StudioTech M45-00151 manual Issue Preliminary 2, March Model 45 User Guide

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unit. Power can be provided by the con- nected intercom circuits or by way of an external source of 24 volts DC. The final step to achieve correct performance is for the auto null function on each Model 45 to be activated. Refer to Figure 9 for details.

Figure 9. Two Model 45 units connected as a universal 2-wire-to-2-wire bridge

Issue Preliminary 2, March 2009	Model 45 User Guide
Page 26	Studio Technologies, Inc.

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Contents User Guide This page intentionally left blank Table of Contents Issue Preliminary 2, March Model 45 User Guide Introduction Model 45 Front PanelWire Party-Line Interface Analog Hybrids with Auto NullingWire Interfaces Pro Audio Quality Special ApplicationsSimple Installation Design PhilosophyLocating the Model InstallationShipping Carton Contents Protecting the Enclosure Rack Mounting the ModelWire Audio Inputs and Outputs Wire Line InputsWire Party-Line Intercom Connections Wire Line OutputsModel 45 Power Source Adapter cable wiring diagramExternal 24 Volts as the Power Source Configuration Initial OperationModel 45 Provides 2-Wire Party-Line Power Source Auto Null Button OperationAuto Terminate Disable Operation Wire Mute during Auto NullExternal 24 Volt DC Power Source Issue Preliminary 2, March Model 45 User Guide Wire Circuit Serves as the Unit’s Power Source Level MetersAuto Null Detail of front panel showing auto null sectionAuto Terminate Disable Technical Notes Software Version DisplayTwo Units can be a TW-12B Replacement Issue Preliminary 2, March Model 45 User Guide Specifications General AudioAppendix a Appendix B Appendix C This page intentionally left blank