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shahreezal.ahmad
Beginner

PoE Switches - How Does PoE Recognize Devices Connected Requires Power?

Cisco PoE Switches Enquiries

  1. How does PoE switches recognize which devices connected requires power? i.e. When you plug a Cisco IP Phone, the PoE switch will power the Cisco IP Phone but when you plug in a computer, it does not power it. What is the mechanicm behind that?
  2. How does PoE switches know to provide power to PoE devices if the switch CPU is saturated (100%), does it affect PoE devices (IP Phones) ?
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Leo Laohoo
VIP Community Legend