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DSPPA D7221 Desktop Digital Chairman Unit



  • Power supply through PoE+48V network cable, support cascaded connection;
  • With 5 inch TFT screen to bring the brand-new experience;
  • DSPPA D7221 Digital Chairman Unit support IC card check-in (induction distance < 10mm), key check-in, and other modes.
  • DSPPA D7221 Chairman Unit can be configured into chairman unit, VIP unit, delegate unit, translation unit, operator unit, and other management authority.

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DSPPA D7221 Desktop Digital Chairman Unit Specs:

Model D7221/D7222
Structure type Desktop
Gain limited effective frequency range (±3dB) A microphone in to B microphone out 80Hz-7kHz
Host line in to the unit 20Hz-8kHz
Microphone to host line output 80Hz-9kHz
Speaker power 1.5W
Static power <1W
Maximum power consumption 2W
Signal to noise ratio >80dB
Crosstalk attenuation >80dB
Harmonic distortion <0.5%
Headphone output 9dBu,8-32Ω,3.5mm
Working power Host power DC24V
Unit interface 8-pin DIN dedicated interface
Microphone Electret cardioid capacitive Electret cardioid capacitive
Sensitivity -45dBV/pa
input resistance 2kΩ
Equivalent noise 20dB(SPL)
Maximum sound pressure level 125dB(THD<3%)
Package dimensions 560×215×165mm
Machine size 218×120×50mm
Gross weight 2.5kg
net weight 1kg

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