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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.
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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 • 802.3-2005, clause 33 • 802.3at-2009 4 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