D7221 Desktop Digital Chairman Unit with Voting Function & Touch Screen

Name: D7221 Desktop Digital Chairman Unit with Voting Function & Touch Screen
Brand: Guangzhou DSPPA Audio Co., Ltd.

Features

● Power supply through PoE+48V network cable, support cascaded connection;
● With 5 inch TFT screen to bring the brand-new experience;
● Support IC card check-in (induction distance < 10mm) , key check-in and other modes.
● Can be configured into chairman unit, VIP unit, delegate unit,
● translation unit, operator unit and other management authority.
● With conference discussion, voting and other functions, can view and compile conference information;
● 1 channel 3.5mm audio output interface, can manually adjust the volume, and has 7 balanced adjustments;
● Support camera tracking function. With built-in speaker: 4W/2Ω

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Introduction
Specification

The conference unit integrates functions such as speaking, voting, sign-in, self-test, tea application service and two-way intercom. Adopt cardioid directional condenser microphone, built-in internal magnetic speaker, headphone jack, with microphone on indicator ring and touch button light switch indication. It has the function of voice control switch in VOICE mode. Built-in digital high-speed processor and high-fidelity audio circuit. The unit with LCD capacitive touch screen can be operated by touch. The display can show the identity and working status of the chairman unit / VIP unit / common unit. With a variety of working modes, with echo cancellation, howling suppression, background squelch and other functions.
D7221 Desktop Digital Chairman Unit with Voting Function & Touch Screen

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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