Difference between CP-PWR-CUBE and CP-PWR-CUBE-3 for 7941G

Unanswered Question
Jul 27th, 2009
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Hi


Anybody know if an older CP-PWR-CUBE will fit and work with a 7941G ?


Cisco recommends the CP-PWR-CUBE-3 in the user guide but the specs seem to be exactly the same.


I just want to know whether I can just buy the cheaper CP-PWR-CUBE for my 7941G and I won't have any issues using it.


Thanks

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Rob Huffman Tue, 07/28/2009 - 04:39
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Hi Alan,


Because the 7941G supports Cisco pre-standard power the CP-PWR-CUBE will work just fine :)


Hope this helps!

Rob

sabb010101 Wed, 07/29/2009 - 10:22
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Thanks Rob


I have read on the web that CP-PWR-CUBE-3 has a longer plug to fit the 7941G, 7961G and 7971G and hence my question about whether the older CP-PWR-CUBE will fit and power up the 7941G.


I understand that the CP-PWR-CUBE-3 is backward comptible with older phones but is the CP-PWR-CUBE forward compatible with the newer phones ?


Thanks

Rob Huffman Wed, 07/29/2009 - 10:46
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Hi Alan,


The plug is a little longer because on the newer IP Phone models like the 7941G there is an additional piece of plastic (in a semi circle) around the power plug input on the base of the phone. This can be easily trimmed with a pair of side-cutters and you are good to go :) It depends on how much $$ you will be saving, if you want to go this direction. A 30 second trim job and "Bob's your Uncle"!


Hope this helps! Cheers!

Rob

davidlu766 Wed, 07/29/2009 - 18:18
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Yes, there is a difference. If you have a 79x1, you MUST have a CP-PWR-CUBE-3 or a POE switch, otherwise it just won't work. The CP-PWR-CUBE is ONLY for the 7940G and the 7960G. If you use it with the 7941G or 7961G it won't fit.


Hope that helps.

Rob Huffman Thu, 07/30/2009 - 05:57
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Hi Alan,


David is right here (my bad!!) +5 points for this David :)


I just took my own advice and tried a CP-PWR-CUBE with a 7941G. Even with the modifications I suggested it did not fit properly and would be unusable. I could have sworn we did this b4 but.......


Anyways, sorry for leading you down the wrong path here, I should have tested before I responded.


Cheers!

Rob

sabb010101 Thu, 07/30/2009 - 07:44
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Thanks a lot David and Rob for your prompt replies.


Now I know for sure that I should not waste my money on a CP_PWR_CUBE !



Rob Huffman Thu, 07/30/2009 - 08:06
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Hi Alan,


You are most welcome my friend! Sorry for the "bum" info.


Cheers!

Rob

Cory Andrews Thu, 12/13/2012 - 10:03
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There are some companies out there making 3rd party universal power supplies for Cisco CP-79XX Series desktop phones.  These folks offer a backward compatible version of the Cisco CP-PWR-CUBE3.

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