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Installation ~ LCD Programming
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AGC.
The input can use automatic gain control (AGC). This feature keeps softer and
louder talkers at a consistent transmit level. This feature is disabled when shipped
from the factory. The target gain is 0dB and adjusts at 2dB per second. The AGC
start adjustment is -20dB, but will adjust only +6dB. Adjustments will not be made
at .5dB on either side of the target (0dB).
Outputs
There are four main submenu under the Outputs menu tree: Speaker/Line Out, Aux
Out, 4 Wire Out, and To Telco. Each of these submenus contain the same menus at
the next menu depth: Gain Adjust and Mute. Aux Out also features an Aux Out Mix
parameter, described below. Each parameter is applied to the respective outputs.
Speaker/Line Out, 4 Wire Out, and To Telco
Gain Adjust.
This adjusts each output’s gain (ranging between -20dB and 20dB), in
conjunction with the LCD readout and the LED bar meter. Default is 0dB.
Mute.
This parameter mutes a particular output channel. Default is Off.
Aux Out
Gain Adjust.
This adjusts each output’s gain (ranging between -20dB and 20dB), in
conjunction with the LCD readout and the LED bar meter. Default is 0dB.
Mute.
This parameter mutes a particular output channel. Default is OFF.
Aux Out Mix.
This parameter selects Mic/Line In and/or Aux In to Aux Out.
System
The System menu allows you to view five parameters: Lock Panel, Set Passcode,
RS-232, Telco, and Unit ID. The first four may also be adjusted.
Lock Panel
The GT1524 can be secured from unauthorized adjustments by locking the front
panel and establishing a user passcode. Menu items can still be viewed when the
panel is locked, but settings cannot be altered or entered until the panel is unlocked
by entering the appropriate passcode.
If you enter a passcode
and unlock the system, you
must lock it again after
making any changes. Otherwise the
panel will remain unlocked and
accessible to anyone.
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