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8. Installation
1. The dry contact sensor (R718J2) has a built-in magnet (as
Figure 1 below), which can be attached to the surface of an
iron object during installation, which is convenient and
quick.
In order to make the installation firmer, please use screws
(purchased separately) to fix the device to the wall or other
surface. (as Figure 2 below)
Note: Do not install the device in a metal shielded box or in
an environment surrounded by other electrical equipment to
avoid affecting the wireless transmission of the device.
1
2
3
4
1
2
Wired smoke sensor
3
4
DC24V+
External
power
DC24V-
supply
Dry contact
DC24V+
DC24V-
External
power
supply
2. After the dry contact sensor detects the change of the dry
contact state, it will report the data immediately.
3. If the battery voltage is detected that exceeds the change
value during Min Time, the data will be reported
immediately.
4. Whether the state of the dry contact is change, a piece of
data will be reported regularly when the MaxTime comes.
Note:
When the dry contact is connected, the data status bit is
"1". When the dry contact is disconnected, the data status
bit is "0".
Dry contact sensor (R718J2) can be used in the following
scenarios:
⚫ Various switches and buttons
⚫ Dry contact output of sensor
⚫ The operating status of the equipment
⚫ State monitoring of doors and windows in home or
business
The occasion is necessary to judge the state of the sensor
through the dry contact signal.
A diagram that the dry contact sensor (R718J2)
Dry contact sensor
(R718J2)
(R718J2)
Wired smoke sensor
8
connecting to two wired smoke sensors.
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