The functions of public address main unit

Remote control: remote control broadcast can be achieved by connected remote control box

Talkback: mutual talkback can be carried out with remote control box.

Alarm: It has interface to general alarm system, which can receive alarm signal from general alarm system.

Output: It has outputs of shout, cabin, deck and post; cabin and post has forced full volume output function.

Protection: It is protected from output short circuit and overload.

Entertainment: with MP3 player, can receive FM radio.

When shout speaker is working, other speakers will be closed forcefully.

Talkback function: mutual talkback between remote control boxes

Maximum six remote control boxes could be connected.