Model 961 with four I/O enclosures
Use the point-to-point cabling diagram to route the PCIe cables in a Model 961.

| From CEC R1-XC1 | To Rack 1 I/O Enclosure | Cable FRU P/N |
|---|---|---|
| R1-XC1-P1-C1-T1 | (1B1) R1-XI1-P1-C7-T1 | 46X7129 |
| R1-XC1-P1-C1-T2 | (1B2) R1-XI2-P1-C7-T1 | 46X7129 |
| R1-XC1-P1-C3-T1 | (1B3) R1-XI3-P1-C7-T1 | 46X7129 |
| R1-XC1-P1-C4-T1 | (1B4) R1-XI4-P1-C7-T1 | 46X7129 |
| From CEC R1-XC2 | To Rack 1 I/O Enclosure | FRU P/N |
| R1-XC2-P1-C1-T1 | (1B1) R1-XI1-P1-C7-T2 | 46X7129 |
| R1-XC2-P1-C1-T2 | (1B2) R1-XI2-P1-C7-T2 | 46X7129 |
| R1-XC2-P1-C3-T1 | (1B3) R1-XI3-P1-C7-T2 | 46X7129 |
| R1-XC2-P1-C4-T1 | (1B4) R1-XI4-P1-C7-T2 | 46X7129 |