Quick Start Guide
ManualsBrandsIntelligent Automation ManualsComputers & AccessoriesARGUS Guardian is a fence-mounted, RF-based perimeter intrusion detection system. This system uses a network of unattended wireless sensors to create a wireless trip wire along a perimeter to provide early warnings against intrusions.
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4) The fence signal cannot penetrate tree trunks, light posts, cars, etc. If one of these obstacles is in
the direct path between two nodes, the link may still work, but the region of sensitivity will be
along a reflected path around the obstacle, rather than through the obstacle. Thin “RF
transparent” obstacles (many plastics, thin wood signs, light foliage, camouflage netting, fabric,
etc.) can usually be penetrated directly.
5) The installation terrain should also be taken into consideration when deploying the system. The
fence signals cannot penetrate the ground, nor will they go down into deep dips and gullies
between two nodes. Thus, the nodes should generally be placed in such a way that the terrain
between adjacent nodes is more or less even.
6) The system can be used with various antenna types. The connection on the top of the node is a
TNC female jack, so the mating connector (generally part of the antenna itself) must be a TNC
male plug. In general, longer antennas will have higher gain patterns, and may offer slightly
longer operating ranges. Note that the antenna must be rated to operate in both the 2.4GHz
and 900MHz bands.
7) In the event that a working node suddenly begins reporting low RSSI and/or PRR measurements
and possibly begins false triggering frequently, check to make sure that the installation method
has not failed (e.g., the tripod fell over).
8) In general, avoid placing links parallel to a nearby building or other strong reflector. Part of the
RF signal energy will travel along the reflected path, so you may inadvertently have a sensitive
region along that reflected path (although in some circumstances this may be acceptable or
even desired).
9) In general, avoid placing links parallel to a high traffic road. The RF signal energy will bounce off
of vehicles driving along the road and may sometimes trigger the fence (although in some
circumstances this may be acceptable or even desired).
10) Avoid placing links running in between two strong reflectors, such as running down a long
alleyway. The RF signal energy will travel along many reflected pathways simultaneously, such
that the link becomes completely insensitive to an intruder passing through. Running across
such an alleyway is fine, just not along the alleyway lengthwise.