OTE VS 2001 - Tab. A.4: Handset Characteristics

VS 2001
Technical Handbook
Accessories
Page 140 Marconi Proprietary information
P/N: 779-0373/02
Revision 02
The microphone and earphone caracteristics are reported on the following tables:
Tab. A.4: Handset characteristics
Microphone Characteristic Type/Value
Type Electet, whater resistance
Frequency range 200 to 8000 Hz
Power supply
1 ÷ 10V
Current comsumption
300 µA max
Sensitivity -62 dB ± 2 dB @ 1 KHz
Impedance
3 K Ω ± 30% @ 1KHz
Operating temperature range -30°C +60°C
Earphone Characteristic Type/Value
Frequency range 500 to 3000 Hz
Sensitivity
-91 dB S.P.L. ± 2dB @ 1KHz Re: 20µ Pa
Impedance
200 Ohm ± 40 Ohm
Operating temperature range -30 to +65 °C
The connector used is the same showed in Fig. A.2.