It adopts self-developed data transmission technology to realize high-quality audio collection and transmission. It works with speech transcription APP to realize role separation function and supports RS232 to switch and identify each channel. It is suitable for multi-channel audio collection.


  • Embedded computing technology and DSP audio processing technology, high-speed industrial chips, the start-up time is less than 1s.
  • Based on the 3-layer network transmission technology, compatible with standard network protocols such as DHCP, TCP, UDP, ICMP, IGMP, ARP; realize the network transmission of 16-bit CD-quality audio signals.
  • Compatible with any network structure such as routers, switches, bridge gateways, Modem, Internet, multicast, unicast, etc.
  • With 32 input interfaces, support 32-channel audio balanced input collection.
  • Support the integration with ITC digital conference system, and support 4096 role separation in the mixing mode.
  • Support independent adjustment of volume value configuration for each channel.
  • Support two encoding transmission modes: FIFO mode/mixing mode.

Product Detail


Network InterfaceStandard RJ45 network port
Serial portRS232 serial port (db9 female interface)
Audio portPhoenix terminal
Number of audio channels32 channels
Transmission rate100Mbps
ProtocolCompatible with standard network protocols such as DHCP, TCP, UDP, ICMP, IGMP, ARP, etc.
Sampling rate16kHz
Input sensitivity350mVrms (balanced input)
Frequency response20Hz~20kHz +1/-3dB
SNR≥75dB (A)
Channel isolation≥70dB
Operating temperature-10℃~+55℃
Operating environment humidity20%~80% relative humidity, no condensation
Power consumption≤25W
Power supply100-240VAC, 50-60Hz

Contact us

  • itc Headquater

    Building NO. A13-1, Yiku Industrial Park, The Hills, Dongyi Road, Panyu District, Guangzhou, China 511492

  • itc Factory

    NO.19 Chuangyuan Road Zhongcun Town, Panyu District, Guangzhou, China

  • Email itc

  • Call itc

    +86-020-3937 8749