StudioTech 233 manual Operation, Conclusion, Talkback to Intercom Functions

Page 28

of how they impact the Model 233’s operation can lead to many interesting and powerful uses.

Talkback to Intercom Functions

The last two switches in switch assembly SW2 are used to configure the talkback to intercom functions.

Talkback 1 to Intercom Function Mode

Switch SW2-11 configures whether the talkback 1 button will allow talkback audio to be sent to pin 2 of the intercom interface.

Figure 21. Talkback 1 to intercom pin 2 settings

Two modes are available:

Disabled: In this mode the talkback 1 button will not allow talkback audio to be sent to pin 2 of the intercom interface.

Talkback 1 to intercom interface pin 2: In this mode the talkback 1 button will control the routing of talkback audio to pin 2 of the intercom interface. Pin 2 is channel 1 of an RTS intercom system.

Talkback 2 to Intercom Function Mode

Switch SW3-12 configures whether the talkback 2 button will allow talkback audio to be sent to pin 3 of the intercom interface.

Two modes are available:

Disabled: In this mode the talkback 2 button will not allow talkback audio to be sent to pin 3 of the intercom interface.

Figure 22. Talkback 2 to intercom pin 3 settings

Talkback 2 to intercom interface pin 3: In this mode the talkback 2 button will control the routing of talkback audio to pin 3 of the intercom interface. Pin 3 is channel 2 of an RTS TW intercom sys- tem. For a single-channel Clear-Com intercom system pin 3 is channel 1.

Conclusion

Once the eighteen switches have been set to the desired Model 233’s operating con- figuration, it may be time to reattach the security plate. The exception is if the trim pots associated with the line inputs and intercom sidetone (null) need to be adjust- ed. Details are provided later in this user guide. The plate attaches using the four rubber bumpers. They should be hand- tightened only; no tools are to be used.

Operation

At this point the desired input, output, and power connections should have been made. The button labels may have been revised. After carefully reviewing the appli- cation, the configuration switches should have been set. Normal operation of the Model 233 can now begin. The unit will begin functioning as soon as a power source is connected. As previously dis- cussed, power for the Model 233 can be provided by an intercom line or an exter- nal source of 24 volt DC. It’s important to highlight the fact that the Model 233 is an active device. Audio signals will not be

Issue 1, September 2007

Model 233 User Guide

Page 28

Studio Technologies, Inc.

Image 28
Contents User Guide This page intentionally left blank Table of Contents Issue 1, September Model 233 User Guide What This User Guide Covers IntroductionSystem Overview System Features Microphone InputMain Output Talkback FunctionsDynamic Range Control User Controls and Status IndicatorsFlexibility Cue Sources SidetoneHeadphone Output Power Sources Intercom InterfaceAudio Quality and Protection Auxiliary RelayConfiguration ConnectorsAdditional Connector Locations Multi-Pin Headset ConnectorsOptions Installation and SetupSystem Components Headphone Output Line-Level Talkback Outputs Line Inputs External Power Input Configuration Pushbutton LabelingMicrophone Preamplifier Gain and Phantom Power Microphone Preamplifier GainPhantom Power On/Off Headphone Source SelectionLeft and right channel headphone source selection settings Headphone Output Mode Headphone output mode settingsMain Output Button Mode Operating ModesTalkback 2 Button Mode Talkback 1 Button ModeTalkback 1 Button Function Talkback 2 Button Function Sidetone ModeMain Output Source Reverse Left/Right Mode Dual-Channel or Stereo ModeHeadphone Output Operating Modes Minimum Level Mode Main Button ModeRelay Mode System ModeTalkback 1 to Intercom Function Mode Talkback 2 to Intercom Function ModeOperation ConclusionMain Output Button and LED Indicators Pushbutton Switches and Status LEDsMain Output Button Modes Talkback 1 Button and LED Indicator Talkback 2 Button and LED IndicatorTalkback 1 Button Modes Talkback Output 2 Button ModesLevel/Level Mode Level/Balance ModeMonaural Headphone Output Level Control Operation Sidetone OperationAdjusting the Line Input Trim Pots Advanced OperationTechnical Notes Intercom Interface Sidetone AdjustmentGrounding and Shielding Intercom Channel Crosstalk Intercom Audio LevelsConnecting an IFB Circuit Phantom Power External Power SourcesSymptoms of Insufficient Power LED Colors Additional ConnectorsTravel Case Issue 1, September Model 233 User Guide Pushbutton Backlighting Remote Control/Tally Connections P18Compressor Circuit P19Specifications General AudioAppendix a