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The light group and node assignment of a particular light in the system can be set via
rotary switches ‘A’ and ‘B’ located on the bottom of the circuit board in the light head. The
switches are usually set to ‘0’ in the factory.
Rotary switch B sets the node type. If the switch is set to ‘A’, the particular node will be
assigned to the primary network and hence, it will be a primary node. If the switch is set to
‘B’, the particular node will be assigned to the reserve network and will be a reserve node.
Rotary switch A sets the light group of the light. There are 10 available light groups (i.e. 0-9)
as well as a setting to select all light groups at once.
1.
Turn the Light off.
2. Remove the bung underneath the circuit board in the light head. Set rotary switch A to
‘0’ and set rotary switch B to ‘A’.
3. Refit the bung.
4. Turn the light on.
This process can be used to force a reserve node by setting rotary switch B to ‘B’.
Since the light fixtures (i.e. AV-70 and AV-426) are designed to be installed close to the
ground, there is a high possibility that the first Fresnel zone will not be cleared because it
will be impinged by the surface of the Earth and obstruct the signal propagation between
the lights. It is therefore important to raise the heights of the lights as high as possible
(while still conforming to the required regulations) so that the antennas are higher and
more likely to clear the first Fresnel zone (or a minimum of 60% of the first Fresnel zone).
It is also important to consider other obstacles that may impact the propagation of the RF
signal such as long grass, gables, dips and crests. Furthermore, it is also important to keep
the height of vegetation around the lights as low as possible so that RF propagation is not
obstructed.
The Avlite wireless remote controller should also be raised as high as possible to clear the
first Fresnel zone and maintain signal strength between the controller and the lights within
range. The use of the control tower or other raised primary control location is therefore
essential for this purpose.
8.0 Maintenance/Housekeeping of the
AvMesh
TM
Communications System
7.1 To Force A Primary Node via Rotary Switches
7.0 Rotary Switches
