01-17-2010 02:54 PM - edited 03-15-2019 09:05 PM
I am runing IOS 12.4(20)T3 on the Cisco 881 router. I am trying to enable the inline power on the interface fa0. I have the inline power source hook up the to router and the phone hook up to the port. I tried both Cisco phone and Nortel IP phone on both fa0 and fa1. But nothing is happening. From the documentation it should be auto detect. Command reference shows inline power command is
Router(config-if)# power inline auto/never
But there is no such option in the CLI. Can someone please tell me what I should do to enable the inline power. Thanks.
01-17-2010 03:59 PM
Basic question but just checking: Did you install the PoE daughter card onto the mainboard?
01-17-2010 04:20 PM
The 881 already has fa0 and fa1 ready for POE according to the data sheet. Correct me if I am wrong but I don't see from the data sheet it requires POE daughter card.
01-17-2010 05:09 PM
The 881 can only run PoE on these ports with the addition of an optional intermal module and an external 48v power supply. Without the internal module, the IOS will not recognize the system's ability to run PoE.
Hope this helps,
Robert
01-17-2010 05:26 PM
Thanks for the information. I see from the data sheet table there is a 800-IL-PM=2 for the inline power module. I believe we ordered the module with the router but don't know if they came installed or separately. Would you know a show command on the router that will tell me if I have the module install or not?
01-17-2010 05:48 PM
I have not touched one of these myself, but the module should show up in a show inventory. If it does not, you could try a show diagnostic. You are running a new enough IOS that it should recognize the module and the inline power commands, so I would guess that you most likely don't have the module installed.
Depending on who you purchased the system from, it could come installed or in a separate package. The way Cisco packages items, it would be hard to miss the extra part. It would be a fairly large box.
Hope this helps,
Robert
01-17-2010 06:09 PM
I do have the module installed but here is no such command Router(config-if)# power inline auto/never available on my router. Is there a way to enable or check the PoE on the interface?
Branch#sh inventory
NAME: "881", DESCR: "881 chassis, Hw Serial#: FHK1333608N, Hw Revision: 0x100"
PID: CISCO881-SEC-K9 , VID: V01 , SN: FHK1333608N
NAME: "ESW Power Daughter Card", DESCR: "4-Port ESW Power Daughter Card"
PID: 800-IL-PM-2 , VID: 4.0, SN: FOC13335JA0
Branch(config)#int fa0
Branch(config-if)#p?
pppoe pppoe-client
Branch(config-if)#p
03-04-2010 12:50 PM
Joe -
How did you ever get this resolved? I'm running into exactly the same issue, where all of the right hardware components are there, but the command doesn't even exist.
Thanks...
Mike
03-05-2010 05:25 AM
You also need to connect a 48-vdc power adapter:
The real mistery is to find the part number for said brick.
03-05-2010 07:12 AM
I found out some phones will turn on as soon as I plug in to the port but some doesn't. If it doesn't you need to shut and no shut the port.
06-13-2013 04:24 PM
The brick is a Delta Electronics ADP-80LB.
07-15-2011 07:46 AM
Hi, i have in my hands a 886, an extra power adaptor and a module for the chassis (POE card for the mainboard).
I really can't find a hw installation guide for the installation of this module.
Can some point this out?
Regards
Anthony
07-15-2011 09:54 AM
03-05-2010 05:32 AM
Yeah, both power bricks came with it.
Turns out the issue magically went away. A combination of manually enabling CDP and 2 reboots, and the power negotiation just kind of started working.
03-05-2010 05:56 AM
Just curious, what are the P/Ns on the bricks labels ?
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