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UltraWave Product Guide
Page 9
Power and ground requirements
The UltraWave sensor system consumes 4 W (nominal) with a network interface card installed on
the receiver, or 3.7 W without one. Both the transmitter and receiver can operate on a wide range
of input voltages (12 to 48 VDC). The required gauge of the power cable depends on the power
supply capacity, the number of UltraWave units being powered and the lengths of the power cable
runs. In locations where AC power may not be stable or reliable, an uninterruptable power supply
(UPS) is recommended for primary power. Each UltraWave unit requires a nearby connection to a
low resistance earth ground. The following tables include power cable/load recommendations for
24 VDC and 48 VDC power supplies. The tables assume a maximum power consumption of
4 W per UltraWave pair (with NIC). The numbers in the tables are based on the power supply
being connected at one end of the perimeter, and run around in a single direction.
illustrates a 24 VDC power supply with 16 AWG power cables in a 360 m high-security UltraWave
perimeter.
Figure 5 Offset arrangement examples
Note
Senstar recommends installing a low resistance (5
or less) earth
ground at each unit. Consult the local electrical codes for grounding
information.
Note
The perimeter length can be doubled by connecting the power supply
to the central UltraWave pair and running the power cables in both
directions around the perimeter.
detection zone
protected area
beam
centerline
corner offset
55 cm (21.5 in.) mounting height
basket weave layout
for odd shaped perimeters
1 m (3.3 ft.)
9.48 m (31.1 ft.)
parallel offset
55 cm (21.5 in.) mounting height
T
R
T
R
R
R
R
R
R
R
T
T
T
T
T
T
T
T
T
T
T
T
R
R
R
T
4.74 m
(15.6 ft.)
4.74 m
(15.6 ft.)
NOTE: When specifying the Frequency Pairs for UltraWave sensors that are in close proximity to other UltraWave sensors, do not use consecutive,
adjacent numbers (e.g., use Frequency Pairs 1, 3, 5, 7, 9 rather than 1, 2, 3, 4, 5 to ensure optimal signal isolation for each sensor pair.).
