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Typical power usage of GS752TP
Can anyone tell me what the minimum and typical power consumption would be for this switch? Each watt consumed equates to about $2 per year, so if it uses 100W with some mild traffic then that's $200...
Data Sheet GS516TP, GS728TP, GS728TPP and GS752TP
POWER CONSUMPTION (WHEN ALL PORTS USED, LINE-RATE TRAFFIC AND MAX POE)
Worst case, all ports used, line-rate traffic, max PoE 512.8WPoE budget (PSU/Passthrough) 384W
So with all links at line rate and no PoE but including the PoE power supply overhead it's max. 128.8W
Now asuming the power supply is an 85% efficiency unit, PoE availability alone does require 452W effectively (68W loss by overhead!), the 100% load of the switch does make about 61W for the switch alone.
So we Netgear is about in the same range as a Cisco Catalyst 2960X-48 at 100% load (Cisco Catalyst 2960-X and 2960-XR Series Switches Data Sheet, p.29). 100% to 10% load is about 2% less power only, idle 0% load about 24% so I estimate some 46W for your switch model.
When we compare the 600 USD for a GS752TP to the 3000 USD for the Cisco ... this is a good part for you pay for the additional information they provide. So you can burn much more power on the Cisco until the cost are exceeding the hardware 8-)
Oh CPC does show 60.9W FWIW:
It's not that hard to answer, Cisco give a few example use cases and give a warning that it can vary. It's not likely to vary that much. A figure with nothing at all connected would be easy to measure and give a good starting point. Then a figure with say 8 ports connected with some low traffic would be good. I think if someone measures 50W with 8 ports connected then it's a very good indication, it's not like it's going to jump to 150W for another user with 8 ports. On the other hand if it uses 150W at idle that is a good indication it's power usage will cost more than the switch over its lifetime.
Data Sheet GS516TP, GS728TP, GS728TPP and GS752TP
POWER CONSUMPTION (WHEN ALL PORTS USED, LINE-RATE TRAFFIC AND MAX POE)
Worst case, all ports used, line-rate traffic, max PoE 512.8W
PoE budget (PSU/Passthrough) 384W
So with all links at line rate and no PoE but including the PoE power supply overhead it's max. 128.8W
Now asuming the power supply is an 85% efficiency unit, PoE availability alone does require 452W effectively (68W loss by overhead!), the 100% load of the switch does make about 61W for the switch alone.
So we Netgear is about in the same range as a Cisco Catalyst 2960X-48 at 100% load (Cisco Catalyst 2960-X and 2960-XR Series Switches Data Sheet, p.29). 100% to 10% load is about 2% less power only, idle 0% load about 24% so I estimate some 46W for your switch model.
When we compare the 600 USD for a GS752TP to the 3000 USD for the Cisco ... this is a good part for you pay for the additional information they provide. So you can burn much more power on the Cisco until the cost are exceeding the hardware 8-)
Oh CPC does show 60.9W FWIW:
Thanks, that sounds reasonable. I think 60w ($120 a year) is probably as good as you'd get on a switch of that size.
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