Vortex Media VTX 1000 - Manual (Page 89)

Mic/Line Inputs
The VTX Mode Option for Input B needs to be selected so that the SoundStation VTX 1000 can make
wideband audio calls.
Matrix Mixer
The matrix mixer will need to be changed from the default settings in order to use Output B for the Interface
Module, Output D for the subwoofer, Output A for the video codec, and Output L for the loudspeaker.
Inputs 1-4 need to be assigned to Outputs A, B, and T so that the people on the far end of a SoundStation
VTX 1000, video codec, or telephone hybrid call can hear the local microphones. The cross-points are
colored blue to indicate that they are gated to Outputs A, B, and T.
The Interface Module (Input B) needs to be assigned to all outputs except Output B. If Input B is assigned
to Output B, then you will create a loopback inside the Vortex EF2241. This will cause the far end of the
SoundStation VTX 1000 to hear an "echo" of themselves although it is an electronically created echo and
not an acoustic echo. The same logic applies to the video codec (Input A / Output A) and the telephone
hybrid of the Vortex EF2241 (Input T / Output T).
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