Adjusting Input Gain - Polycom SoundStructure C16 Design Manual

The controls for both the telephone input and output channels are described in this section.
Virtual Channel Example

Adjusting Input Gain

The telephone input gain has a range from -20 to +20 dB for adjusting the gain in the analog domain and
has a default gain of 0 dB. The gain required depends on the signal levels received from the telephone line.
Adjust the telephone gain so that during normal speech there are at least two yellow LEDs lit on the telco
receive.
The location of the telco signal meters are shown in the following figure. The input channel meters level_pre
meter corresponds to the meter next to the analog input gain adjustment on the telephone input virtual
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