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BS 5549:1978 Specification for modular plug-in unit and standard 19-inch rack mounting unit based on NIM standard (for electronic nuclear instruments)
standard by BSI Group, 10/31/1978
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Full Description
Standard dimensions of a modular system, based on NIM standard, comprising a plug-in unit, type N, the corresponding 19-inch rack mounting unit, Type NC, and the associated connectors.Cross References:
IEC 297
IEC 482
IEC 516