The USB port on most personal computers can be a handy source of power. It is not allowed to deliver the maximum specified current (500 mA) without software negotiation, but in practice the PC has no direct control over current drawn from the USB...
Advanced Telecom Computing Architecture
(AdvancedTCA) is an open standard for the
implementation of telecom computing and data
center systems. AdvancedTCA poses powermanagement
challenges for blade designers.
While integrated components for Power over
Ethernet (PoE) applications can provide ready
solutions for PoE-powered devices, understanding
the PoE speciﬁ cation can enable lower-cost