Polycom EF2241 - Manual (Page 18)

I
NTEGRATING THE
EF2241 I
NTO
Y
OUR
S
YSTEM
V ORTEX EF2241 Reference Manual 16 Technical Support: 800.932.2774
you should increase your input gain by 15 dB. If the meter shows an average gain of
+10 dB, you should decrease your input gain by 10 dB.
Set Levels on Line
Input Channels
Set the line input channel gains (Channels A-D) 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.
Figure 9. AGC Meter on the Diagnostics page of the Conference Composer soft-
ware. The gain adjustment is the same gain control on the Mic/Line Inputs page in
Conference Composer.
I F THE AGC M ETER SHOWS ... A DJUST THE I NPUT G AIN IN THIS WAY .
positive gain Increase gain by the level
shown in the box.
negative gain Decrease gain by the level
shown in the box.
an average level of 0 dB You’ve set the Input Gain
to a good level!
Table 1: How to set the Input Gain using the AGC meter on the Conference
Composer Diagnostics page.
AGC Level Meter
Read AGC level
Adjust Input Gain here