6
AA800EZe rev.04
AA800EZe
1.4.6. Outdoor Temperature Sensor
In order to use an outside temperature sen-
sor a plug-in card must be inserted in the
“Outdoor” port of the Agri-Alert (be sure
to line up the ground connector of the card
with the quick connect pin of the bottom
board). The outdoor temperature plug-in card
is optional.
Outdoor Card
Ground
Connector
Quick
connect
Pin
“OUTDOOR” portOutside
temperature
sensor
1.4.7. Relays
The Agri-Alert has 2 built-in relays which can
be used to control various on/off devices.
Relay outputs provide 24VDC or AC with a
maximum current of 2A. They can either be
activated manually or when an alarm occurs
in a zone.
Normally
Open (N.O.)
Connection
N.O.
On/Off
Device
Normally
Close(N.C.)
Connection
N.C.
On/Off
Device
1.4.8. Phone Hookup
A plug-in card must be inserted in the “Phone
Card” port of the Agri-Alert to use dialing
functions (be sure to line up the ground con-
nector of the card with the quick connect
pin of the bottom board). The phone plug-in
card is optional.
If dialing functions are used, the system has
priority over other users when dialing out.
This means the system disconnects all other
phones on the line when dialing out in case
of emergency.
1.4.9. Connecting the Earth Ground
The earth ground terminal of the Agri-Alert must
be connected to the earth ground as follows.
Use a rod at least 5/8 inches (16 millimeters)
in dia meter at least 10 feet (3 meter) long.
The rod must have a clean metal surface
free of paint, enamel or other nonconducting
substances. Drive the rod at least 10 feet
(3 meters) into the ground. If the bedrock is
more than 47 inches (1.2 meters) deep, drive
the rod into the ground to bedrock level and
bury any remainder horizontally at least 2 feet
(600 millimeters) below ground level. If the
bedrock is less than 47 inches (1.2 meters)
deep, bury the rod horizontally at least 2 feet
(600 millimeters) below ground level (ref.
Article 10-702, 3d of the Canadian Electricity
Code C22.10-99).
The rod must be connected to the wire de-
scribed above. It is recommended to let the rod
going out of the ground to connect it. The wire
length must not exceed 50 feet (15 meters).
IMPORTANT: The earth ground terminal
must be connected to a proper ground
to protect the electronic components
from damage due to lightning surges and
electrostatic discharges. Do not use the
electrical ground for this purpose
If outdoor connections are used, mount
the enclosure as close as possible to the
entry point of the outdoor wiring
A faulty earth ground connection im-
mediately voids the system warranty
without further notice.
10ft (3 m)
Bedrock
<47 in( 1.2 m)
EARTH
10ft (3m)
metal rod
10ft
(3 m)
2 ft
(600mm)
10ft (3 m)
<47 in( 1.2 m)
2 ft
(600mm)
Tip*
Ring
*The TIP wire is the one with the
most positive voltage reading on a
voltmeter.
Phone Card
Phone line OUT
Phone line IN
Phone card connector
Ground
connector
Quick
connect pin
Phone Hookup
CAUTION – To reduce the risk of fire, use only No. 26 AWG or
larger telecommunication line cord.
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