UTC Fire and Security FenwalNET 8000-ML - 1-12.1 Expansion Backplane; Expansion Card Cage

General Information
February 2011 1-14 P/N 06-237041-001
1-12 EXPANSION CARD CAGE
The expandable and flexible nature of the FenwalNET 8000-ML system is facilitated by the Expansion
Card Cage, where an Expansion Card can be easily plugged into a backplane connector.
The Expansion Card Cage is a metal frame which supports and secures a maximum of six Expansion
Cards. The frame is fixed to the Expansion Backplane and mounts securely to the enclosure (in the
second- or third-tier positions).
In a 3-Tiered System Enclosure, the second tier is typically reserved for the Expansion Card Cage. A
fully-expanded FenwalNET 8000-ML system can accommodate a maximum number of four
Expansion Card Cages (24 slots in total).
Figure 1-11. Expansion Card Cage (shown with cards inserted)
1-12.1 Expansion Backplane
The Expansion Backplane is a printed circuit board which is located underneath the Expansion Card
Cage. The backplane provides six card connector positions. A convenient feature of the backplane
is that any card can be inserted into any slot/backplane connector; there are no designated slots
assigned to a particular card type.
An illustration of the Expansion Backplane is shown in Figure 1-12.
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24 Vdc Power IN
from PMU Board
Earth Ground
24 Vdc Power Outputs
Communication
to MCB
Communication to Add-On
Card Cage Backplane or
Connector for Termination Plug
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