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Start Location
End Location
Entry and Exit Angle
Number of Tests
Test Interval
Advanced Tests
For perimeters protecting critical assets and/or personnel, additional testing may be
required. Tuning the system for some or all the following intrusion types will confirm the
system's ability to detect.
Crawl Testing:
Crawl intrusions should be done with the tester's torso in close proximity, roughly 2.5 – 15
cm (1 – 6 in) to the ground. This position is often referred to as a military or commando
crawl. Crawl intrusions should not be done with the torso lifted on hands and knees, similar
to a baby crawl which is more easily detected.
Because crawling intrusions can be difficult, the test can conclude at the alarm
annunciation.
The crawling pace should be approximately 15 cm/s (6 in/s). The speed of the crawl should
be as consistent as possible. The test intruder should continuously crawl through the area
until being detected or reaching the protected side of the perimeter outside of the detection
field.
Intrusion attempts should be towards the protected resource or perpendicular to the line of
detection.
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3 m (10 ft) from the closest sensor line
3 m (10 ft) from the closest sensor line
Steep, shallow, or perpendicular angles are all acceptable
Minimum of 10 test intrusions, 10 test per 100 m (328 ft) of
sensor for cable lengths greater than 100 m (328 ft)
Minimum 30 seconds between test intrusions
Figure 81. Commando crawl (left) and baby crawl (right)
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Troubleshooting
