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From circuitprotection.com
Asymmetric Digital Subscriber Lines (ADSL) employ an asymmetrical digital line technology to provide a transmission rate up to 6.144Mbps from the Central Office Terminal (COT) to the Remote Terminal (RT) and a 640kbps transmission rate from the RT to the COT at distances up to 12,000 feet. See Figure 1 for a typical ADSL system architecture. Splitters at the central office end of the line separate voice-band traffic from data traffic and route them to appropriate switching equipment. At the customer premise, both splitter and splitterless configurations exist. Since ADSL equipment connects to the copper infrastructure of the Public Switched Telephone Network (PSTN), it is subject to overcurrent and overvoltage hazards from AC power cross, power induction, and lightning surges. PolySwitch resettable devices and SiBar thyristors provide coordinated resettable protection against these faults, thereby protecting equipment from damage and minimizing field service and warranty costs. Products & Services
Line drivers extend the transmission distance between terminals or computers connected along private lines or networks.
xDSL chips provide digital subscriber line (DSL) connectivity in a system-on-chip platform. The term xDSL refers collectively to all types of digital subscriber lines.
Internet service providers (ISPs) furnish data communications like Ethernet and ATM to businesses.
Distributed control systems (DCS) use decentralized elements or subsystems to control distributed processes or complete manufacturing systems.
Supervisory control and data acquisition (SCADA) systems are large-scale, industrial control and measurement systems that consist of a central host, one or more remote units, a communications network, and specialized software.
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