NI 9792 WSN Real-Time Gateway User Guide and Specifications
28
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Figure 19.
Network Containing Distance, Example 2
In this mesh configuration, eight end nodes in range of both R
1
and R
2
join with R
1
. This leaves one end
node stranded from the network. This can be corrected in the following two ways:
1.
Move the set of eight end nodes to where they can only communicate with R
2
. This prevents them
from possibly joining R
1
.
2.
Add an additional router that is in range of the single end node. This introduces the possibility of
creating additional hops in the network, but also guarantees coverage of all end nodes.
Specifications
These specifications are typical at 25 °C unless otherwise noted. For the NI WSN-32
xx
specifications,
refer to the device user guides.
Wireless Characteristics
Radio mode ............................................................IEEE 802.15.4
RF data rate ............................................................250 kbits/s
Frequency band
1
....................................................ISM 2.4 GHz (2400 MHz to 2483.5 MHz)
Channels
2
...............................................................11–24
G
R
2
R
1
N
N
x 1
x 8
