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Summary of Contents for 45DR

Page 1: ...s reserved www studio tech com 50015 0115 Issue 2 User Guide Issue 2 January 2015 This User Guide is applicable for serial numbers M45DR 00151 and later with application rmware 2 1 and later Model 45D...

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Page 3: ...Model 45DR User Guide Issue 2 January 2015 Studio Technologies Inc Page 3 Table of Contents Introduction 5 Installation 9 Con guration 12 Operation 14 Technical Notes 18 Speci cations 22...

Page 4: ...Issue 2 January 2015 Model 45DR User Guide Page 4 Studio Technologies Inc This page intentionally left blank...

Page 5: ...re converters The Model 45DR is compat ible with the latest broadcast and audio equipment that uses Dante technology An Ethernet connection is all that s required to make the Model 45DR part of a soph...

Page 6: ...d using two Model 45DR Interfaces A Model 45DR is connected to each party line circuit as well as the Dante network The Dante Controller software application will then be used to route the audio chann...

Page 7: ...uency response and high return loss nulling even when presented with a wide range of party line conditions Unlike telephone line POTS oriented DSP based hybrid circuits the Model 45DR s analog circuit...

Page 8: ...and received from multiple Model 45DR units A Model 45DR feature overcomes this limitation detecting the call light activity and re generating it again as a 20 kHz tone in the applicable audio path Th...

Page 9: ...of the Model 45DR Con nections to one or more party line user devices or an existing party line intercom circuit will be made using one of the 3 pin XLR connectors An Ethernet data connec tion will be...

Page 10: ...is required when aligning the front panel with the LEDs and auto null push button switch that protrude through both the Model 45DR s chassis and front panel Tighten the four screws only after a carefu...

Page 11: ...put is terminated on a 4 pin female connector As previously discussed in this guide an Ethernet connection that provides Power over Ethernet PoE can serve as the Model 45DR s power source Alternately...

Page 12: ...d user devices typically associated with products from Clear Com can also be sup ported These circuits and devices typically utilize common on pin 1 power on pin 2 and audio on pin 3 When connected to...

Page 13: ...e output transmitter channels with the default names of From PL Ch1 and From PL Ch2 The Model 45DR has two Dante input receiver channels with default names of To PL Ch1 and To PL Ch2 Using Dante Contr...

Page 14: ...ion of this guide The Model 45DR will now begin normal operation The way in which the LINK ACT SYS SYNC and PoE LEDs all located on the back panel below the Ethernet con nector light will depend on ch...

Page 15: ...with an approximate level of 10 dBu is being sent to channel 1 of the party line intercom circuit Also note that this 10 dBu signal on the party line in tercom circuit will translate to a 20 dBFS dig...

Page 16: ...le termination condition This will result in a 100 ohm party line circuit impedance and an audio level drop of about 6 dB Removing the unwanted termination is the only valid means of cor recting the p...

Page 17: ...devices This current approximately 5 mA provides a circuit active signal to the Model 45DR s rmware indicating that normal operation is taking place This helps to prevent unwanted audio signals from...

Page 18: ...ng the auto null button The auto null process takes place on both channels at the same time Two LEDs provide a visual indication of the auto null process ashing when the auto null process for its resp...

Page 19: ...nput connector The header located on the Model 45DR s printed circuit board is Molex part number 22 23 2031 It mates with Molex housing number 22 01 3037 To make the interconnection sepa rate crimp te...

Page 20: ...rmware M45DR bin is contained within this zip le Two of the LED meters should be used to con rm that the correct applica tion rmware version has been success fully installed To install the applicatio...

Page 21: ...ash drive doesn t have the correct le M45DR bin in the root folder no harm will occur Upon power up the USB LED will ash on and off rapidly for a few seconds to indicate this condition and then norma...

Page 22: ...9 volts DC 240 mA maximum Impedance Local PL Power Not Enabled 10 k ohms Impedance Local PL Power Enabled 200 ohms Analog Audio Level 10 dBu nominal 3 dBu maximum PL interface pin 2 7 dBu PL interface...

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