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ČSN is a protected designation of Czech national technical standards.
Environmental Engineering (EE); Power supply interface at the input to telecommunications equipment; Part 2: Operated by direct current (dc)
Standard published on 1.4.2008
Selected format:Environmental Engineering (EE); Power supply interface at the input to telecommunications and datacom (ICT) equipment; Part 2: Operated by -48 V direct current (dc)
Standard published on 1.8.2012
Selected format:Environmental Engineering (EE); Power supply interface at the input to telecommunications and datacom (ICT) equipment; Part 2: Operated by -48 V direct current (dc)
Standard published on 1.4.2017
Selected format:Environmental Engineering (EE); Power supply interface at the input of Information and Communication Technology (ICT) equipment; Part 2: -48 V Direct Current (DC)
Standard published on 1.10.2019
Selected format:Environmental Engineering (EE); Power supply interface at the input of Information and Communication Technology (ICT) equipment; Part 2: -48 V Direct Current (DC)
Standard published on 1.2.2023
Selected format:Environmental Engineering (EE); Power supply interface at the input of Information and Communication Technology (ICT) equipment; Part 2: -48 V Direct Current (DC)
Standard published on 1.2.2025
Selected format:Rozbor vlivu prostředí (EE) - Rozhraní pro napájení na vstupu telekomunikačních zařízení - Část 3: Napájení z usměrňovače, ze střídavého zdroje nebo stejnosměrného zdroje o napětí do 400 V (Norma k přímému použití jako ČSN).
Standard published on 1.1.2004
Selected format:Environmental Engineering (EE); Power supply interface at the input of Information and Communication Technology (ICT) equipment; Part 3: Up to 400 V Direct Current (DC)
Standard published on 1.1.2022
Selected format:Environmental Engineering (EE); Power supply interface at the input of Information and Communication Technology (ICT) equipment; Part 3: Up to 400 V Direct Current (DC)
Standard published on 1.6.2023
Selected format:Environmental Engineering (EE) - Power supply interface at the input to telecommunications and datacom (ICT) equipment - Part 3: Operated by rectified current source, alternating current source or direct current source up to 400 V - Sub-part 1: Direct current source up to 400 V
Standard published on 1.8.2012
Selected format:Latest update: 2026-06-09 (Number of items: 2 281 484)
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