ITU-T - L.1001
(Pre-Published) External universal power adapter solutions for stationary information and communication technology devices
|Publication Date:||1 November 2012|
This Recommendation defines the requirements for a universal power adapter solution (UPA) designed for ICT devices for stationary (non-portable) use.
This Recommendation also takes into consideration energy efficiency improvement, greenhouse gas (GHG) emission reductions and optimization in the use of scarce and raw materials.
The UPA is an external power adapter that interfaces to the low voltage input of an ICT device by converting the AC mains voltage to a low DC voltage output.
UPA is applicable to stationary ICT devices at home, where normal operation requires a permanent connection to a household AC power source.
Stationary means that the ICT device does not have an integral battery as the primary power source and would not be expected to be transported by the user on an everyday basis in normal operation. However, it includes ICT devices with battery backup in case of power supply failure.
UPA does not provide any charge control for rechargeable batteries.
This Recommendation is complementary to [ITU-T L.1000] and aims to cover the widest range possible of ICT devices for stationary use within the defined voltage and power ranges. It considers basic configurations and general requirements for the UPA and their interfaces, including cables, connectors, voltage, current, ripple, noise, energy efficiency, safety, electromagnetic compatibility, resistibility and eco-environmental specifications.
Future revisions could include compatibility with [ITU-T L.1200] DC interfaces or with SELV DC to maximize efficiency and use of the UPA. These DC sources can be made available on renewable energy systems or on power sockets that may be found in transportation systems (boats, trains, planes, buses, etc.).