 | This article includes alist of references,related reading, orexternal links,but its sources remain unclear because it lacksinline citations. Please helpimprove this article byintroducing more precise citations.(February 2021) (Learn how and when to remove this message) |
Intelecommunications, aninterface standard is astandard that describes one or more functional characteristics (such ascode conversion,line assignments, orprotocol compliance) or physical characteristics (such as electrical, mechanical, or optical characteristics) necessary to allow the exchange ofinformation between two or more (usually different) systems or pieces of equipment.Communications protocols are an example.
Aninterface standard may include operational characteristics and acceptable levels of performance.
In the military community, interface standards permitcommand and control functions to be performed using communication andcomputer systems.
There are many interface standards between analog telephonecentral office equipment andcustomer-premises equipment. Singlevoice paths generally include analog audio connections, either atwo-wire circuit orfour-wire circuit plus signaling paths to indicatecall progress and status information, such as ringing,answer supervision, etc. Some of the known interface types are:
This article incorporatespublic domain material fromFederal Standard 1037C.General Services Administration. Archived fromthe original on 2022-01-22. | This article related totelecommunications is astub. You can help Wikipedia byexpanding it. |