Pre-standard PoE and NME-16ES-1G-P in 2811 router

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Sep 22nd, 2008
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Hi all,


I just got 5 routers (CISCO2811-AC-IP) with 5 NME-16ES-1G-P modules for them.


I haven't used a switch module in a router in years, and have never used one for PoE.


Anyways, I found:


http://www.cisco.com/en/US/prod/collateral/routers/ps5855/product_data_sheet0900aecd8028d15f.html


From that link:


"The new Cisco EtherSwitch service modules (NME-16ES-1G-P, NME-X-23ES-1G-P, NME-XD-24ES-1S-P, and NME-XD-48ES-2S-P only) are capable of providing both Cisco pre-standard and IEEE 802.3af Power over Ethernet (PoE) support when inserted in Cisco 2800 Series or 3800 Series Integrated Services Routers (requires an upgrade to an AC-IP power supply)."


If I plug in a Cisco 7970 phone (which uses 802.3af if I'm not mistaken?), it does supply power.


Unfortunately, this customer has only the older 7940 and 7960 phones, which require the pre-standard PoE. And of course, when I plug in a 7940, the link light on the NME card lights up for that port, but the phone doesn't have power, and if I do "show power inline" I see no power being supplied on that port.


Am I missing something in terms of how to get pre-standard PoE devices working in the scenario, or is that document I quoted above incorrect?


Any help would be most appreciated!


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maltuna Tue, 09/23/2008 - 11:44
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Just thought I'd share the solution in case anyone else had this issue.


The NME module shipped with 12.2(35) on it, and I updated it to 12.2(46)SE


This solved the pre-standard PoE issue. Must have been some bug with the factory version.

t.joy Sat, 07/30/2011 - 13:31
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Hi


Just to carry on this thread and maybe help, I experienced the same issue.  NME-16ES-1G-P shipped with 12.2.35,  cisco 7940, 7910 and 7912 all experienced no Power from the 2811/2821 with AC-IP PSU.  Port would error disable and state loopback detected.  I upgrade to 12.2.50 code and all was fine.

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