M42A2 mask microphone ...The M42A2 chemical/biological mask uses a dynamic microphone microphone, device for converting sound into electrical energy, used in radio broadcasting, recording, and sound amplifying systems. Its basic component is a diaphragm that responds to the pressure or particle velocity of sound waves. , NSN NSN National Stock Number NSN Nokia Siemens Networks NSN National Storytelling Network NSN NATO Stock Number NSN New Substances Notification (CEPA) NSN National Student Number (NZ) NSN Never Say Never 5965-01-414-2257. When wearing a CVC See CSC. helmet and plugging into the AN/VIS-3 communications system In telecommunication, a communications system is a collection of individual communications networks, transmission systems, relay stations, tributary stations, and data terminal equipment (DTE) usually capable of interconnection and interoperation to form an integrated whole. , one end of the microphone cord plugs into the front voicemitter socket of your mask. But some folks aren't sure where the other end goes. Here's where the confusion comes in. The microphone cord plug, JJ-055, has two sockets. But the receptacle in the CVC helmet has three pins! Here's the scoop: Use that receptacle to plug in the microphone cord, but only use the first two pins. The third pin provides DC power to electrical microphones, which your mask mike isn't. Your microphone is dynamic, which means it requires no electrical power. So--plug it in and don't worry about the third pin! |
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