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Gain Control for Analog Voice Modules Overview

date_range 26-May-23

You can control the gain on analog voice modules in both the analog-to-digital and the digital-to-analog directions. The Rx direction corresponds to the analog-to-digital direction, and the Tx direction corresponds to the digital-to-analog direction. Table 1 shows the minimum and maximum gain for each direction and the granularity for the module.

Table 1: Ranges and Granularity of Gains for Analog Voice Modules

Module

Minimum Rx Gain

Maximum Rx Gain

Minimum Tx Gain

Maximum Rx Gain

Granularity

4WE&M

-7.1 dB

18.3 dB

-24.8 dB

0.6 dB

0.1 dB

2W-FXS

-19.4 dB

6.0 dB

-9.1 dB

16.3 dB

.1 dB

2W-FXO

-10.0 dB

15.0 dB

-13.0 dB

12.0 dB

1.0 dB

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