5.2 Hardware Issues

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12 Terms

1
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What is Power over Ethernet (PoE)?

Power is provided on an ethernet cable, one wire for both network and electricity capacity.

2
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What is built in power for Power over Ethernet (PoE)?

Endspans.

3
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What is in-line power injectors for Power over Ethernet (PoE)?

Midspans.

4
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What are the stats for PoE?

15.4 Watts DC power, 350 mA max current.

5
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What are the stats for PoE+?

25.5 watts DC power, 600 mA max current.

6
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What are the stats for PoE++ Type 3?

51 Watts, 600 mA max current.

7
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What are the stats of PoE++ Type 4?

71.3 Watts, 960 mA max current.

8
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What is the third version of PoE++?

PoE with 10GBASE-T.

9
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What is a PoE switch?

Ethernet interfaces will have PoE labeled.

10
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Why should you check the switch for total PoE support?

So you can calculate all the devices you’re plugging in.

11
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Why do transceivers need to do?

Match the fiber and wavelength being marked.

12
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How is the power budget calculated?

Determining transmitter power, calculating signal loss, and subtract signal loss from transmitter power.