This is an updated deck of a presentation on PoE at the 2018 Xcel Energy Efficiency Expo presented at the Saint Paul RiverCentre on May 2, 2018

1. POWER OVER ETHERNET
Using Network Switches for Energy Management
Lester Shen
Director of Innovative Technologies
May 2, 2018

2. Pg. 2
Intelligent Buildings

3. Pg. 3
Intelligent Office Spaces

4. Pg. 4
Server Room/Network Closet
4

5. Pg. 5
Network Switches

6. Pg. 6
Networked Computers

7. Pg. 7
Flow of Electricity in Server Rooms
7

8. Pg. 8
Flow of Electricity in Server Rooms
8

9. Pg. 9
Cat 5e/6a Ethernet Cables

10. Pg. 10
One Cable, Two Purposes
Some wires transfer
data
Some wires transfer
power

11. Pg. 11
Low Voltage DC Electricity

12. Pg. 12
Network Switches =
Data Transfer Equipment AND Power Sourcing Equipment

13. Pg. 13
Powered Devices

14. Pg. 14
Comparison of PoE Switches
PoE PoE+ UPoE
Launched 2000 2008 2011
Max power 15.4W 30W 60W
Avail power 12.95W 25.50W 51W

15. Pg. 15
Comparison of PoE Switches
PoE PoE+ UPoE
Launched 2000 2008 2011
Max power 15.4W 30W 60W
Avail power 12.95W 25.50W 51W

16. Pg. 16
Comparison of PoE Switches
PoE PoE+ UPoE
Launched 2000 2008 2011
Max power 15.4W 30W 60W
Avail power 12.95W 25.50W 51W

17. Pg. 17
PoE LED Lighting

18. Pg. 18
Sensors

19. Pg. 19
PoE Zero/Thin Clients

20. Pg. 20
PoE HVAC Controller

21. Pg. 21
DC-powered devices

22. Pg. 22
Low Voltage Relay to Control
AC-Powered Plug Loads

23. Pg. 23
Port Scheduling

24. Pg. 24
Intelligent Office Spaces

25. Pg. 25
Intelligent Buildings

26. Lester Shen
lshen@mncee.org
612-335-5883 Questions?