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ITU-T L.1200 (05/2012)

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Direct current power feeding interface up to 400 V at the input to telecommunication and ICT equipment
Recommendation ITU-T L.1200 specifies the direct current (DC) interface between the power feeding system and ICT equipment connected to it. It also describes normal and abnormal voltage ranges, and immunity test levels for ICT equipment to maintain the stability of telecommunication and data communication services. The specified interface is operated from a DC power source of up to 400 V to allow increased power consumption and equipment power density, in order to obtain higher energy efficiency and reliability with less material usage than using a lower voltage such as -48 VDC or AC UPS power feeding solutions.
Approval date: 2012-05-29
Provisional name:L.specDC
Approval process:AAP
Status: In force
Maintenance responsibility: ITU-T Study Group 5
Further details: Patent statement(s)
Development history
Ed. ITU-T Recommendation Status Summary Table of Contents Download
1 L.1200 (05/2012) In force