24
If it is not possible to establish network it may be that the devices have exceeded the connectivity
range within that given environment. Reposition the slave device ideally closer to the master device,
or closer to a slave device that has successful communication and repeat the force communication
process. Repeat this process until communication is established.
i
If a configured device cannot be moved closer to an adjacent device, utilising the 10m or 20m cable
accessory it can be removed from Det and elevated to improve wireless connectivity.
1.7.3
Network Topology
Detective Net can be deployed in various standard topologies e.g. a ring or star network.
Figure 6: Network topology
To ensure a robust and reliable network and also to maximize the benefits of the mesh network the
following best practices should be followed:
• A network must contain only one master device.
•
A device must not be deployed if the low battery LED is illuminated.
• Place the master device as close as possible to the centre of the network.
• Wherever possible place slave devices such that wireless communication to the master is direct
and network hopping is not necessary.
• Place slave devices as close as practically possible to other slave devices as this will increase
the robustness of the mesh network allowing signals to be transmitted back to the master
device via several possible slave devices.
• Although Detective Net devices have an auto power down feature, manually powering down at
the end of a deployment will increase device battery life.
SLAVE
SLAVE
SLAVE
SLAVE
MASTER
SLAVE
SLAVE
SLAVE
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