IBM Serial I/O 128P Expandable Subsystem Hardware Installation Manual
1-10
Cluster Multiplexers draw power from a Power Adapter supplied in
the Multiplexer Set, which plugs directly into any convenient wall
outlet (see Figure 1-10).
When Expansion Bus Cables are used between Expansion Modules, a
PS-4 Power Supply is required for each Module as shown in Figure 1-9.
Figure 1-9. Individual PS-4s Provide Power to Modules Separated by EBCs
Figure 1-10. Cluster Multiplexer Draws Power From Power Adapter
