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Summation check
In telecommunication, the term summation check has the following meanings:
1. A check based on the formation of the sum of the digits of a numeral.
Note: The sum of the individual digits is usually compared with a previously computed value.
2. A comparison of checksums on the same data on different occasions or on different representations of the data in order to verify data integrity. Synonym sum check.
Source: from Federal Standard 1037C
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