- Microphone Control
- Headset Control
- Coiled Lead
- Jabra GN1200 Smart Coiled Connection Lead
A simple low current microphone amplifier has been added on Position 6, 7, 8 that gives an approximate 12dB signal gain to the telephone system. The amplifier circuit draws power from the telephone system.[/vc_column_text][vc_column_text][/vc_column_text][/vc_column_inner][/vc_row_inner][vc_row_inner equal_height=”yes” content_placement=”top”][vc_column_inner width=”1/3″][vc_column_text]Volume Controls
Microphone Volume Control
Headset Volume Control[/vc_column_text][/vc_column_inner][vc_column_inner width=”1/3″][vc_column_text]DC Voltage
Maximum Voltage : 10v DC
Minimum Voltage : 1.6v DC
Nominal Voltage : 5v DC
Maximum Current : 2.5 mA
Minimum Current : 280 uA[/vc_column_text][/vc_column_inner][vc_column_inner width=”1/3″][vc_column_text]Characteristics
AC Output Voltage : 30mV
Preamp in
Insertion Gain : 11.5dB Nom Min 10.5dB : Max 12.5dB
Bias Voltage : 1.58v DC Nom , Min 1.53v DC : Max 1.76v DC
Preamp Out
Bias Voltage : 1.49v DC Nom, Min 1.38v DC : Max 1.71v DC
Microphone input
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