IBM pSeries 630 6C4 Service Manual page 62

Cabling SPCN Cables to One or Two I/O Subsystems
The following illustration shows the SPCN cabling for either one or two I/O drawer configurations.
One I/O Drawer Attached to Model 6C4:
1 Model 6C4
2 7311 Model D20
42 Eserver pSeries 630 Model 6C4 and Model 6E4 Service Guide
3 Cable from Model 6C4 Connector SPCN 2 to 7311 Model D20
Connector SPCN 4 (J16)
4 Cable from Model 6C4 Connector SPCN 1 to 7311 Model D20
Connector SPCN 3 (J15)