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lead to other damages e.g. short circuit, fire or electric shock.
The product must not be installed or used in places where a risk of explosion may exist.
Do not touch antenna connectors with live parts.
The product should only be used in a case adequate for mains-voltage if applied!
The Relay Board is a state-of-the-art product. However, there is a risk of danger if installation or operation is performed by
unqualified personnel
If the relay contacts switch mains power supply, the electronics has to be operated in a corresponding installation casing.
Attention. Extreme danger!
When opening the product, live components may be touched. Isolate SHR-12 L4 from the mains power supply before
opening. Ensure that all connected devices and components are also disconnected from the mains-power supply.
3
System operating range
The system SH-12 is designed for a large operating range of many hundred meters. Walls including steel reinforced concrete can be
penetrated. The maximum range can be achieved under optimum conditions and by line-of-sight contact between transmitter and
receiver without disruption by external high frequency disturbances.
The following are possible causes that could reduce range of operation:
Obstructing buildings, vegetation or other factors will substantially reduce the operating range.
The distance between the antenna and the operator's body or other conducting objects (e.g. Earth) may influence the working
range.
Background "electrical noise" could be relatively high so that the signal-to-noise-ratio may decease and therewith the operating
range. Also other devices, with similar operating frequency, operated in the neighbourhood of the receiver may reduce the
sensitivity.
Operating the receiver adjacent to badly shielded electronic components (e.g. PC's) that can produce electromagnetic distortion,
may severely reduce the range of operation and could result in intermittent operation.
Adjustable and open components should not be adjusted or modified.
4
Description
SHR-12 L4 needs a power supply of 12....30V DC. The used supply
has to deliver about 200mA with active relays.
The transmitter push buttons or digital inputs of the module CX-12 T
are assigned to the 4 relay functions.
You may select between Key- or Toggle-function separately for each
relay by putting Jumper 1 to 4 in position 1:1 (key function) or in
position ON/OFF (toggle function).
If the key function (1:1) is selected the relays will stay activated as
long as the transmitter key remains active, while the toggle function
permits to switch on and off the relay with the same transmitter key
(each signal command puts the relay into the opposite state).
Jumper X5 determines the radio frequency where f1 is standard. If
you would like to use f2, please note that the corresponding
transmitter also has to be switched to f2.
5
Installation
For the location of the receiver module, select a place which is not shielded by conducting objects and position the antenna in such a
way that it is not subject to interference from the rest of the circuit and is parallel to the transmitter antenna.
Connect the supply voltage to the input 12...30V DC and the SUPPLY LED will turn on.
Take care of the technical data and of the supply polarity. Maximum supply voltage is 30V DC. Greater supply voltage
destroys the receiver.
Programming transmitters or keys:
In order to learn a transmitter or a key it is necessary to switch from the normal receive mode to a learn mode by specific pressing of
the LEARN/ERASE button. After that a transmitter button has to be pressed in a distance of no less than 1m. Following learn modes
are available:
Learn mode I:
Learn a transmitter with acknowledgement of the transmitter signal. Press 1x short the LEARN/ERASE button. The
light of the LED beside the button interrupts 1x every 2s.
Learn mode II:
Learn a single key with acknowledgement of the transmitter signal. Press 2x short the LEARN/ERASE button. The
light of the LED beside the button interrupts 2x every 2s.
Learn mode III:
Learn a transmitter without acknowledgement of the transmitter signal. Press 3x short the LEARN/ERASE button.
The light of the LED beside the button interrupts 3x every 2s. This feature is only compatible to transmitters from
Version HSV xx.20.
Learn mode IV:
Learn a single key without acknowledgement of the transmitter signal. Press 4x short the LEARN/ERASE button. The
light of the LED beside the button interrupts 4x every 2s. This feature is only compatible to transmitters from Version
HSV xx.20.
Antenna
-
-
4
LEARN/ERASE
X5
X5
X1
X1
X2
X2
X3
X3
X4
X4
SUPPLY LED
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