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IEEE 802.15.4 radios with Timken-designed network software. The radios
operate at one of 16 channels between 2.400 and 2.483 GHz and use Direct
Sequence Spread Spectrum (DSSS). The system is designed to form point
to multi-point networks or cluster-tree networks. The network is self
forming and requires minimal actions by the customer.
The minimum hardware required to form a network includes end nodes, a
controller and a computer for data collection and storage. The point-to-point
network will work as long as all end nodes are within transmission distance
of the controller. Routers, sometimes called repeaters, are added to the
network to increase the distance from the controller to an end node. The
routers allow a branch structure to be added to the network, with the end
nodes attaching to the network along the branches formed by the routers.
Network Set-Up:
The network is auto-configuring. Turn on the controller and the end nodes.
End nodes that require a router will not be received. Add routers until all
end nodes are received.
The StatusCheck Controller:
The StatusCheck controller is
packaged in a box with dimensions of
18 x 23 x 15 cm (7 x 9 x 5 inches) and
is shown in Figure 11. The box is IP65
rated so that it can be mounted in
harsh environments. It can be
configured for RS-232, USB or
Ethernet data link. A power line and a
data cable connect to the controller.
No external antenna is allowed.
Figure 11: StatusCheck Controller ——
Controller:
The controller is the device that gathers the data from the end nodes and
transfers it to a PC running the StatusCheck software. The device in Figure
11 can function as a controller or a router node.
To use the device as a
controller, open the hinged lid and set the router/controller switch inside
the box to “controller.” After the router/controller switch position has been
changed, the power switch must be turned off then on again to establish
the new router/controller switch setting.
Close and secure the lid.
The controller, supplied in AC and DC versions, connects to an appropriate
power source. Located on the bottom of the controller is an ON/OFF toggle
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