How many AP can be powered by SRW224G4P??
Hello
I have a question on 300 series PoE switch (SRW224G4P, power budget: 180W).
How many WAP 4410N can be powered by this switch??
How many AP 1242 can be powered by this switch??
Since CDP is not supported yet, I think switch will provide 15.4W power for each AP. So each switch can power up to 11 WAP4410N or AP 1242.
Is this correct??
One other quesiton is
When CDP is supported, can I calculate as below??
WAP4410N (Power draw:10.1W): 180/10.1W = 17.xx -> Up to 17 WAP4410N can be powerd
AP1242 (Power draw:12.4W): 180/12.4W = 14.xx -> Up to 14 WAP4410N can be powerd
Please let me know if this calculation is correct
Best Regards
Allan Kim
Hi Allan,
You mention you wish to use the older SKU p/n SRW224G4P, which has been refreshed and replaced by SRW224G4P-K9-NA
.Here is the EOL notice fior the SKU you detailed;
http://www.cisco.com/en/US/prod/collateral/switches/ps5718/ps9967/end_of_life_notice_c51-626527.html
Why not avail yourself of the newer 300 series switch such as SRW224G4P-K9-NA .
I am using beta code version 1.1 code on my unit.
Version 1.1 will be Generally Available at the end of this month ( fingers crossed), and Version 1.1 firmware supports CDP.
See datasheet for the new product, generations ahead of the old p/n that you mentioned.;
http://www.cisco.com/en/US/prod/collateral/switches/ps5718/ps10898/data_sheet_c78-610061.html
Anyway the AP1240AG isn't a pre-standard device but supports standards based 802.3af, hence i really see no benefit in using the older product..
Datasheet on the AP1240AG correlates with your data, maximum power drawn is 12.4watts.
Allan, your calulations seem spot on.
SRW224G4P-K9-NA as well as the older switch you mention both support aPOE power budget of 180W.
I personally like to be slightly conservative in terms of loading the switch up.. I prefer to spread the load between switches if i can.
But the GUI of the 300 series switch will show the power drawn by the devices.
The device circled below is a AP1142 with wireless-a turned off.
Have fun,
regards Dave
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Thanks in advance.Hi Allan,
You mention you wish to use the older SKU p/n SRW224G4P, which has been refreshed and replaced by SRW224G4P-K9-NA
.Here is the EOL notice fior the SKU you detailed;
http://www.cisco.com/en/US/prod/collateral/switches/ps5718/ps9967/end_of_life_notice_c51-626527.html
Why not avail yourself of the newer 300 series switch such as SRW224G4P-K9-NA .
I am using beta code version 1.1 code on my unit.
Version 1.1 will be Generally Available at the end of this month ( fingers crossed), and Version 1.1 firmware supports CDP.
See datasheet for the new product, generations ahead of the old p/n that you mentioned.;
http://www.cisco.com/en/US/prod/collateral/switches/ps5718/ps10898/data_sheet_c78-610061.html
Anyway the AP1240AG isn't a pre-standard device but supports standards based 802.3af, hence i really see no benefit in using the older product..
Datasheet on the AP1240AG correlates with your data, maximum power drawn is 12.4watts.
Allan, your calulations seem spot on.
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I personally like to be slightly conservative in terms of loading the switch up.. I prefer to spread the load between switches if i can.
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