High-grade aluminum 2U black brushed panel, cabinet installation, beautiful and generous The equipment is designed with embedded computer technology and DSP audio processing technology High-speed industrial-grade chips are used, and the startup time is less than 1s Equipped with 100V, 70V constant voltage output and 4~16Ω constant resistance output Five-way signal input (three-way microphone, two-way line. 1-way audio signal auxiliary output interface, which can be expanded to an external power amplifier Each channel volume is independently adjustable, with treble and bass adjustment MIC1 automatic mute has an adjustment switch, and the adjustable range is:0 to -30dB It has a 5-unit LED level indicator for easy observation of the signal output status MIC1 automatic mute has an adjustment switch, and the adjustable range is:0 to -30dB Three-wire audio control forced output interface, unlimited number of audio controls Built-in DC24V power output, used to force the 4-wire audio controller 1 group of short-circuit signal input, which can trigger the alarm of this machine through software setting 1 group of short-circuit signal trigger output, used to drive other linkage devices Built-in 1-channel network hardware audio decoding module, supporting TCP/IP, UDP, IGMP (multicast. protocols Realize network transmission of 16-bit stereo CD quality audio signals It has the function of actively taking over tasks when the network and server are disconnected, and can realize automatic playback when the terminal is disconnected It has a built-in 4G large-capacity memory, and the program is transmitted to the SD card for storage through the network Built-in high-precision timing digital clock chip, the power-off timing is not less than 3 years, and it has network synchronization function The power of the power amplifier module is automatically managed, and the power of the power amplifier can also be manually forced to turn on to meet the use of local sound sources Support 1000-level custom audio priority silent control Support PSTN telephone broadcasting, support SMS voice broadcasting Support mobile WIFI on-demand, support wireless remote control on-demand Support server unified authorization operation management function, unified configuration management users and passwords Support DHCP, compatible with any network structure such as routers, switches, bridge gateways, Modems, Internet, 2G, 3G, 4G, multicast, unicast, etc. Support intelligent voice prompt function when registering new terminal configuration (if the device is connected. Support 15KVESD protection, built-in network isolation lightning protection circuit 1-way PC download IP address serial port, used to modify the IP address of the network decoding module Digital network product, easy to expand, not restricted by geographical location, no need to add computer room management equipment Adopt the design concept of common network free line construction, easy to install The cooling fan adopts intelligent temperature control to start It has perfect output short circuit protection and over-temperature protection functions