Messtechnik dAV-TRX, Manual, Page: 8 / 23

revision 1.0
Intercom
Operating Instructions
7.3 Operating Elements
7.4 Front Side of the Mobile Device
Power Turn device on and off Push button
Power LED Permanently on when device is powered up,
permanently off when device is switched off,
blinking when talking is possible
Red LED
Info Permanently on when battery is low,
permanently off when connection to other
station is ok and battery is ok, blinking when
there is no optical connection to other station,
blinking once when resetting to default
Yellow LED
Mic Capture audio signals Integrated microphone
Mic On/Off/(On) Switch to “On” to activate permanent talking,
switch to “Off” to deactivate permanent talking,
push to “(On)” and hold to talk temporary,
release from “(On)” to stop talking temporary
Switch button
Headset On/Off
(optional) Switch to “On” to activate headset and
deactivate speaker (full duplex mode), switch to
“Off” to deactivate headset and activate
speaker (half duplex mode)
Switch button
Headset Connection of headset 4-pole-socket screw connector
Page 8 / 23
Off
dAV-TRX
Power
Volume
Out
Mic
On
(On)
Mic Info
Volume
In
Headset
Headset
On
Off
Figure 7-1: front side of mobile device
Distributed by: Reliant EMC LLC, 3311 Lewis Ave, Signal Hill CA 90755, 408­916­5750, www.reliantemc.com