2-37
Chapter 2 Installing FACP Components
Step 7. Interconnecting Modules and Bays (continued)
EPS CPU Basic
Bay-To-Bay
Interconnections
Figure 2-37 shows the basic CPU interconnections in a 4100ES EPS FACP.
Figure 2-37. Basic CPU Interconnections
For information on remote expansion bays, refer to Appendix B.
Connecting to
4100
Motherboards
Panels with motherboards on the left side of the expansion bays require some non-PDI
connections. If you need to connect a harness to a motherboard, refer to Figure 2-38 and follow
these steps. Make sure to route the power and communication wiring on the left side of the bay.
1. Connect one end of the 733-525 Harness to a motherboard in an adjacent bay. If the adjacent
bay is a CPU bay with no additional motherboards, connect the harness to the P8 and P7
connectors of the CPU motherboard.
• Insert the harness connector with the blue wire into the P8 connector. Note that the P8
connector has eight pins. Insert the harness connector on either the top four pins or the
bottom four pins, not in the middle.
• Insert the harness connector with the white wire into the P7 connector. Note that the P7
connector has eight pins. Insert the harness connector on either the top four pins or the
bottom four pins, not in the middle.
Continued on the next page
RUI+ MOTHERBOARD
566-938
EPS PCB 566-873
CPU BAY
CPU BAY TO
EXPANSION BAY
HARNESS (734-008)
EXPANSION BAY PDIs
P1
P2
P3
P1
P2
P3
P1
P2
P3
P2
P3
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