Relay (disambiguation)
Wikimedia disambiguation page
A relay is an electric switch operated by a signal in one circuit to control another circuit.
Relay may also refer to:
Electrical engineering
Protective relay, a device designed to trip a circuit breaker when a fault is detected.
Historical
Stage station, a place where exhausted horses being used for transport could be exchanged for fresh ones
Cursus publicus, a courier service in the Roman Empire
Relay league, a chain of message-forwarding stations
Computer networking
BITNET Relay, a 1980s online chat system
Mail relay, a server used for forwarding e-mail
Open mail relay, such a server that can be used by anyone
Other telecommunication
Relay (satellite)
Broadcast relay station, a transmitter which repeats or transponds the signal of another
Microwave radio relay
Relay channel, in information theory, a communications probability modeling system
Telecommunications Relay Service, a telephone accessibility service for the deaf
Repeater, an electronic device that receives and retransmits a signal
Automobiles
Citroën Relay, a marketing name for the Fiat Ducato van
Saturn Relay, a 2005-2007 minivan
Other uses
Relay (shop), a France-based chain of convenience stores
Relay (company), a peer-to-peer political texting platform
Relay (film), a 2024 thriller film
"Relay" (song), 1972, by The Who
Relay bid, in contract bridge
Relay race, completed in parts by several participants of a team
Relay neuron, in anatomy
Relay box, a piece of postal infrastructure.
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This entry incorporates text from “Relay (disambiguation)” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.