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    Gain Control for Analog Voice Modules Overview

    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

    Modified: 2010-08-05