Talk keys
Press the 4w talk key down for momentary operation or up to latch it on. The red
LED will illuminate. The 4w audio input will dim the incoming loudspeaker audio for
that channel (this may be defeated or adjusted via the web server, more of that
later).
When the talk key is pressed the IFB input, which is normally routed to the four wire
output, will be dimmed in level or cut as required (again selected via the web server).
Vox lights
These will illuminate green when incoming audio above -36dBFS (or -18dB ref. PPM
0) is present on the four wire input. When audio is removed they will remain
illuminated for approximately 10 seconds.
IFB mon
The IFB monitor button enables the user to listen to the incoming IFB audio,
especially useful as a confidence check. The button will illuminate blue when the IFB
is being monitored.
When selected the incoming audio monitoring for that channel is switched away
from the four wire input to the IFB input. Press again to switch back to incoming
audio.
Group talk
This key enables the user to talk to a selection or all of the four wire outputs.
The selection may be programmed in the web server. When selected all
programmed keys will illuminate when Group Talk is activated. Any keys that are
latched to ‘talk’ but not programmed to the group will switch off while group talk is
active.
Mic cut and Hot mic output, loudspeaker cut.
There is a ‘hot mic’ output that is normally on (regardless of the talk key positions)
available as a network output. Selecting Mic cut will kill the microphone output to all
the four wire circuits and to the ‘hot mic’ output. The switch will illuminate blue
when the mic is cut.
The internal speaker will automatically cut when a headset connector is plugged in.
Mixers
There are two 3:1 and one 2:1 Dante mixers included in the unit, they are available
for mixing four wire outputs as required.
