Learn more about the history of OrbitÂ® chewing gum and the introduction of each of the OrbitÂ® gum flavors and OrbitÂ® gum facts. 1  1944 The history of OrbitÂ® Gum dates back to World War II. 2  Since they were no longer available on the civilian market, Wrigley began production of a new gum called OrbitÂ®.
Passive POE usually refers to any device using POE to power that is not 802.3af/at. This includes things like cameras and radio antennas that run on 24V POE. Passive POE does not do a hand shake so it is extremely important to know what POE voltage your device requires before plugging in the CAT5 cable and powering it up. If you connect the wrong voltage you can easily burn up your device.
The bottom line is that passive scanning in systems can expose a lot of information about all aspects of the system in normal communications without intruding upon operations. Active scanning has the potential to discover more information, and when combined with passive scanning, it gives a more complete picture.