Wired Conference Chairman Microphone for Hand-in-Hand Voting System DDS590P1
Key Word ：
Digital Public Broadcasting System
◆ The conference unit supports two connection options: Category 6 network cables with RJ45 crystal connectors or dedicated 8-core conference cables.
◆ Equipped with a 42CM gooseneck microphone arm capable of 360-degree rotating sound pickup. Adopting high-directivity microphone sound pickup technology with an effective pickup distance of up to 80cm.
◆ The microphone arm features a green LED ring status indicator to show speaking and listening modes.
◆ Built-in microphone talk button and corresponding indicator light to control and display the on/off status of the microphone.
◆ A green light will automatically illuminate once the conference unit is powered on.
◆ Designed with anti-interference circuitry to resist interference from electronic devices such as mobile phones.
◆ Compatible with multiple chairman microphones. The chairman unit is fitted with a priority control button that can mute all delegate units at any time.
◆ Chairman units have no quantity restrictions and can be installed at any position within the loop.
◆ Powered by the system mainframe with an input voltage of DC 24V, falling within the safe voltage range.
◆ The unit is equipped with both an 8-core T-type port and an RJ45 network cable port.
◆ An external microphone with a 3.5MM interface can be connected, with switchable sound pickup cut-off function.
◆ External physical knob for adjusting microphone volume and pickup distance.
◆ Full metal base with internal wiring for connecting the conference microphone unit.
◆ Detachable microphone gooseneck arm.
# Unit Specifications
Operating Voltage: DC 24V (power supplied by mainframe)
Capsule Type: Cardioid Electret Condenser Microphone
Polar Pattern: Supercardioid
Sensitivity: -38 dBV/Pa
Frequency Response: 20Hz~20KHz
Input Impedance: 2 kΩ
Maximum Sound Pressure Level: 130 dB (THD<3%)
Equivalent Noise Level: 25 dBA
Signal-to-Noise Ratio: ＞80dB
Dynamic Range: >108 dB(1 KHz)
Total Harmonic Distortion: ＜0.05%
Maximum Power Consumption: 1W
Dimensions (L×W×H): 157*106*57MM
Weight: 850g
Colour: Black
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