3M - A125
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3M Noise Reduction Module Model A125 Installation Instructions Description The 3M A125 Noise Reduction board 3M part number 78 9236 6453 2 improves the inbound intelligibility of an intercom system by reducing environmental background noise from vehicles airplanes noisy intersections wind etc System Requirements The 3M A125 Noise Reduction Module requires a 3M model C921BA or C922AA Base Station Installing the Noise Reduction board into the 3M Base Station 1 Remove the right hand and left hand top covers from the 3M base station Be careful that the main circuit board does not fall out of the plastic base 2 See Important installation notice on next page before performing this step Plug the A125 ribbon cable onto connector J8 located at the t ...Click here to download the manual
Contents
3M Noise Reduction Module Model A125 Installation Instructions Description The 3M A125 Noise Reduction board 3M part number 78 9236 6453 2 improves the inbound intelligibility of an intercom system by reducing environmental background noise from vehicles airplanes noisy intersections wind etc System Requirements The 3M A125 Noise Reduction Module requires a 3M model C921BA or C922AA Base Station Installing the Noise Reduction board into the 3M Base Station 1 Remove the right hand and left hand top covers from the 3M base station Be careful that the main circuit board does not fall out of the plastic base 2 See Important installation notice on next page before performing this step Plug the A125 ribbon cable onto connector J8 located at the t ...