30. Padrões IEEE ( Institute of Electrical and Electronic Engineers)
31.
32.
33.
34.
35.
36.
37.
38.
39.
40.
41.
42. Organizações de padronização Internacionais EIA Electronic Industries Association TIA Telecommunications Industries Association IEEE Institute of Electrical and Electronics Engineers ISO International Organization for Standardization IEC International Electrotechnical Comission ABNT Associação Brasileira de Normas Técnicas Brasil