There are two main types of telephone lines in use today: FXO and FXS. But what is the difference between them? In this blog post, we will take a closer look at each type of line and explain how they work. We will also discuss some of the pros and cons of each type of line. By understanding the difference between FXO and FXS, you can make an informed decision about which type of line is right for your business.
What is FXO?
FXO is a type of device that connects a telephone line to an FXS port. FXS ports are typically found on PBX systems and allow for the connection of multiple telephone lines. FXO devices convert the incoming analog signal from the telephone line into a digital signal that can be processed by the PBX system. In most cases, FXO devices are used to connect a PBX system to the PSTN (Public Switched Telephone Network). However, they can also be used to connect a PBX system to VoIP (Voice over IP) networks. FXO devices typically have RJ-11 connectors, which are compatible with standard telephone jacks.
What is FXS?
FXS is a VoIP telephone adapter that allows FXO-based equipment to connect to a VoIP network. FXS adapters are commonly used in telephone systems that have both FXO and FXS ports. FXS adapters typically have two FXS ports, which allow them to connect to two separate VoIP networks. FXS adapters are also used in fax machines and other devices that use FXO ports. FXS adapters typically have a single FXO port and an FXS port. FXS adapters are not compatible with VoIP systems that do not have FXO ports.
Difference between FXO and FXS
FXO and FXS are two different types of trunk interfaces. FXO is a foreign exchange office, while FXS is a foreign exchange station. FXO ports provide the connection between the local end office and the subscriber line, while FXS ports provide the connection between the subscriber line and the telephone. FXO ports typically connect to the public switched telephone network, while FXS ports connect to private branch exchanges or PBXs. FXO and FXS are distinguished by the different voltages that they use to connect to their respective networks. FXO uses positive voltages and negative voltages to connect to the public switched telephone network, while FXS uses only negative voltages to connect to PBXs.
In conclusion, FXO and FXS are both important in the transmission of voice signals. However, FXO is used to transmit outgoing signals while FXS is used to receive incoming signals. Understanding the difference between these two types of connectors can help you select the right one for your application.