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foreign exchange subscriber (FXS)

Foreign Exchange Subscriber (FXS) or Foreign Exchange System (FXS) is a common interface in analog

telephone systems. Plain Old TelephonyService

(POTS) is the telephone service that local operating companies provide to their telephone subscribers. Thetelephone

service is providedas a separate service of the local telephone companies from their local exchange (OVSt) to the subscriber in his building over copper twisted pairs

. The Foreign Exchange Subscriber Interface is the telecommunications access unit over which the telephone service is connected to the subscriber equipment, the telephone, fax machine, or modem. It is an FXS interface for the subscriber over which the dial tone and voltages are carried.

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Englisch: foreign exchange subscriber - FXS
Updated at: 07.11.2020
#Words: 115
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Translations: DE