* Built-in 240W high-efficiency digital power amplifier, integrated 2 power A + B independent dual-speaker loop zone output, each zone has independent LED indicator, independent output control buttons and volume adjustment.

*4 audio balanced input interfaces for playing any audio source in the zones

*Local emergency PTT microphone input and emergency voice can be configured by PC software to be played in specific zone.

*Automatically detect the working status of each zone loop (fault, normal)

*The 4-channel trigger input/output port can trigger the emergency voice preset by the PC software to the specified zone or the corresponding external power source to the corresponding event warning.

*Support third-party emergency audio input (user-defined emergency audio source)

*Integrated independent EVAC/ALERT voice information player.

*The remote paging microphone / fireman microphone online interface can connect with remote paging microphone and fireman

microphone, each paging station connection uses standard RJ-45 network port and standard CAT-5 network cable, voice transmission uses balanced transmission mode for long-distance transmission.

*Controller online interface can be connected to the slave unit, it uses standard RJ-45 network port and standard CAT-5 network cable.

*communication interface, supports visual interface operation based on Window platform, and the system status can be automatically synchronized.

*Support DC24V battery backup power supply.

*With power amplifier monitoring function.

*Support PTT recording function, no external equipment required.

*System fault, dry contact output for emergency status, dry contact input for emergency status reset

*The zone output has three-wire and four-wire over-ridding adjustment functions.

*With IP address reset function and impedance calibration function.

*The master-slave unit is integrated, and the device can be used as a controller or a slave unit by setting code address, and the maximum of 19 slaves can be simultaneously online.

*The system can extend the number of the zones by slave units, it support 40 zones maximum.