ÿþ<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <html> <head> <link rel="stylesheet" type="text/css" href="../../Nor150_style_sheet.css" /> <title>Microphone input socket preamplifier</title> </head> <body> <h1>Specifications</h1> <p> Microphone / preamplifier input socket<br /> Pin function<br /> 1: Microphone system check<br /> 2: GND  signal reference<br /> 3: Polarisation voltage<br /> 4: Signal input<br /> 5: +15 V preamplifier supply voltage<br /> 6: 7: -15 V, preamp. supply voltage </p> <p> <img src="../../Help/Image/LemoSocket.bmp" width="232" height="145" alt="Microphone input socket" /> </p> </body> </html>