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4.1.3 Physical Protection
Install the Transmitter and Receiver in locations that provide protection from accidental damage as well as from
tampering. Simple devices such as bumper posts or parking guards may be used to protect equipment from
damage from vehicles as shown in Figure 13.
DO
DONT
Figure 13 – Physical Protection
4.1.4 Best Security
Choose the location that will provide best security, yet be free from false nuisance alarms. Always locate
MicroWave 330 inside a controlled access area to prevent unwanted nuisance alarms due to random foot traffic,
vehicles, or large animals. Typically, units should be mounted 2 ½ to 3 feet (0.76-0.91m) above ground level,
and far enough inside fence to provide a clear area of protection as shown in Figures 14 & 15.
For maximum security it is necessary to overlap the ends of links so that the “dead zone” below and
immediately in front of the adjoining link is protected. A 60-foot (18m) overlap is recommended at intermediate
points, and a 30-foot (9.2m) overlap is recommended at corners. If site demands shorter overlap, increased
sensitivity will reduce dead zone, per Figure 7, but will also widen beam, per Figure 4.The offset of overlapping
links in line should be 18 inches (46cm) as shown in Figure 6. Additional protection may be added at critical
points by installing SOUTHWEST MICROWAVE, INC. Model 380 or 385 Transceiver, Model 415 PIR,
MS15/MS16 Dual Tech sensor or stacking MicroWave 330 links or stacking with Model 300B microwave link.
DO
DONT
Figure 14 – Best Security
Содержание MicroWave 330
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