1
Mode of operation
The transmitter is able to transmit coded signals to a matched receiver via radio transmission. The operation corresponding to these
signals depends on the receiver and its wiring.
It should be noted that for applications that could put human life at risk, by using radio connection there is always
present a potential hazard due to extraneous disturbances.
The Operating Instructions need to be followed at all times.
It is forbidden to modify or change component parts of these product.
2
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.
3
Description
The transmitter is able to control up to 8 different functions (pushing the shift button enables functions 5-8) of a matched receiver (e.g.
SHR-12 K4). The user gets information about the radio system and the communication by following visual and auditory signals:
LED 1 (blue) flashes 3 times per second while pressing a button: Proper reception is acknowledged
• • • •
LED 1 (blue) double-flashes 3 times per second while pressing a button: Proper reception is
acknowledged and transmitter battery is low
•• •• •• ••
LED 1 (blue) flashes often within 2 seconds: The receiver does not answer
•••••••••••••••••
LED 2 (red) blinks 3 times: Weak receiver supply
• • •
LED 2 (red) blinks 8 times: Critical receiver supply
• • • • • • • •
LED 3 (green) lights: SHIFT Function active
――――――――
1 x Beep = switch on acknowledgement received
♪
1 x Beep = switch off acknowledgement received
♪
3 x Beep after 2 seconds: No switch on acknowledgement received
♫ ♫ ♫
3 x Beep after another 2 seconds: No switch off acknowledgement received
♫ ♫ ♫
SH-12 receivers acknowledge a proper reception by using the weak receiver supply signal.
Each transmitter has an individual serial number. If more transmitters for one receiver are used, than each transmitter must be
programmed to the receiver.
Addressing
Press the Shift-Button 9 times in quick sequence to enter the configuration mode. The green LED lights up and a melody sounds. The
next button press will define the address length.
Button 1 = Address length 1; Button 2 = Length 2; Button 3 = Length 3; Button 4 = Length 0 (Addressing deactivcated)
A further melody sounds and confirms the input.
Once adressing is activated, you have to enter the address first and then you can execute the command. As soon as the address is
entered completely the green LED lights up. Subsequently the command can be entered by pressing a button as usual. If the address
has been entered to slow, the red LED lights up. In this case the input process must be repeated from the beginning.
The transmitter will be able to control up to 8 functions of up to 64 receivers individually, if the adressing function has been used within
the learning process.
Example:
The receiver has learned the transmitter with the address 234. Now button 1 should be transferred.
The input sequence is 2 – 3 – 4 – 1.
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