D6221 Conference Speech & Vote Chairman Unit

Name: D6221 Conference Speech & Vote Chairman Unit
Brand: Guangzhou DSPPA Audio Co., Ltd.

Features

● A conference unit integrating functions such as speeches and votes.
● The conference has 2m 8 core high-density DIN cable with an aviation plug.
● Electret, cross-shaped, directive, condenser type microphone, with double-color ring type indicating lights (red/green). The indicating light is red when speech is made and in green when an application has been sent.
● The standard knob-type gooseneck microphone rod is available in 315mm and 415mm, and black and silver. Other options: square microphone rod, oval microphone rod, square microphone rod with analog backup, square microphone rod with dual mics and square microphone rod with analog backup and dual mics. For details, see “Chapter V Accessories” below.
● The microphone rod is removable, so it is easy to maintain and store.
● Magnet Hifi speaker, which is muted when the microphone is one, and it is not easy to produce howl.
● 3.5mm stereo headphone jack for connection of headphones and the headphone volume is adjustable.
● Very strong anti-jamming capability from mobile phones.
● Microphone on/off switch, 5 vote buttons and chairman units has additional chairman priority button.
● Conference check-in function.
● Each conference unit has a unique ID code.
● High brightness LCD screen, when in working it can display in real time:
● The ID, number of delegates applying for speech, vote results, number of check-in participants and other operation messages;
● User can switch between simplified Chinese and English languages in message displaying.
● With cameras, after properly configured on the host or PC control software, it supports automatic camera tracking function.
● When used with a host, the conference can realize self-checking function. The check items include: buttons, microphone, LED indicating lights, LCD screen and built-in speaker.
● The unit is a passive equipment and is powered by the system controller, with input voltage being 24V.
● When the microphone is on, the speaker in the conference unit will be closed automatically to avoid sound echo.
● The conference unit has prompt tones when it is powered on, and the prompt tone may be deactivated.
● After settings on the host, the chairman unit has the priority (to turn off the sound or close the delegate unit), platform mode (the chairman unit is always on).
● With the chairman unit, the conference chairman can approve applications of delegate units for speeches.
● Chairman units are free from restrictions of speaking persons and may be activated freely.
● Chairman units has the priority to maintain order at the conference site.

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Introduction
Specification
Connection

The D6221/D6222 Desktop Speaking & Voting Chairman/Delegate Units integrate speech, voting, and check-in functions with a high-sensitivity cardioid microphone and a bright LCD screen for clear and reliable conference operation. The built-in speaker automatically mutes when the microphone is active to prevent feedback, and dual headphone jacks allow adjustable monitoring. Connected via a dedicated 8-core DIN interface, the units support automatic camera tracking and multiple connection topologies, making them ideal for modern digital conference systems. The chairman unit provides priority and podium functions to efficiently manage the flow of meetings.

Model		D6221 D6222
Structure Type		Desktop
Effective Frequency Range for Gain Limiting (±3dB)	Unit A Input to Unit B Monitoring	80Hz-7kHz
	Host Line Input to Unit Monitoring	20Hz-8kHz
	Unit to Host Line Output	80Hz-9kHz
Speaker Power		1.5W
Static Power Consumption		<1W
Maximum Power Consumption		2W
Signal-to-Noise Ratio		>80dB
Crosstalk Attenuation		>80dB
Harmonic Distortion		<0.5%
Headphone Output		9dBu, 8-32Ω, 3.5mm
Operating Power		Powered by host, DC24V
Unit Interface		8-Core DIN dedicated connector
Microphone	Microphone Type	Cardioid electret condenser
	Input Sensitivity	-45±2dBV/Pa
	Frequency Response	50Hz-16kHz
	Maximum SPL	115dB
Product Dimensions (W×D×H)		218×120×50mm
Package Dimensions		420×260×125mm
Net Weight		1kg
Gross Weight		2kg

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