PA SYSTEM

LF-7770

Technical Specification

Model: LF-7770

Network Interface: Standard RJ45

Support Protocol: TCP / IP, UDP, IGMP (multicast)

Audio Format: MP3

Sampling Rate: 8K~48KHz

Transmission Rate: 100Mbps

Audio Mode: ADPCM  PCM

Input Frequency: 80Hz~14KHz   +1/-3dB

THD: ≤1%

SNR: >65dB

Operating Temperature: 5℃~40℃

 Operating Humidity: 20%~80% relative humidity, non-condensing

Power Consumption: ≤10W

Power Input: DC12V/1A

Dimension: 93 x 66 x 43mm

Weight: 0.5Kg

Description

Specially design for external analog signal collection in IP network system, encoding analog signal to digital signal to transmit and broadcast to designated terminals.

 

Features

*  Full aluminum alloy shell and durable structure, small and delicated appearance,.

*  Adopt embedded computer and DSP signal processing technology, built-in high-speed industrial processing chip , to ensure the start-up time is less than 1 second.

*  Built-in 1 channel audio encoding module of network hardware, support (multicast)protocol of TCP/IP, UDP, IGMP, to realize network signal transmission with 16 bit CD sound quality. 

*  Built in 2 groups of RCA input terminals, with input volume adjustment, flexible matching with various devices with different sensitivity.

*  Support timing or temporary signal collection and broadcast task; the task priority levels can be set through the server.

*  Support 3 collection and broadcasting modes:”ordinary collection and broadcast “, “medium collection and broadcast ” and “Hi-fi collection and broadcast “. ” ordinary collection and broadcast ” can access the effect of ultra-low delay network audio acquisition, “medium collection and broadcast” can access the effect of low latency and ordinary sound quality of  network audio acquisition, “Hi-fi collection and broadcast” can access the effect of ultra- low distortion of the network audio acquisition.

*  Compatible with all network structure, such as router, switch, Bridge, Modem, Internet, 2G, 3G, 4G, multicast, unicast etc.

*  It supports remote hardware upgrade of the terminal, no need go to upgrade at the local site, to reduce maintenance burdens and make more simple operation.