
1Line in port: audio signal input, used to connect external audio input.
2Speaker port: according to the device input voltage adaptive output maximum power.
4Ωspkaker, POE/10W, 12V/10W, 18V/20W, 24V/30W.
The greater the horn impedance, the smaller the output power.
Suggested wire diameter: 18AWG or larger diameter.
3Line out port: audio signal output, for external headset or active speakers.
4Microphone port: the proposed use of electret condenser microphone, sensitivity: -38dB, bias voltage 2.2V.
Microphone signal cable it is recommended to use a shielded cable and connect the shield cable to the
grounding screw, improve anti-interference.
5Volume decrease key: adjust ring volume / call volume / broadcast volume. Long press the volume down
key to broadcast the IP address by voice.
6Volume increase key: adjust ring volume / call volume / broadcast volume.
7Network / Registration LED: indicates network status, call status, registration status.
Fast flashing: network anomaly or SIP account exception.
Slow flashing: during a call.
Always bright: successful registration.
8Ethernet port: WAN port, standard RJ45 port, 10 / 100M adaptive, support PoE input. It is recommended to
use five or super five network cable.
9Power input port: 12V ~ 24V 2A input, according to the input voltage to determine the maximum output
power amplifier.
10 USB port: connect the USB peripherals, such as USB flash disk, USB adapter, etc。
11 Function button port: connection the function button, you can make an emergency call through this button.
12 Reset key: press and hold for 3S, and the indicator light will turn off, and the device will restart and restore
the factory settings.
13 TF card port: connection the TF card, used to store local audio files or records.
Quick installation Guide
PA3