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Page 1: ...ed www studio tech com 50655 0618 Issue 1 User Guide Issue 1 June 2018 This User Guide is applicable for serial numbers M371A 02501 and later with application rmware 1 1 and later and Dante rmware 1 0...
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Page 3: ...A User Guide Issue 1 June 2018 Studio Technologies Inc Page 3 MODEL 371A INTERCOM BELTPACK Table of Contents Revision History 4 Introduction 5 Getting Started 7 Operation 12 Technical Notes 16 Speci c...
Page 4: ...Issue 1 June 2018 Model 371A User Guide Page 4 Studio Technologies Inc MODEL 371A INTERCOM BELTPACK Revision History Issue 1 June 2018 1 Initial release...
Page 5: ...ing the STcontroller software application Con gurable parameters include electret microphone powering microphone pre ampli er gain sidetone level and talk button operation User features include microp...
Page 6: ...support electret microphones can be enabled if necessary The output of the microphone preamp and compressor is routed to an analog to digi tal converter ADC section that supports a sampling rate of 4...
Page 7: ...et interface The physi cal interconnection is made by way of a Neutrik etherCON RJ45 receptacle While compatible with standard RJ45 plugs etherCON allows a ruggedized and locking interconnection for h...
Page 8: ...ted etherCON connector or a standard RJ45 plug The Model 371A s Ethernet interface supports auto MDI MDI X so that a cross over cable will never be required Headset Connection The Model 371A provides...
Page 9: ...ll up pull down val ues available The Model 371A can serve as the clock master for a Dante network but in most cases it will be con gured to sync to another device that is serving as the grand master...
Page 10: ...12 or P48 phantom power that may be required for balanced condenser capacitor microphones This should not pose an issue as this type of microphone is essentially never associ ated with a headset that...
Page 11: ...e au dio can also be disabled by selecting Off Selecting Off would be useful only in spe cial applications such as during trouble shooting or where user talk audio is being returned as part of their l...
Page 12: ...mounted 4 pin female XLR connector should be plugged into the headset connector Using the Studio Technologies STcontroller software application the unit s con gura tion should have been selected to m...
Page 13: ...g is taking place it s possible that changing the mic preamp gain to the higher setting would be ben e cial Note that due to the design of the circuitry the compressor active LED will function whether...
Page 14: ...e sidetone audio should be excellent and will provide Model 371A users with a con dence signal that they are actively talking to other intercom users The exact sidetone level is con gured from among v...
Page 15: ...s the orange LED associated with the call button will not light By using a 20 kHz tone for call signaling the Model 371A is compatible with legacy intercom equipment including the vener able RTS BP 32...
Page 16: ...l 371A will respond to any such request and force all talk channels to their disabled state Technical Notes IP Address Assignment By default the Model 371A s Ethernet in terface will attempt to automa...
Page 17: ...hernet per formance a network that supports VoIP Quality of service QoS capability is rec ommended This can be implemented on virtually all contemporary managed Ether net switches There are even speci...
Page 18: ...USB interface The Model 371A implements a USB host function that directly supports connection of a USB ash drive The Model 371A s MCU updates its application rmware using a le named M371A bin The upda...
Page 19: ...ed reverse the steps and reat tached the cover using the four machine screws Note that upon power being applied to the Model 371A if a connected USB ash drive doesn t have the correct le M371A bin in...
Page 20: ...ng STcontroller The Model 371A offers a second meth od of activating the mic kill function This allows a data signal in additional to the Device ID command to activate mic kill The STcontroller softwa...
Page 21: ...ingle channel sum combination of audio input 1 and audio input 2 Compatibility intended for connection headsets with nominal impedance of 50 ohms or greater Maximum Output Voltage 3 8 Vrms 1 kHz 150 o...
