ClearOne comm GT1524 Outputs, System, Speaker/Line Out, 4 Wire Out, and To Telco, Aux Out

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Installation ~ LCD Programming

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.

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.

Technical Services Group ~ 1-800-283-5936 (USA) ~ 1-801-974-3760

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Contents Audio Products GT1524 Single Channel Echo Canceller GT1524 Single Channel Echo Canceller GT1524 Installation ClearOne Part No June 2002 Rev Iii Table of ContentsAppendices Introduction FeaturesSales and Customer Service Professional Services GroupTechnical Support ClearOne Communications EuMEA GmbHFront panel UnpackingControls and Connections Introduction ~ Controls and Connections Rear panelOperational Requirements Equipment placementTelephone line requirements Introduction ~ Operational RequirementsTechnical Services Group ~ 1-800-283-5936 USA ~ Connecting the unit Hardware SetupMenu trees LCD ProgrammingAdjusting a value Installation ~ LCD ProgrammingPower-Up Screen Mic/Line Aux In, 4-Wire In, and From TelcoInputs Outputs Speaker/Line Out, 4 Wire Out, and To TelcoSystem Aux OutTelco Set PasscodeRS-232 Default Meter TimeoutMeters Unit ID NumberTo adjust the volume Controlling volumeFront Panel Control MutingAnswering a call Disconnecting a callMaking a call Operation ~ Front Panel ControlOperation ~ Custom Control Custom ControlCustom controller options Technical Services Group ~ 1-800-283-5936 USA ~ Appendices Appendix a SpecificationsRS-232 COM DCE port pinout female Appendix B PinoutsControl/Status port pinout female Command structure Appendix C Serial CommandsError codes Appendix C ~ Serial CommandsGT1524 Serial Commands Return values AGCExplanation Dfltm AuxmixBaud Erle DialERL Gain FlowFPP Hook Appendix C ~ Serial Commands ExampleHookd LFPMline LVLMHP Null MuteNLP Ringen RingRxrd Return valueTerle TamodeTerl VER ToutUID This Warranty is Void if WarrantyFCC Part 68 compliance Appendix E ComplianceFCC Part 15 compliance Appendix E ~ Compliance Industry Canada complianceLimits Index Index ~ S-Z