SG102-24 & SG100-24 power consumption

Hello,
I would like to know the minimum and max. power consumption for the SG102-24 and SG100-24 switches (European versions, 220V)?
Thank you,
Regards

Hi Cgros,
This switch support 100–240VAC, 50–60 Hz
Also this is datasheet for SG100 switches
http://www.cisco.com/c/en/us/products/collateral/switches/small-business-smart-switches/datasheet_C78-582017.pdf
Thanks,
Moh

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Since I have upgraded from 7.1 then the power consumption increased slightly unbelievable. I have new batteries in my iphone 5 and when I had at ios 7 so was consumption that allows the battery envelope in two days and with ios 7.1 so is it only 12 hours

Since I have upgraded from 7.1 then the power consumption increased slightly unbelievable. I have new batteries in my iphone 5 and when I had at ios 7 so was consumption that allows the battery envelope in two days and with ios 7.1 so is it only 12 hours before I need to recharge the battery.

Wrote a little wrong the first time!
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Powermanager 1.60 has removed the abilty to show the current power consumption in the tray.

Hi,
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a frustrated,
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you should try uninstalling & re install it http://www-307.ibm.com/pc/support/site.wss/document.do?lndocid=MIGR-70602
Message Edited by GMAC-R60 on 08-08-2009 12:38 PM
Thinkpad R61 7733-1GU
Thinkpad X61T 7762-54U
Thinkpad X60T 6363-4GU
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Last edited by demian (2010-03-08 13:20:53)

You can measure your G5's power usage with this device

Actual power consumption on WS-C6509-E

Hello everyone,
I have a WS-C6509-E with two WS-CAC-6000W power supplies. I have to determine what is the real power consumption of the whole device but I noticed that there is a mismatch between measurements and show power output so I would very much appreciate if someone could explain why is that so.
I did the following test to try figure out the consumption from the power grid.
Step 1. When both supplies are active, show power gives me the following output:
C6509Test#show power
system power redundancy mode = redundant
system power total =     5771.64 Watts (137.42 Amps @ 42V)
system power used =      2253.72 Watts (53.66 Amps @ 42V)
system power available = 3517.92 Watts (83.76 Amps @ 42V)
                        Power-Capacity PS-Fan Output Oper
PS   Type               Watts   A @42V Status Status State
1    WS-CAC-6000W       5771.64 137.42 OK     OK     on
2    WS-CAC-6000W       5771.64 137.42 OK     OK     on
                        Pwr-Allocated Oper
Fan Type               Watts   A @42V State
1    WS-C6509-E-FAN      150.36 3.58 OK
                        Pwr-Requested Pwr-Allocated Admin Oper
Slot Card-Type          Watts   A @42V Watts   A @42V State State
1    WS-X6748-GE-TX      325.50 7.75   325.50 7.75 on    on
2    WS-X6748-GE-TX      325.50 7.75   325.50 7.75 on    on
3    WS-X6748-GE-TX      325.50 7.75   325.50 7.75 on    on
4    WS-X6748-GE-TX      325.50 7.75   325.50 7.75 on    on
5    VS-S720-10G         338.10 8.05   338.10 8.05 on    on
6    VS-S720-10G         338.10 8.05   338.10 8.05 on    on
7    WS-X6724-SFP        125.16 2.98   125.16 2.98 on    on
system auxiliary power mode = off
system auxiliary power redundancy operationally = non-redundant
system primary connector power limit =   10920.00 Watts (260.00 Amps @ 42V)
system auxiliary connector power limit = 10500.00 Watts (250.00 Amps @ 42V)
system primary power used =              2253.72 Watts (53.66 Amps @ 42V)
system auxiliary power used =            0 Watt
Step 2. Then I switched off power supply 1:
C6509Test#
*Jan 22 09:29:21.753: %C6KPWR-SP-4-PSOUTPUTDROP: Power supply 1 output has dropp
ed
*Jan 22 09:29:21.769: %C6KPWR-SP-2-PSFAIL: power supply 1 output failed.
*Jan 22 09:29:21.769: %C6KPWR-SP-4-PSREDUNDANTONESUPPLY: in power-redundancy mod
e, system is operating on one power supply.
C6509Test#
C6509Test#show power
system power redundancy mode = redundant
system power redundancy operationally = non-redundant
system power total =     5771.64 Watts (137.42 Amps @ 42V)
system power used =      2253.72 Watts (53.66 Amps @ 42V)
system power available = 3517.92 Watts (83.76 Amps @ 42V)
                        Power-Capacity PS-Fan Output Oper
PS   Type               Watts   A @42V Status Status State
1    WS-CAC-6000W       3780.00 90.00 -      -      off
2    WS-CAC-6000W       5771.64 137.42 OK     OK     on
                        Pwr-Allocated Oper
Fan Type               Watts   A @42V State
1    WS-C6509-E-FAN      150.36 3.58 OK
                        Pwr-Requested Pwr-Allocated Admin Oper
Slot Card-Type          Watts   A @42V Watts   A @42V State State
1    WS-X6748-GE-TX      325.50 7.75   325.50 7.75 on    on
2    WS-X6748-GE-TX      325.50 7.75   325.50 7.75 on    on
3    WS-X6748-GE-TX      325.50 7.75   325.50 7.75 on    on
4    WS-X6748-GE-TX      325.50 7.75   325.50 7.75 on    on
5    VS-S720-10G         338.10 8.05   338.10 8.05 on    on
6    VS-S720-10G         338.10 8.05   338.10 8.05 on    on
7    WS-X6724-SFP        125.16 2.98   125.16 2.98 on    on
system auxiliary power mode = off
system auxiliary power redundancy operationally = non-redundant
system primary connector power limit =   10920.00 Watts (260.00 Amps @ 42V)
system auxiliary connector power limit = 10500.00 Watts (250.00 Amps @ 42V)
system primary power used =              2253.72 Watts (53.66 Amps @ 42V)
system auxiliary power used =            0 Watt
Step 3. Now I disconnect the power input 1 on running power supply 2 thus leaving the device working on only one out of four power inputs:
C6509Test#
*Jan 22 09:35:50.297: %C6KPWR-SP-4-INPUTCHANGE: Power supply 2 input has changed
. Power capacity adjusted to 2671.20W
*Jan 22 09:35:50.297: %C6KPWR-SP-4-PSOUTPUTDROP: Power supply 2 output has dropp
ed
C6509Test#show power
system power redundancy mode = redundant
system power redundancy operationally = non-redundant
system power total =     2671.20 Watts (63.60 Amps @ 42V)
system power used =      2253.72 Watts (53.66 Amps @ 42V)
system power available = 417.48 Watts ( 9.94 Amps @ 42V)
                        Power-Capacity PS-Fan Output Oper
PS   Type               Watts   A @42V Status Status State
1    WS-CAC-6000W       3780.00 90.00 -      -      off
2    WS-CAC-6000W       2671.20 63.60 OK     OK     on
                        Pwr-Allocated Oper
Fan Type               Watts   A @42V State
1    WS-C6509-E-FAN      150.36 3.58 OK
                        Pwr-Requested Pwr-Allocated Admin Oper
Slot Card-Type          Watts   A @42V Watts   A @42V State State
1    WS-X6748-GE-TX      325.50 7.75   325.50 7.75 on    on
2    WS-X6748-GE-TX      325.50 7.75   325.50 7.75 on    on
3    WS-X6748-GE-TX      325.50 7.75   325.50 7.75 on    on
4    WS-X6748-GE-TX      325.50 7.75   325.50 7.75 on    on
5    VS-S720-10G         338.10 8.05   338.10 8.05 on    on
6    VS-S720-10G         338.10 8.05   338.10 8.05 on    on
7    WS-X6724-SFP        125.16 2.98   125.16 2.98 on    on
system auxiliary power mode = off
system auxiliary power redundancy operationally = non-redundant
system primary connector power limit =   10920.00 Watts (260.00 Amps @ 42V)
system auxiliary connector power limit = 10500.00 Watts (250.00 Amps @ 42V)
system primary power used =              2253.72 Watts (53.66 Amps @ 42V)
system auxiliary power used =            0 Watt
C6509Test#
*Jan 22 09:37:22.317: %C6KPWR-SP-4-INPUTCHANGE: Power supply 2 input has changed
. Power capacity adjusted to 5771.64W
*Jan 22 09:38:58.523: %C6KPWR-SP-4-PSOK: power supply 1 turned on.
*Jan 22 09:38:58.535: %C6KPWR-SP-4-PSREDUNDANTBOTHSUPPLY: in power-redundancy mo
de, system is operating on both power supplies.
C6509Test#
Step 4. I used the current clamp to measure the current on the remaining power input and it reads 4.9 A.
When I multiply the current with voltage I get
P=4.9*230=1127 W.
So why does the show power output gives system power used = 2253.72 Watts, which is actually double value of measured 1127 W? What am I missing?
Thank you in advance for any help on this,
Marin

marin_otto.
Where are you located and what AC line voltage are you operating on (208 or 230v)? I ran into your post and was wondering if you were operating on 208v which is line to line (two hots) and perhaps you are only measuring current on one line, effectively half the power.
Dave

Applicaton power consumption

Perhaps this app already exists. If not, would someone please write one. I want an app that monitors each application's run time/power consumption (or whatever you want to call it. I want to be able to open this app and instantly see which app is consuming my power so I can determine if it is worth keeping. If there is already a handy app for this please let me know. Thanks in advance.

Sad news, but thanks for the reply.

MacBook Power Consumption

We operate tens of macbooks at our campus for student loans. We are trying to cut on the power consumption of the loans operation. I am interested to know how much power does the power brick consume when:
a) nothing is connected to the MagSafe jack.
b) the macbook is fully charged and the LED is lit green.
Please don't guess or think! give me a firm answer if you know. I appreciate that!

I pulled out my 1940s era General Electric Wattmeter. This is a two-coil instrument that measures Vrms * Irms * cos( phase angle) = actual Watts. This type of meter does not measure reactive power that does not deliver energy to the load but circulates in the system. Reactive power is a concern because the out-of-phase current of reactive power does cause energy loss (I squared R loss) by heating the wires carrying the current.
Power brick energized, but not attached to computer - unmeasurable.
Power brick energized, attached to computer, green LED on - about 0.7 Watt.
Power brick energized, attached to computer, OSX booted, but idle - 8 to 10 Watts.
Power brick energized, attached to computer, screen saver running - 8 - 12.5 Watts.
Power brick energized, attached to computer, 5th Element DVD playing - 12.5 -15 Watts.
Power brick energized, attached to computer, Grapher, contours.gcx - 18.5 - 20.5 Watts.
Once in a while, I could get the MacBook to peak at about 25 Watts (averaged by the mechanical dynamics of my meter) of power consumption. The initial plug-in of the power pack to the socket also consumes several amps for a split second - too hard to measure accurately with my crude equipment. There's also a little audible crack! as the prong touches the outlet, so it is obviously a pretty large momentary in-rush of current.
When the power brick is unplugged, the Irms current draw is about 22 mA according to my Fluke 8060A. Presumably that's almost all reactive at close to -90 degrees phase angle relative to the voltage. Switch mode power packs like the MacBook's tend to be capacitive loads. That's about 2.64 VARs of reactive power.
When the MacBook is idling at about 9.5 Watts of real power consumption, the current draw is about 245 mA. The real power corresponds to about 70 mA of in phase current. This gives the surprising result of about 234 mA of lagging reactive current.
In terms of what real-world thing can you do? For 10 to 100 MacBooks, I don't belive it is worthwhile to do anything. Probably remediating the power supply to reduce the reactive current load would be good thing. At industrial scales, factories worry about current phase angle a lot. Power providers bill for reactive current they have to generate, otherwise they would lose revenue by heating their transmission lines, but the customer gets no energy delivered to the manufacturing process by the out-of-phase reactive current.
Probably, the energy consumed and eventual environmental waste generated by remediating 10-100 power supplies, not to mention the engineering hours required, would not offset the power that would be saved over the useful life of the MacBook.
On the other hand, grumbling at Apple to contract with the manufacturer for a greener design for the power pack for the many thousands of users would be a good thing on which to expend a little energy.
PS: just to be sure my Wattmeter is giving reasonable results, I plugged in a "60 Watt" bulb that's been used for about 200 hours. According to the meter, it draws 58 watts.
Bill
Message was edited by: impulse_telecom

SG102-24 & SG100-24 power consumption

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