Yeastar P550 Overview

Front panel

Table 1.
No. Indicator, Button or Interface Description
① NFC Tag Tap NFC-capable mobile phone's back against Yeastar logo to quickly configure network settings.
② System Indicator Indicate the system status.
  • Blinking: The system is working properly.
  • Static/Off: The system goes wrong.
③ Power Indicator Indicate the power status.
④ WAN Port

For connection to Wide Area Network (WAN).
⑤ LAN Port For connection to Local Area Network (LAN).
⑥ USB Slot Insert a USB flash drive to store voicemails, logs, or recording files.
⑦ 1-8 LED (RJ11 port status) Indicate the ports' status.
  • FXS:
    • Green: static: The analog phone or fax machine is idle.
    • Green: blinking: The analog phone or fax machine is busy.
  • GSM/3G/4G LTE:
    • Red: static: The GSM/3G/4G LTE trunk is idle.
    • Red: blinking slowly: No SIM card.
    • Red: blinking rapidly: The GSM/3G/4G LTE trunk is in use.
  • BRI:
    • Orange: static: The BRI line is connected or in use.
    • Orange: blinking: The BRI line is disconnected.
  • FXO:
    • Red: static: The PSTN line is idle.
    • Red: blinking slowly: No PSTN line is connected to the FXO port.
    • Red: blinking rapidly: The PSTN line is busy.
⑧ 1-8 port (RJ11 ports)
  • FXS port (green light): For the connection of analog phones or fax machines.
  • BRI port (orange light): For the connection of ISDN BRI lines.
  • FXO port (red light): For the connection of PSTN lines or FXS ports of traditional PBX.
⑨ Reset button Press the button and hold for 10 seconds to restore to factory defaults.

Rear panel

Table 2.
No. Button or Interface Description
① Antenna Socket Rotate the antenna into the Antenna Socket.
② Power Switch Press this button to switch on/off the device.
③ Power Inlet Connect the supplied power supply to the port.
④ Protective Earth Connect to the ground to reduce the risk of electrocution to the user or protect the PBX from bad effects of external noise in case of a lightning strike.