Radio Influence And Interference In Installation Environments - Patlite WIO-B1T Instruction Manual

Wireless Control Unit

6.4. Radio Influence and Interference in Installation Environments

Check the following installation conditions, as they may significantly shorten the spacing distance.
• When there is an obstacle (metal objects such as steel plates, wire mesh, or other noise-generating devices such
as concrete walls or welding machines) between the products
• When there is another wireless device nearby
• When strong wireless radio waves are constantly generated (e.g., video streaming over a wireless LAN, microwave
oven use, and so on.)
• The maximum number of units that can be installed in the same building is 40 units.
* The number of units is the total number of transmitters, repeaters, and receivers.
In addition, it is important to secure a "clear view space (Fresnel zone) free of obstacles" between products for
stable communication. Installation should be done paying attention to securing the Fresnel zone as described below.
Transmitter
Transmitter
L
L
Line of sight distance
100m
50m
10m
Fresnel Zone
D
Receiver / Repeater
D
Fresnel zone diameter
3.6m
2.6m
1.2m
Obstacles (wall, floor, ceiling, pillar, building)
Receiver / Repeater
Fresnel Zone
18
6. For Proper Use of This Product