Ericsson LBI-39224 manual Channel Selection

LBI-39224

restore the CEC/IMC Manager configuration database for the selected interface module.

Channel Selection

Select a channel (1 thru 32) for configuration from the CEC/IMC Manager channel list box, only one channel may be selected at a time. The selected channel and its configuration data will be displayed in the edit fields above the CEC/IMC Manager list box.

Input Signal Level (dBm)

This setting establishes the signal level in dBm (600-ohm impedance; 0 dBm = 1 milliwatt) applied to the selected channel's line input. Enter (type) the required value in the text box. The setting should be equal to the voice peak (test tone) level applied to the channel's line input. Voice peak levels are +10 dBm greater than average voice levels. Valid range is -25.0 dBm to 12.0 dBm, adjustable in 0.5 dBm increments. The program automatically rounds-off non-0.5 dBm fractional entries to the nearest 0.5 dBm. Input Signal Level default = 0 dBm.

NOTE

If Automatic Level Control (ALC) is disabled for the selected channel, subtract 1.5 dBm from the required Input Signal Level setting. For example, if the required input signal level is -10 dBm, enter -11.5 dBm. ALC is disabled by setting the ALC text box to "NO."

LBI-38938 contains a line level adjustment overview section which contains general information and general recommendations for both input and output level settings.

Output Signal Level (dBm)

This setting establishes the signal level in dBm (600-ohm impedance; 0 dBm = 1 milliwatt) sent out by the selected channel's line output. The setting specifies the voice peak (test tone) level sent out by the channel. The valid range is -25.0 dBm to 13.0 dBm in 0.5 dBm increments. Select the required value from the drop-down list box. Output Signal Level default = 0 dBm.

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