1) Main features: high-fidelity pickup, digital noise reduction processing, no noise, no whistling;
2) pointing characteristics: omnidirectional;
3) listening area: the effective listening range should be not less than 50 square meters or more, and with adjustment;
4) sensitivity: -35 ± 3dB;
5) frequency response: 20Hz ~ 16kHz;
6) signal-to-noise ratio: ≥ 70dB;
7) dynamic range: ≥ 100dB (1KHz at Max dB SPL);
8) Output impedance: ≥ 600 Ohm unbalanced
9) output signal amplitude: 2Vrms(@1KHz)/ 5.6Vpp(@1KHz);
10) microphone: using high-fidelity condenser microphone
11) Remote management: the system should have remote management, remote configuration of the relevant parameters, easy maintenance, while supporting remote online upgrade;
12) acoustic configuration: support through the acoustic code to achieve the device name, network parameters, audio parameters configuration;
13) installation structure: card holder separation ceiling-mounted, can be quickly maintained disassembly
14) electromagnetic compatibility: with electrostatic discharge anti-interference and RF electromagnetic field radiation anti-interference function
15) protection circuit: support for lightning protection / power supply polarity reversal protection
16) power supply: support DC11V-DC30V, support POE power supply;
17) network interface: standard RJ45 interface, where there is an Ethernet port can be accessed, support cross-section and cross-route;
18) Operating temperature / humidity: 0 ℃ ~ 50 ℃, ≤ 90% RH (no condensation).
1) Main features: high-fidelity pickup, digital noise reduction processing, no noise, no whistling;
2) pointing characteristics: omnidirectional;
3) listening area: the effective listening range should be not less than 50 square meters or more, and with adjustment;
4) sensitivity: -35 ± 3dB;
5) frequency response: 20Hz ~ 16kHz;
6) signal-to-noise ratio: ≥ 70dB;
7) dynamic range: ≥ 100dB (1KHz at Max dB SPL);
8) Output impedance: ≥ 600 Ohm unbalanced
9) output signal amplitude: 2Vrms(@1KHz)/ 5.6Vpp(@1KHz);
10) microphone: using high-fidelity condenser microphone
11) Remote management: the system should have remote management, remote configuration of the relevant parameters, easy maintenance, while supporting remote online upgrade;
12) acoustic configuration: support through the acoustic code to achieve the device name, network parameters, audio parameters configuration;
13) installation structure: card holder separation ceiling-mounted, can be quickly maintained disassembly
14) electromagnetic compatibility: with electrostatic discharge anti-interference and RF electromagnetic field radiation anti-interference function
15) protection circuit: support for lightning protection / power supply polarity reversal protection
16) power supply: support DC11V-DC30V, support POE power supply;
17) network interface: standard RJ45 interface, where there is an Ethernet port can be accessed, support cross-section and cross-route;
18) Operating temperature / humidity: 0 ℃ ~ 50 ℃, ≤ 90% RH (no condensation).
