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In the expansion bay, power and data are distributed via the power distribution interface
(PDI). The PDI is a wiring board with eight card slots, each of which can accommodate a
4-inch (102 mm) x 5-inch (127 mm) slave card. If 4100-style motherboards are used, they
must be mounted over the PDI using a kit of metal standoffs (part number 4100-KT0468).
4100 POWER DISTRIBUTION INTERFACE
ASSY 566-084
Figure 2-5. The Power Distribution Interface (PDI)
The rightmost 2” slot in the expansion bay is occupied by a mounting bracket holding a
single switched General Power Outlet. The fixed AC power wiring must be installed to
this GPO by a suitably qualified electrician.
IMPORTANT: AC power must be provided to the 4100U-S1 from a dedicated branch
circuit.
The SPS plugs into this GPO, and can be switched off or unplugged for servicing.
Introduction to 4100U-S1 Cabinet, Continued
The Power
Distribution
Interface (PDI)
Mains Outlet
POWER/COMMS
CONNECTORS
(P1-P3)
AUDIO INTERFACE
CONNECTORS
(P6, P7)
(Not used in 4100U-S1)
POWER SOURCE
JUMPERS
(P4, P5)