Foreign Exchange Station

Foreign eXchange Station ( FXS ) refers to a device in telecommunications that provides telephone services to terminal devices ( FXO devices) connected to a telephone system . As such, it generates the supply voltage for the end devices and the bell signal, among other things. Telephone jacks are FXS connectors. Devices connected to such a socket, such as telephones or modems , on the other hand, have FXO connections themselves.

See also

• Subscriber circuit
• Central office equipment

Web links

• English-language explanations at voip-info.org
• Ring relay control unit for foreign exchange station (accessed July 3, 2017)
• FOREIGN EXCHANGE SERVICE - BUSINESS (accessed July 3, 2017)