INTEGRATING THE UNIT INTO YOUR SYSTEM
VORTEX EF2211/EF2210 Reference Manual 14 Technical Support: 800.932.2774
I
NTEGRATING
THE
U
NIT
I
NTO
Y
OUR
S
YSTEM
Operating the
EF2211/EF2210
The EF2211/EF2210 can be operated in two ways: through the LCD menu on the
front panel or through RS-232. For control via RS-232, please refer to the EF2211/
EF2210 Programming Guide, which includes programming tips as well as the
EF2211/EF2210 RS-232 commands. For operation using the PC control software,
Conference Composer, please refer to the Conference Composer User Guide.
Use Conference Composer software to easily configure the EF2211/EF2210 with a
PC, or refer to the Applications Guide for different configurations that are already
programmed into factory presets.
I
NPUT
S
ETTINGS
Set Input 1 for
Mic or Line Level
Configure Input 1 for mic or line level using the LCD menu (See “Level (Input 1)” on
page 30) or Conference Composer Control Software (See the Conference Composer
User Guide). Setting the input to mic level adds 33 dB of gain to the input stage. If
you are connecting one microphone to the device, choose Mic level (with the default
input gain value of 15 dB, a total of 48 dB of gain is applied to the input). If you are
connecting an external automatix microphone mixer to the input, choose Line level.
Select Phantom
Power for Input 1
Turn phantom power On or Off for Input 1 using the LCD menu (See “Phantom
Power (Input 1)” on page 30) or Conference Composer Control Software (See the
Conference Composer User Guide). Phantom power should be turned On for con-
denser and electret microphones.
Set Levels on Line
Input Channels
Set the line input channel gains (Channels A-B) to match the nominal level of the
incoming equipment. The line inputs have a maximum nominal level of 0 dBu. If
your incoming line level inputs have a higher nominal level than 0 dBu you will want
to use a pad to remove the level.
If you are connecting from equipment that has RCA plugs, you will most likely need
8 dB of gain on the Input and -8 dB of gain on the Output.
C
ALIBRATION
When using the factory default, Preset 0, the following calibration can be used.
Set Mic/Line
Input Gain
In Preset 0, Automatic Gain Control (AGC) is On and the microphone gain on Input 1
is set to 15 dB. The AGC will compensate for the microphone gain. If you are using
a ceiling microphone, set the microphone gain to 28 dB.
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