-3 connectors on the front backplane 3	Connectors C0 and C1 on the NVMe switch card in PCIe slot 1
	NVMe 4-5 and 6-7 connectors on the front backplane 3	Connectors C2 and C3 on the NVMe switch card in PCIe slot 1