Rice Lake 920i USB Installation Manual V5.05 - Manual (Page 21)

Installation 15
2.5 Expansion Board Configurations
Two- and six-card expansion boards allow up to
fourteen option cards to be attached to the 920i. Figures
2-11 through 2-13 show the slot numbers assigned for
various combinations of two- and six-card expansion
boards. A single six-card expansion board is assigned
slots 3–8.
SLOT 1 SLOT 2
CPU BOARD
1 SLOT 3 SLOT 4
SLOT 0
Figure 2-11. CPU Board with Two-Card Expansion Board
SLOT 1 SLOT 2
SLOT 3 SLOT 4 SLOT 5
SLOT 6 SLOT 7 SLOT 8
CPU BOARD
SLOT 0
1 SLOT 9 SLOT 10
Figure 2-12. CPU Board with Two- and Six-Card Expansion
Boards
SLOT 1 SLOT 2
SLOT 3 SLOT 4 SLOT 5
SLOT 6 SLOT 7 SLOT 8
SLOT 9 SLOT 10 SLOT 11
SLOT 12 SLOT 13 SLOT 14
CPU BOARD
SLOT 0
Figure 2-13. CPU Board with Two Six-Card Expansion
Boards
Note
• The maximum number of option board slots is
fourteen: two onboard slots, plus two six-card
expansion boards.
• The two-card expansion board is always placed at
the end of the expansion bus. No more than one
two-card expansion board can be used in any
system configuration.
• The panel mount enclosure can accommodate a
single two-card expansion board.
• The wall mount enclosure can accommodate a
two-card and/or a six-card expansion board.
• Systems using two six-card expansion boards are
housed in a custom enclosure.