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1-7
Network loops can be joined via physical bridge cards. There may be no more than two
Style 7 network loops (two hub configurations) connected in tandem. For every two
loops that are interconnected (using one physical bridge), there can be a maximum of
three physical bridges used in a star configuration. See Figure 1-4.
Remote Loop
Physical Bridge Link
Local Loop
Physical Bridging
(Star Configuration)
Graphic Command
Center (GCC)
Physical
Bridge
Link
Physical Bridge Link
Hub Node
Hub
Node
Remote
Node
Physical Bridge Link
Figure 1-4. Interconnected Loop Configuration
To be used as a network node, a 4100 panel must contain the following:
• CPU
• System Power Supply
• 4100 Network Interface Card
• Optional slave cards
Network communication is achieved via 4100-6014 or 4100-6035 Network Interface
Cards (NICs). Each network node requires a NIC. Once the FACP is a network node, it
may be programmed to be fully in control of other nodes, or to be fully passive, or
anywhere in between.
Network Configuration, Continued
Connecting Loops
System Design
Network
Communication