Gearing up for Power over Ethernet

摘要

After the introduction of the Camera Link standard, camera vendors looked for a means to lower the costs of cabling needed to both power and transfer data from these cameras. What emerged was the Power over Camera Link (or PoCL) standard that reassigned pins, originally assigned as ground, as power lines. This allowed vendors to develop cameras that required only one MDR-16 connector with the added benefit of delivering a maximum 4 W of power to the camera.