Apple PowerBook 520 Technical Information Page 68

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CHAPTER 4
Expansion Modules
54 PDS Expansion Card
Note
The PDS connector is designed so that when the PDS card is inserted,
the first connection is the ground by way of the connector shells, then
the power pins make contact, and last of all the signal lines. The callout
numbered 11 in Figure 4-12 indicates the long pins for the power
connections.
PDS Card Design 4
This section shows the mechanical outline and parts-placement guidelines for the
PDS expansion card. Figure 4-12 shows the dimensions of the PDS expansion card.
Figure 4-12 and Figure 4-13 show the restrictions on placement of components on the top
and bottom of the card.
Figure 4-11 Dimensions of the PDS card
Note: Dimensions are in millimeters.
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