User's Manual
Switching the transmitter on and off
Design with emergency stop
Unlock the Emergency Stop pushbutton by turning clockwise to switch on the 
transmitter.
Two short signals can be heard.
A red dot flashes in the LED display and an antenna symbol appears in the LC display 
during operation. 
The transmitter is switched off by pressing the Emergency Stop pushbutton once.
After pressing the EMERGENCY STOP switch, stop telegrams are sent for 2 seconds 
to switch off the system. This shut-off time is displayed on the LED display by the 
segments rotating clockwise.
To ensure faultless operation, please observe the following rules for operation precisely:  
The system to be controlled - provided the transmitter is ready for operation - can only 
be switched on if no command transmitters are activated. The command necessary 
for this is activated by the «On/Horn» key. Here a horn signal is triggered for the 
system to be controlled. After switching on the system to be controlled, this key 
is used, according to the work specifications, for repeated triggering of the horn 
signal.
Frequency switching: 
To switch the frequency, press and hold the «On/Horn» key. Now press the «Frequency 
switching» key successively. If the receiver locks on a new frequency, a horn signal can 
be heard and the system is ready for operation. 
Please observe the country-specific regulations, if applicable.
The system can also be equipped with automatic frequency switching (LBT) as an option.
Operation of the system
 6
Operation:
The red dot flashes.
FREQUENCY 
SWITCHING 
ON/HORN
FREQUENCY SWITCHING










