User's Manual
Site planning & design
µltraWaveProductGuide Page 9
Relay contact ratings
The dry contact relays are single pole, double throw, Form C, latching, rated for 30 V @ 1 A max.
In Remote control mode, you can configure the relays as latching (ON by command, OFF by
command), in flash mode (ON-OFF-ON-OFF, etc. by command, then OFF by command), or pulse
mode (ON for a period, then OFF). For flash and pulse modes, the relay Active/Inactive times are
selectable. In Local control mode the relays remain active for the event’s duration or for the
selectable Hold Time, whichever is longer.
Cable ports
Each μltraWave unit includes two 22 mm (0.875 in.) cable ports. The post-mounting kit
(E4KT0300) includes two compression glands for cable sizes 5 mm to 6.4 mm (3/16 in. to 1/4 in.)
and two alternate compression glands for cable sizes 11 mm to 13 mm (7/16 in. to 1/2 in.). If
required, the enclosure can be fitted with 13 mm (1/2 in.) conduit, in place of the compression
glands.
Mounting posts/surfaces
The μltraWave units mount easily on posts with an outside diameter ranging between 4.8 cm and
11.4 cm (1.875 in. and 4.5 in.). The posts must be plumb, firmly set in the ground, and unable to
rotate or move. For areas where the ground freezes, the posts must be protected against potential
frost heaving. A 2.5 m (8 ft.) post is generally used with 91 cm (3 ft.) of the post buried in a
concrete footing. Figure 5
is an illustration of a post-mounted μltraWave unit.
Note Conduit and conduit fittings are not included.
Figure 5 Post installation and unit mounting
4.8 to 11.4 cm post
power and alarm
wiring in conduit
ground wire
ground rod
µltraWave unit
mounting height from
center of antenna to ground
ground level
buried conduit
to alarm panel
& power supply
rebar
through post
61 cm
(2 ft.)
concrete footing
91 cm *
(3 ft.)
Consult the local construction codes for information about using
concrete footings in ares where ground freezing occurs.
*