Polycom EF2241 manual Set Levels on Line Input Channels, If The Agc Meter Shows

INTEGRATING THE EF2241 INTO YOUR SYSTEM

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.

Adjust Input Gain here

AGC Level Meter

Read AGC level

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.

Set Levels on Line Input Channels

IF THE AGC METER SHOWS...	ADJUST THE INPUT GAIN 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.

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.

VORTEX EF2241 Reference Manual 16 Technical Support: 800.932.2774