Certified Wireless Network Administrator (CWNA) PW0-105 Chapter 17 Power over Ethernet (PoE)

Chapter 17 Overview History of PoE PoE Devices Planning and Deploying PoE 2 Certified Wireless Network Administrator: CWNA – PW0-105

History of PoE PoE provides power to devices over Ethernet cables –Commonly used for VoIP desk phones –Used for APs and other network devices –The PSTN uses power over phone lines to power analog traditional phones 3 Certified Wireless Network Administrator: CWNA – PW0-105

PoE Types Nonstandard 802.3af , clause at Certified Wireless Network Administrator: CWNA – PW0-105

PoE Devices Powered Device (PD) –Draws or consumes power Power-Sourcing Equipment (PSE) –Provides power –Endpoint PSE –Midspan PSE 5 Certified Wireless Network Administrator: CWNA – PW0-105

PoE Devices (Endpoint PSE) 6 Certified Wireless Network Administrator: CWNA – PW0-105

PoE Devices Endpoint (Alternative A) 10BaseT and 100BaseTX 7 Certified Wireless Network Administrator: CWNA – PW0-105

PoE Devices Endpoint (Alternative A) 1000BaseT 8 Certified Wireless Network Administrator: CWNA – PW0-105

PoE Devices Endpoint (Alternative B) 10BaseT and 100BaseTX 9 Certified Wireless Network Administrator: CWNA – PW0-105

PoE Devices Endpoint (Alternative B) 1000BaseT 10 Certified Wireless Network Administrator: CWNA – PW0-105

PoE Devices Midspan (Alternative A) 10BaseT and 100BaseTX 11 Certified Wireless Network Administrator: CWNA – PW0-105

PoE Devices Midspan (Alternative A) 1000BaseT 12 Certified Wireless Network Administrator: CWNA – PW0-105

PoE Devices Midspan (Alternative B) 10BaseT and 100BaseTX 13 Certified Wireless Network Administrator: CWNA – PW0-105

PoE Devices Midspan (Alternative B) 1000BaseT 14 Certified Wireless Network Administrator: CWNA – PW0-105

PoE Devices Three PSE Solutions 15 Certified Wireless Network Administrator: CWNA – PW0-105

Planning and Deploying PoE Power planning –PSE must be capable of providing needed power Redundancy –Devices powered by PoE must have failover options in enterprise deployments 16 Certified Wireless Network Administrator: CWNA – PW0-105

Chapter 17 Summary History of PoE PoE Devices Planning and Deploying PoE 17 Certified Wireless Network Administrator: CWNA – PW0-105