To connect cables to the front and rear OCP interposer cards, see “OCP interposer cards” on page 297.
Connections between connectors: 
1  ↔  1 ,  2  ↔  2 ,  3  ↔  3 , ...  n  ↔  n
Figure 338. Signal cable routing to Trimode 16i adapter
From To
1  Backplane 1: SAS 1  16i adapter: C0
2  Backplane 2: SAS 2  16i adapter: C1
Two 8 x NVMe backplanes
This section provides cable routing information for the server model with two 8 x 2.5-inch NVMe front 
backplanes.
To connect power cables for the front backplane(s), refer to 
“Backplanes: server models with 2.5-inch front 
drive bays” on page 312
.
To connect signal cables for the front backplane(s), refer to the following cable routing scenarios depending 
on your server configuration.
•  “Onboard connectors” on page 342
•  “Onboard connectors + Retimer card” on page 342
Chapter 6. Internal cable routing 341