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1. BP 1 we Production Intercom Headset stations Operating Instructions Belt Packs 1 Plug a headset into the XLR type 4 pin socket on the back of the unit The headset wiring standard is shown in Fig 1 In Production Intercom systems the phase of the earphone is the reverse of that sometimes used This was done to reduce the effect that the headset connector and wiring has on the headset station bridging impedance and Sidetone See 8 adjustment stability Either standard of headset wiring will work with Production Inter com headset stations 2 Plug the standard microphone cable from your power supply or master station into the XLR 3 pin type socket on the back of the unit 3 Press the mic button and partly turn up the Listen level control on your unit and others on the same cir cuit as yourself 4 You should now be able to communicate with any other outstations 5 The thumb operated Listen level control regulates the loudness of your headset earphone s It has NO ef fect on how loudly others hear you 6 The microphone amplifier gain is factory adjusted to suit most types of headset microphones It contains a limiter compressor which compensates for differences in microphone output and voice levels Should your chosen headset have too little mic output please contact your dealer 7 The flash signal push button flashes a light in all outstations connected to your circuit It is used to attract
2. Connector Wiring Dual Muff Headset Single Muff Headset Live 3 Return Return Shield 1 More than 100 Chms ear Less than 100 Ohms ear Belt Pack connections Station Connections Station Connections Male Female Gea Ojas HO Ops Communications Communications
3. at tention in the event that a user has removed his her headset 8 The screwdriver preset controls the level of your own voice in your headset This adjustment is called Sidetone This is set at the factory at a level suitable to the majority of the users This can be altered for per sonal preference or adjusted for deep cancellation allowing the headset to be removed and used to monitor ee ee Ga i Bin 2 d l 9 Aside from a reduction in Sidetone stability incurred when a Clear Com station is used in a Production In tercom communications system the two systems are compatible Specifications Headset Microphone Impedance 200 Q preferred 30 Q to 1 K Q acceptable Headset Earphone Impedance 150 600 Q preferred 8 Q 4 K Q acceptable Voltage 24V DC nominal 15 30V DC acceptable Current consumption 10 mA with speech 30 mA with signal lamp activated Lamp type 4 segment 20mA LED Line bridging impedance 200Q unbalanced Sidetone cancellation OdB to 55dB Production Intercom Inc P O Box 3247 Barrington IL 60011 3247 Voice 847 381 5350 Fax 847 381 4360 Sales amp Technical Assistance US amp Can 800 562 5872 e mail support beltpack com Web beltpack com Printed in U S A Rev 02 01 Controls Talk Push on push off self indicating switch Listen level Thumbwheel operated potentiometer Signal Non latching push button switch Sidetone Screwdriver adjust recessed potentiometer Headset
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