Proprietary and Industry Specifications
In addition to supporting IEEE PoE standards, Ruckus ICX switches support a Ruckus proprietary enhancement called PoE+ Overdrive. ICX switches also support PoH, which is an industry specification for up to 95W. Power over HDBaseT (PoH) is another way for ICX switches to provide any amount of power up to 95W (thus competing directly with Cisco UPOE).
Proprietary PoE+ Overdrive: Ruckus PoE+ Overdrive of up to 45W over 2-Pairs
Industry specification PoH: MicroSemi HDBaseT up to 95W over 4-Pairs (Similar to UPOE, but higher power.)
Proprietary UPOE: Cisco implementation of 60W over 4-Pairs (Also known as PoE++ or PoE+ over 4-Pairs.)
PoE+ Overdrive is based on the ability to support 802.3at. Ruckus implemented a mechanism to request higher amounts of power above the Class 4 (30W) by way of LLDP. This ability requires the ICX switch hardware to be robust enough to handle the extra current, temperature, and overall stress of supporting up to 45W over the same 2-Pairs—this is a Ruckus differentiator.
ICX Switches and PoE+ Overdrive
ICX-7650 |
8 |
40 |
925mA |
45W |
35.5W |
ICX-7150-48ZP |
16 |
32 |
925mA |
45W |
35.5W |
ICX-7150 |
0 |
12 or 24 or 48 |
650mA |
33W |
28.5W |
ICX-7250 |
8 |
16 or 40 |
650mA |
33W |
28.5W |
ICX-7450 |
8 |
16 or 40 |
- |
- |
25.5W |
ICX-7450-32ZP |
8 |
24 |
- |
- |
- |
PoH is an industry specification which provides 95W, while IEEE 802.3bt with 5-Event classification is the standard that defines PoE Types 3 and 4 (known as 60W and 90W types) over 4-Pairs, along with Classes 5, 6, 7, and 8. These classes provide power in increments of 15W up to 90W. The following table summarizes the PoE alternatives available on a Ruckus ICX switch.
PoE Alternatives on Ruckus ICX Switches
Class |
0 |
1 |
2 |
3 |
4 |
- |
5 |
6 |
7 |
8 |
- |
PSE Watt |
15.4 |
4 |
7 |
15.4 |
30 |
45 |
45 |
60 |
75 |
90 |
95 |
PD Watt |
12.95 |
3.84 |
6.49 |
13 |
25.5 |
- |
40 |
51 |
62 |
71 |
- |
Number of wire pairs |
2-Pairs |
4-Pairs |
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The Power Sourcing Equipment (PSE) Watt is the maximum output power as measured at the RJ45 connector of the PSE (switch port).
The Powered Device (PD) Watt is the worst-case maximum output power delivered at the PD (assuming 100m of Cat5e wiring between the PSE and the PD).