Technical data

Operation Manual ACK-540 RF+
E&OE
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2.4 New-synchronisation of the radio channel
The ACK-540 RF+ is equipped with the newest radio technology allowing in the easiest manner to make a
new-synchronisation.
• In contrast to conventional or older wireless keyboards on
the market this keyboard only requires you to press the
PAIRING key on the back side only 1 time, whereby the
new synchronisation signal is transmitted to the USB
receiver. Thereby a complete, extremely comfortable
handling from the user’s location (e.g. a sofa) is possible
without the need to stand up for pressing the
synchronisation key of the receiver, which is usually
located in the USB port of the PC.
• The process of synchronisation can take up to 10 seconds
and is signalised by the flashing of the PAIRING-LED
(middle LED on front side of the keyboard),
which turns off after successful synchronisation.
The keyboard is now ready for use and functional.
• Check now the functionality of the keyboard as described under point 2.3.
Advise:
One further benefit of this newest radio technology is the availability of a large number of possible,
independent from each other „radio channels“ (16 channels *2
16
Bit = 1.048.576 possible radio
connections or even IDs) to ensure a trouble-free and secured operation of several wireless keyboards in
one room respectively in a transmitting/receiving sector of approx. 10 m.
If the keyboard does not work even after new-synchronisation, you have the following options to solve this
problem:
• Repeat the process including the hardware reset of the USB receiver (conventional
synchronisation) by pressing at first the LED key on the USB receiver (blue LED of
the USB receiver flashes 3 times in a row) and then the PAIRING key on the back
side like mentioned above. In very rare cases it is necessary to repeat this routine
several times until the right „radio channel“ is found.
• In case your USB receiver is attached to an USB hub, you should
install it directly
on the USB connector of your notebook or desktop.
• During the procedure of synchronisation the keyboard should be located close to the USB receiver to
make sure, that the immediate environment has no harmful influence on the radio transmission (for
instance reduction/interferences due to metal cases, other sources of interferences etc.).
• Ensure that you only use batteries with full loading capacity. In case of doubt, as a precaution change the
old batteries to new ones before next synchronisation.