AT&T 6300 Service Manual page 151

INSTALLATIONS
22. Insert the HDU Controller Board into a single connector
expansion slot (Figure 3-43).
SINGLE EXPANSION SLOT
DUAL EXPANSION SLOTS
EXPANSION
SLOT COVER
BUS CONVERTER
Figure 3-43. Single Connector Expansion Slots
23. Secure the HDU Controller Board
by
fastening the retaining
bracket to the rear panel with a screw and screwdriver.
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