Hi there, Community friends!This time, I
will share with you the FXS/FXO ports. Hope you like!
Foreign exchange station (FXS) and foreign exchange office (FXO) ports are used for analog telephone lines. They are usually used in pairs, similar to the relationship between a plug and a socket. An FXO port receives the dial tone voltage from an FXS port.
The following describes the positions of FXS and FXO ports, using the connection between a telephone and a telephone company as an example.
If a private branch exchange (PBX) is not used, the telephone's FXO port is directly connected to the FXS port provided by the telephone company.
If a PBX is used, the FXO port provided by the telephone company is connected to the PBX's FXS port, and the telephone's FXO port is connected to the PBX's FXS port.
That's all, I welcome everyone to leave a message and exchange in the comment area!
