Technical Specification

Model: LF-7802

Network Interface: Standard RJ45 input

Transmission rate: 1000Mbps/100Mbps

Protocol: TCP/IP, UDP, IGMP( multicast), IETF SIP

Audio format: Mp3, WMA, WAV

Audio mode: 16 bit CD quality

Sampling rate: 8K~48KHz

AUX Input: 1 group

AUX Sensitivity: 350mV

MIC input: 1 group (Optional of mic rod or

postpositional headphone, 3.5mm interface input)

MIC sensitivity: 10mV

Line output: 1 group

Line output level/impedance: 1000mV/470Ω

MIC type: Heart centered electrets

Earphone Output Connector: 0.5mm interface

Earphone load: 32Ω

USB Maximum: support 4T USB device; load <0.1A

SD Maximum: support 128G / SDXC card

Power Consumption: 20W

Standby Power Consumption: <3W

Frequency Response: 80Hz~16KHz, -3dB/+1dB

THD: ≤1%

SNR: >65dB

Short-circuit Input: 0V/3.3V, Support dry contact


Short-circuit Output: Maximum 1A/30VDC dry

contact output

Working Voltage: ~190-240V 50-60Hz (power

adapter); DC24V/2A

Extended Interface: 1×RJ45 Special device


Working Temperature: 5℃~40℃

Working Humidity: 20%~80% Relative humidity,

without condensation

Size: 200×159×55mm

Weight: 1.05Kg


Professional desktop intercom microphone, mainly applied in main control room, duty room or leadership office to realize paging, intercom and monitoring function, etc.



* With desktop design, new appearance and 8″ capacitive touch screen, high-end and artistic.

* 4.3” TFT true color LCD, graphical UI display interface, capacitive touch screen control, easy to operate.

* Based on Luna cloud server, with high security and stability, supporting 7×24 hours continuously operation

* Support multiple prompting modes like Help, incoming call ring, voice reporting, flashing light, text, etc. Support one-key answering, one-key monitoring, hand-free call and information recording of missed calls.

* Built-in 2GByte SSD, supporting remote server management. The bandwidth-limited background download or idle-time automatic download function can reduce network loads. The media library can realize off-line automatic playing function.

* Integrate USB and Micro SD(TF) card interface, supporting maximum 4T memory USB devices and 128G/SDXC card, realizing audio file broadcast. The content stored in USB, TF card and media library can be played in the terminals within controllable range freely.

* Built-in 2W full frequency intercom speaker, with clear and loud sound; the projection microphone ensures the clear sound free from disturbance.

* Standard equipped network interface, supporting switching extension mode and redundant backup mode. The maximum full-rate connection amounts to 1000M

* Various network accesses, including DHCP automatically assigned access, ADSL smart dialing, fixed IP address access, etc。

* With 1 AUX audio input, 1 group MIC input,  supporting user customized priorities.

* 2 short-circuit output, 2 short-circuit input, support flexible custom function, realizing short-circuit collection, alarm trigger, as well as the linkage application of the third-party equipments like evacuation equipments, monitoring equipments, etc

* Support short-circuit trigger to restore to factory setting function, convenient to maintain system management at the greatest extent.

* Graphic volume adjusting interface can control the volume of online program, local MIC and local AUX.

* Real-time display of status information like program broadcasting, intercom, timing broadcasting, operation status, IP address, MAC address, etc. With one key to stop broadcasting program.

* Support log in switching between multiple users and user-defined function permissions.

* Support checking information about devices status and management equipment on the backstage WEB.

* Dual power supply, the 2V backup power port provides the best power supply for 7×24-hour operation of the terminal.

* The system supports remote hardware updating to the terminals, no need to go to the local terminal site, save a lot of maintenance work.