Seite 9
5. Complete System Setup
After the complete battery charge of the microphone stations, these units are
immediately ready to work. On the rear side of the microphone station is an On/Off-
switch. After switching on the unit a small green LED on top of the station (in front on
the right) lights up and signals the ready status. As long as the talk button (MICRO)
is activated, this green LED is off. Instead the red LED in the MICRO button is on.
After deactivating the talk button, the green LED lights up again.
After pressing the talk button on the microphone station the connection to main unit
is made. The audio transmission is assigned to one audio channel. The appropriate
green LED on the audio board changes to red (two-color LED). A maximum of four
microphone stations can be activated at the same time. With four active stations the
fifth pushed talk button generates only a short acknowledgement (red LED of the talk
button) and switches to the regular status again. Only after deactivating one of the
other stations a new station can be activated.
That applies only to the use of ONE audio board. Using two audio boards, further
more four channels are selectable. The number of active microphone stations
increases thereby to eight.
The mixed signal of all active microphone stations is audible over the individual
loudspeakers in the microphone stations (with the correct prewiring of the main unit).
Always the active station itself does not receive this audio foldback signal for the
prevention of acoustic feedbacks. The loudspeaker of the active unit is switched off.
The chairman microphone station is equipped with three buttons instead of the single
button on the regular station. Using the PRIORITY button, all other stations are
muted. The PRIORITY button itself works in the same way as the MICRO button (It is
not necessary after pressing the PRIORITY button to press the MICRO button. The
PRIORITY button works as a talk button.). The active time is terminated here also by
pressing the button for the second time.
More deatais see: Microphone Stations, page ...
6. Using a Sound Reinforcement System
For the use of a separate sound reinforcement system it is necessary to use one of
the „audio out“ connections on the audio board. By setting the jumpers on the audio
board it is determined whether single channels or the mixed signal are fed through
these connections. The audio output are ballanced with a maximum level of +10 dBu.
7. Feeding an external Sound Signal into the System
Using the second audio input on the controller board it is possible to feed an external
signal into the systems audio chain. This signal is added to the mixed signal audible
in the loudspeakers of the microphone stations.
