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Guangzhou Sizheng Electronics Co., Ltd
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Guangzhou Sizheng Electronics Co., Ltd

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    3327257802@qq.com

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    2nd Floor, Building B, Youbao Industrial Park, No. 17 Xiangshan Road, Science City, Huangpu Development Zone, Guangzhou City

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NP-VA150D Full Duplex Voice Intercom

NegotiableUpdate on 01/09
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Overview
NP-VA150D is a four in one integrated device that combines public broadcasting, audio monitoring, full duplex intercom, alarm and other functions
Product Details

Introduction to NP-VA150D Full Duplex Voice Intercom Terminal Equipment
1: NP-VA150D is a four in one integrated device that combines public broadcasting, audio monitoring, full duplex intercom, alarm, and other functions.
2: The built-in speaker, microphone, echo cancellation module, and alarm button enable real-time full duplex voice intercom.
3: Built in KaBoni advanced digital noise cancelling microphone, capable of voice intercom within 3 meters without echo whistling.
4: The use of SIZHENG's independently developed digital AEC audio technology can comprehensively eliminate echoes.
5: Adopting intelligent digital FPGA dual core wide dynamic noise reduction algorithm, it can clearly pick up sound in complex environments.
6: Embedded 3W full frequency high-quality speaker, whether in intercom or broadcasting, the sound is loud and clear.
7: Built in anti distortion and anti distortion technology provides maximum protection for the speaker's output, ensuring the fidelity of sound quality.
8: Can match devices with audio input/output interfaces such as DVR, IPC, DVS, NVR, etc., and support intercom function.
9: The public broadcasting system, audio monitoring system, IP intercom system, etc. that need to be designed and implemented separately in the weak current system integration can be centralized into a unified audio and video monitoring intercom system.
10: Equipped with RS485 bus control and transmission protocol of network audio and video servers, it can achieve comprehensive information exchange with the control center, including initiating calls, coordinating addresses, etc.
11: The digital pickup distance is far, the long-distance intercom is clear and noise free, the broadcasting distance is far, and the resistance is strong.
12: The expansion has a recording output port, which can be used in conjunction with voice cards, hard disk recorders, computers, etc. to achieve synchronous recording.
13: Adopting high-end aluminum alloy brushed panel, including aluminum alloy installation base, the appearance is simple and elegant.
14: The product adopts support rods and hexagonal fixing screws inside, which have anti disassembly and explosion-proof functions.
15: Integrated call alarm button on the panel, supporting alarm output and one click intelligent communication.
16: Multiple assembly structures are available, which can be embedded or hung on the wall, and can be installed openly or in a simple and convenient manner.
17: Suitable for working in ambient temperatures ranging from -20 ℃ to 75 ℃, ensuring high-quality voice intercom performance.
18: According to the EU Environmental ROHS Directive 2002/95/EC, construction standards have been established.
19: Through the EU CE standards and the construction specifications for the synchronized audio and video recording system of the Supreme People's Procuratorate.
20: Tested according to relevant standards of the Federal Communications Commission (FCC) and corresponding system construction specifications.
NP-VA150D Full Duplex Voice Intercom Terminal Equipment Parameters

project Performance indicators of microphone
Sound pickup area >3 meters
Audio transmission distance 3000 meters
Noise cancellation frequency response range 10Hz ~10kHz
sensitivity MV 28 dB (10.0 MV e 1 V and 1 more)
signal-to-noise ratio 80dB(1米m40dB 音源 SPL)40dB(10米m40dB 音源 SPL) 1KHz at 1Pa
Speaker power 3W
pointing feature Omnidirectionality
Noise suppression parameters >15dB
Echo suppression parameter 180ms for echo cancellation tail sound
dynamic range 104dB(1KHz at Max dB SPL)
Greatly withstand sound pressure 120dB SPL(1KHz,THD 1%)
Zui Loud Output 2.5Vpp/80dB sound pressure (A-weighted)
Output signal amplitude 2.5Vpp/100dB sound pressure (A-weighted)
output impedance 600-1000 ohms unbalanced
microphone KaBoni Advanced Digital Denoising Microphone
signal processing circuit Digital AEC echo cancellation technology FPGA dual core wide dynamic noise cancellation algorithm suppresses echo from ultra long distance sound pickup
protection circuit Lightning protection, power polarity reversal protection, ESD protection
connection method 8-way port (alarm input, audio input, audio output, power input)
Transmission cable RVVP shielded cable
power supply voltage DC voltage stabilization DC12V
operating current 500mA
Electromagnetic Compatibility Compliant with GB 9254-2008
Reliability indicator MTNF ≥ 80000 hours
ambient temperature -20℃ ~ 75℃
color silvery
Shell material aluminum alloy
Overall dimensions 145mm×85mm×34mm
weight 450 grams
Place of Origin China, Guangzhou
Supply situation Spot goods can provide free samples for testing
meet the standard Construction specifications for synchronous audio and video recording systems in accordance with the EU Environmental Protection ROHS Directive 2002/95/EC
Passed the EU CE standards and the construction specifications for the synchronized audio and video recording system of the Supreme People's Procuratorate
Tested according to relevant standards of the Federal Communications Commission (FCC) and corresponding system construction specifications