1-3
Network configuration
Overview The 4010ES can be expanded to a network system by using the 4010-9902 and the 4010-9922
network interface cards (NICs). When a NIC is installed into a 4010ES host panel, it is used to
connect to up to 98 other network nodes. Nodes may consist of other host 4010ES panels, or
they may be completely different: 4010ES FACPs and TrueSite Workstation (TSW) are
examples of what could be used as nodes. A node is a self-sufficient FACP that controls
appliances and devices, which also has the capability of controlling and communicating with
other nodes.
The network configuration supports two prevalent architectures or wiring configurations: hub
(or ring), or star. A networked system can also use a combination of the two.
The hub configuration consists of a main loop with nodes connected in a radial manner. The
star configuration consists of several nodes connected directly to one common node. Physical
bridge cards are used for the star configuration. Physical bridges reduce the amount of wire that
would otherwise be needed to connect all nodes in a loop. A combination of the two styles is
illustrated in Figure 1-2.
Figure 1-2. Hub/ring configuration
Ring Topology
Physical Bridge Links
(Star Topology)
TSW
Network Display Unit
(NDU)
Hub Node
Distributed Remote
Node Locations
Note: Physical Bridge
links in a 4010ES
requires a two-bay box
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