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Longitudinal redundancy check information


In telecommunication, a longitudinal redundancy check (LRC), or horizontal redundancy check, is a form of redundancy check that is applied independently to each of a parallel group of bit streams. The data must be divided into transmission blocks, to which the additional check data is added.

The term usually applies to a single parity bit per bit stream, calculated independently of all the other bit streams (BIP-8).[1][2]

This "extra" LRC word at the end of a block of data is very similar to checksum and cyclic redundancy check (CRC).

  1. ^ RFC 935: "Reliable link layer protocols".
  2. ^ "Errors, Error Detection, and Error Control: Data Communications and ComputerNetworks: A Business User's Approach".

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Longitudinal redundancy check

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In telecommunication, a longitudinal redundancy check (LRC), or horizontal redundancy check, is a form of redundancy check that is applied independently...

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Transverse redundancy check

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In telecommunications, a transverse redundancy check (TRC) or vertical redundancy check is a redundancy check for synchronized parallel bits applied once...

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Longitudinal

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formed by waves confined in the cavity Longitudinal redundancy check, in telecommunication, a form of redundancy check that is applied independently to each...

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Error detection and correction

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are called transverse redundancy checks, while those added at the end of a stream of words are called longitudinal redundancy checks. For example, if each...

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Parity bit

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transverse redundancy check. This can be combined with parity computed over multiple bits sent on a single signal, a longitudinal redundancy check. In a parallel...

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Check digit

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A check digit is a form of redundancy check used for error detection on identification numbers, such as bank account numbers, which are used in an application...

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Block check character

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a block check character (BCC) is a character added to a transmission block to facilitate error detection. In longitudinal redundancy checking and cyclic...

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Modbus

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characters for protocol communication. The ASCII format uses a longitudinal redundancy check checksum. Modbus ASCII messages are framed by a leading colon...

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Digital card

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3 characters) End sentinel — one character (generally '?') Longitudinal redundancy check (LRC) — it is one character and a validity character calculated...

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Checksum

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used in practice, such as Fletcher's checksum, Adler-32, and cyclic redundancy checks (CRCs), address these weaknesses by considering not only the value...

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Binary Synchronous Communications

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ETX) is followed by a check sum (block check character or BCC). For USASCII, this is a one character longitudinal redundancy check (LRC); for Transcode...

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LRC

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cluster containing Leukocyte immunoglobulin-like receptors Longitudinal redundancy check, an error detection number calculated over a serial data stream...

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List of algorithms

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in a binary word Redundancy checks Adler-32 Cyclic redundancy check Damm algorithm Fletcher's checksum Longitudinal redundancy check (LRC) Luhn algorithm:...

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Derived unique key per transaction

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includes a 2 hexadecimal digit longitudinal redundancy check (LRC) or a 2 hexadecimal digit cyclical redundancy check (CRC). The following storage areas...

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Index of electronics articles

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– Logic – Log-periodic antenna – Long-haul communications – Longitudinal redundancy check – Long-tailed pair – Long-term stability – Loop – Loop gain...

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IEEE 1355

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constant-weight code detects all single-bit errors. Combined with a longitudinal redundancy check, it avoids the need for a CRC which can double the size of small...

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Dynamic positioning

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DP ship. While the first DP ships had analogue controllers and lacked redundancy, since then vast improvements have been made. Besides that, DP nowadays...

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Celestial navigation

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chronometer and checking it periodically: every day at noon against dead reckoning). Three chronometers provided triple modular redundancy, allowing error...

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Precision approach path indicator

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a PAPI light unit is shown below: Optical construction: Two lamps for redundancy; Anodized aluminium reflectors; Red color filter; One or two lenses; Lamps...

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British Rail Class 800

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the traction system. They are operated in parallel to provide greater redundancy. The power supply converter is designed to work with both sources of power...

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Gender of connectors and fasteners

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designed-in redundancy. In plumbing situations where one-way flow is desired, it is implemented through other means (e.g. air gaps or one-way check valves)...

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Vacuum brake

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two exhausters (and two air compressors for the air brake system) for redundancy. Just as steam locomotives had a small and large ejector, the diesels...

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RBMK

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technology, the RBMK design was optimized for speed of production over redundancy. It was designed and constructed with several design characteristics that...

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English Electric Lightning

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undercarriage, flaps, and airbrakes. Switchable hydraulic circuits were used for redundancy in the event of a leak or other failure. A combination of Dunlop Maxaret...

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Quantum field theory

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symmetry, but a reflection of the "redundancy" of the chosen mathematical description.: 168  To account for the gauge redundancy in the path integral formulation...

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