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Customer-premises equipment
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{{short description|Terminal and associated equipment located at a subscriber's premises}} {{Use dmy dates|date=May 2018}} In [[telecommunications]], a '''customer-premises equipment''' or '''customer-provided equipment''' ('''CPE''') is any [[terminal (telecommunication)|terminal]] and associated equipment located at a [[subscriber|subscriber's]] premises and connected with a [[common carrier|carrier's]] [[telecommunication circuit]] at the [[demarcation point]] ("demarc"). The demarc is a point established in a building or complex to separate customer equipment from the equipment located in either the distribution infrastructure or [[telephone exchange|central office]] of the [[communications service provider]]. CPE generally refers to devices such as telephones, [[Router (computing)|router]]s, [[network switch]]es, [[residential gateway]]s (RG), [[set-top box]]es, [[fixed mobile convergence]] products, [[home network]]ing adapters and Internet access [[gateway (telecommunications)|gateways]] that enable consumers to access providers' communication services and distribute them in a residence or enterprise with a [[local area network]] (LAN). A CPE can be an active equipment, as the ones mentioned above, or passive equipment such as [[analog telephone adapter]]s (ATA) or [[Digital subscriber line|xDSL-splitters]]. This includes [[key telephone system]]s and most [[private branch exchange]]s. Excluded from the CPE category are [[overvoltage]] protection equipment and [[pay telephone]]s. Other types of materials that are necessary for the delivery of the telecommunication service, but are not defined as equipment, such as manuals and cable packages, and cable adapters are instead referred to as CPE-peripherals. CPE can refer to devices purchased by the subscriber, or to those provided by the operator or service provider.
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