connecting Cisco Aironet 1141 Access point to Cisco 4507 PoE switch

[prema.params]

I am trying to connect Cisco Aironet 1141 Access point to Cisco 4507 PoE switch. The AP is not working with PoE

but it works if I connect it with a power cord. How do I enable the AP for PoE

[Scott Fella]

Maybe this link will help.

http://www.cisco.com/en/US/docs/wireless/access_point/1140/autonomous/getting_started/guide/ap1140aut_getstart.html#wp42319

Sent from my iPhone

[Leo Laohoo]

What do you mean by "not working with PoE"?  When you plug the WAP to the port are the lights blinking?

Can you post the output to the command "sh power inline" please?

[prema.params]

Yes, There is no green light. Here is the output for sh power inline

Interface Admin  Oper            Power(Watts)     Device              Class
                            From PS    To Device
--------- ------ ---------- ---------- ---------- ------------------- -----

Fa3/1     auto   off        0.0        0.0        3825                n/a
Fa3/2     auto   off        0.0        0.0        3825                n/a
Fa3/3     auto   off        0.0        0.0        VG200               n/a
Fa3/4     auto   off        0.0        0.0        VG248               n/a
Fa3/5     auto   off        0.0        0.0        n/a                 n/a
Fa3/6     auto   off        0.0        0.0        n/a                 n/a
Fa3/7     auto   off        0.0        0.0        n/a                 n/a
Fa3/8     auto   off        0.0        0.0        n/a                 n/a
Fa3/9     auto   off        0.0        0.0        n/a                 n/a
Fa3/10    auto   off        0.0        0.0        n/a                 n/a
Fa3/11    auto   off        0.0        0.0        n/a                 n/a
Fa3/12    auto   off        0.0        0.0        n/a                 n/a
Fa3/13    auto   on         6.3        6.3        IP Phone 7960       n/a
Fa3/14    auto   off        0.0        0.0        n/a                 n/a
Fa3/15    auto   off        0.0        0.0        n/a                 n/a
Fa3/16    auto   off        0.0        0.0        n/a                 n/a
Fa3/17    auto   on         6.3        6.3        IP Phone 7960       n/a
Fa3/18    auto   on         6.3        6.3        IP Phone 7940       n/a
Fa3/19    auto   on         6.3        6.3        IP Phone 7910       n/a
Fa3/20    auto   off        0.0        0.0        n/a                 n/a
Fa3/21    auto   on         6.3        6.3        IP Phone 7960       n/a
Fa3/22    auto   off        0.0        0.0        n/a                 n/a
Fa3/23    auto   on         6.3        6.3        IP Phone 7960       n/a
Fa3/24    auto   on         6.3        6.3        IP Phone 7960       n/a
Fa3/25    auto   off        0.0        0.0        n/a                 n/a
Fa3/26    auto   on         6.3        6.3        IP Phone 7960       n/a
Fa3/27    auto   off        0.0        0.0        n/a                 n/a
Fa3/28    auto   off        0.0        0.0        n/a                 n/a
Fa3/29    auto   on         6.3        6.3        IP Phone 7960       n/a
Fa3/30    auto   off        0.0        0.0        n/a                 n/a
Fa3/31    auto   on         6.3        6.3        IP Phone 7960       n/a
Fa3/32    auto   on         6.3        6.3        IP Phone 7960       n/a
Fa3/33    auto   off        0.0        0.0        n/a                 n/a
Fa3/34    auto   on         6.3        6.3        IP Phone 7940       n/a
Fa3/35    auto   off        0.0        0.0        n/a                 n/a
Fa3/36    auto   off        0.0        0.0        n/a                 n/a
Fa3/37    auto   off        0.0        0.0        n/a                 n/a
Fa3/38    auto   off        0.0        0.0        IP Conference Stati n/a
Fa3/39    auto   off        0.0        0.0        n/a                 n/a
Fa3/40    auto   off        0.0        0.0        n/a                 n/a
Fa3/41    auto   off        0.0        0.0        n/a                 n/a
Fa3/42    auto   on         6.3        6.3        IP Phone 7940       n/a
Fa3/43    auto   off        0.0        0.0        n/a                 n/a
Fa3/44    auto   on         6.3        6.3        IP Phone 7960       n/a
Fa3/45    auto   off        0.0        0.0        n/a                 n/a
Fa3/46    auto   on         6.3        6.3        IP Phone 7960       n/a
Fa3/47    auto   off        0.0        0.0        n/a                 n/a
Fa3/48    auto   on         6.3        6.3        IP Phone 7940       n/a
Fa4/1     auto   off        0.0        0.0        n/a                 n/a
Fa4/2     auto   off        0.0        0.0        n/a                 n/a
Fa4/3     auto   off        0.0        0.0        n/a                 n/a
Fa4/4     auto   off        0.0        0.0        n/a                 n/a
Fa4/5     auto   off        0.0        0.0        n/a                 n/a
Fa4/6     auto   on         6.3        6.3        IP Phone 7960       n/a
Fa4/7     auto   on         6.3        6.3        IP Phone 7960       n/a
Fa4/8     auto   on         6.3        6.3        IP Phone 7960       n/a
Fa4/9     auto   off        0.0        0.0        n/a                 n/a
Fa4/10    auto   on         6.3        6.3        IP Phone 7960       n/a
Fa4/11    auto   off        0.0        0.0        n/a                 n/a
Fa4/12    auto   off        0.0        0.0        n/a                 n/a
Fa4/13    auto   off        0.0        0.0        n/a                 n/a
Fa4/14    auto   off        0.0        0.0        n/a                 n/a
Fa4/15    auto   off        0.0        0.0        n/a                 n/a
Fa4/16    auto   off        0.0        0.0        n/a                 n/a
Fa4/17    auto   on         6.3        6.3        IP Phone 7960       n/a
Fa4/18    auto   on         6.3        6.3        IP Phone 7960       n/a
Fa4/19    auto   off        0.0        0.0        n/a                 n/a
Fa4/20    auto   on         6.3        6.3        IP Phone 7960       n/a
Fa4/21    auto   on         6.3        6.3        IP Phone 7960       n/a
Fa4/22    auto   on         6.3        6.3        IP Phone 7960       n/a
Fa4/23    auto   on         6.3        6.3        IP Phone 7960       n/a
Fa4/24    auto   off        0.0        0.0        n/a                 n/a
Fa4/25    auto   on         6.3        6.3        IP Phone 7960       n/a
Fa4/26    auto   off        0.0        0.0        n/a                 n/a
Fa4/27    auto   on         6.3        6.3        IP Phone 7960       n/a
Fa4/28    auto   off        0.0        0.0        n/a                 n/a
Fa4/29    auto   off        0.0        0.0        n/a                 n/a
Fa4/30    auto   off        0.0        0.0        n/a                 n/a
Fa4/31    auto   off        0.0        0.0        n/a                 n/a
Fa4/32    auto   on         6.3        6.3        IP Phone 7960       n/a
Fa4/33    auto   on         6.3        6.3        IP Phone 7960       n/a
Fa4/34    auto   off        0.0        0.0        n/a                 n/a
Fa4/35    auto   off        0.0        0.0        n/a                 n/a
Fa4/36    auto   on         6.3        6.3        IP Phone 7960       n/a
Fa4/37    auto   off        0.0        0.0        n/a                 n/a
Fa4/38    auto   on         6.3        6.3        IP Phone 7960       n/a
Fa4/39    auto   off        0.0        0.0        n/a                 n/a
Fa4/40    auto   off        0.0        0.0        n/a                 n/a
Fa4/41    auto   off        0.0        0.0        n/a                 n/a
Fa4/42    auto   off        0.0        0.0        n/a                 n/a
Fa4/43    auto   off        0.0        0.0        n/a                 n/a
Fa4/44    auto   off        0.0        0.0        n/a                 n/a
Fa4/45    auto   on         6.3        6.3        IP Phone 7960       n/a
Fa4/46    auto   off        0.0        0.0        n/a                 n/a
Fa4/47    auto   off        0.0        0.0        n/a                 n/a
Fa4/48    auto   on         6.3        6.3        IP Phone 7960       n/a
Fa5/1     auto   off        0.0        0.0        n/a                 n/a
Fa5/2     auto   off        0.0        0.0        n/a                 n/a
Fa5/3     auto   off        0.0        0.0        n/a                 n/a
Fa5/4     auto   off        0.0        0.0        n/a                 n/a
Fa5/5     auto   off        0.0        0.0        n/a                 n/a
Fa5/6     auto   off        0.0        0.0        n/a                 n/a
Fa5/7     auto   off        0.0        0.0        n/a                 n/a
Fa5/8     auto   off        0.0        0.0        n/a                 n/a
Fa5/9     auto   off        0.0        0.0        n/a                 n/a
Fa5/10    auto   off        0.0        0.0        n/a                 n/a
Fa5/11    auto   off        0.0        0.0        n/a                 n/a
Fa5/12    auto   off        0.0        0.0        n/a                 n/a
Fa5/13    auto   off        0.0        0.0        n/a                 n/a
Fa5/14    auto   off        0.0        0.0        n/a                 n/a
Fa5/15    auto   off        0.0        0.0        n/a                 n/a
Fa5/16    auto   off        0.0        0.0        n/a                 n/a
Fa5/17    auto   off        0.0        0.0        n/a                 n/a
Fa5/18    auto   off        0.0        0.0        n/a                 n/a
Fa5/19    auto   off        0.0        0.0        n/a                 n/a
Fa5/20    auto   off        0.0        0.0        n/a                 n/a
Fa5/21    auto   off        0.0        0.0        n/a                 n/a
Fa5/22    auto   off        0.0        0.0        n/a                 n/a
Fa5/23    auto   off        0.0        0.0        n/a                 n/a
Fa5/24    auto   off        0.0        0.0        n/a                 n/a
Fa5/25    auto   off        0.0        0.0        n/a                 n/a
Fa5/26    auto   off        0.0        0.0        n/a                 n/a
Fa5/27    auto   off        0.0        0.0        n/a                 n/a
Fa5/28    auto   off        0.0        0.0        n/a                 n/a
Fa5/29    auto   off        0.0        0.0        n/a                 n/a
Fa5/30    auto   on         6.3        6.3        IP Phone 7960       n/a
Fa5/31    auto   off        0.0        0.0        n/a                 n/a
Fa5/32    auto   off        0.0        0.0        n/a                 n/a
Fa5/33    auto   off        0.0        0.0        n/a                 n/a
Fa5/34    auto   off        0.0        0.0        n/a                 n/a
Fa5/35    auto   off        0.0        0.0        n/a                 n/a
Fa5/36    auto   off        0.0        0.0        n/a                 n/a
Fa5/37    auto   off        0.0        0.0        n/a                 n/a
Fa5/38    auto   off        0.0        0.0        n/a                 n/a
Fa5/39    auto   off        0.0        0.0        IP Conference Stati n/a
Fa5/40    auto   off        0.0        0.0        n/a                 n/a
Fa5/41    auto   on         6.3        6.3        IP Phone 7960       n/a
Fa5/42    auto   off        0.0        0.0        n/a                 n/a
Fa5/43    auto   off        0.0        0.0        n/a                 n/a
Fa5/44    auto   off        0.0        0.0        n/a                 n/a
Fa5/45    auto   off        0.0        0.0        n/a                 n/a
Fa5/46    auto   off        0.0        0.0        n/a                 n/a
Fa5/47    auto   off        0.0        0.0        n/a                 n/a
Fa5/48    auto   off        0.0        0.0        n/a                 n/a
--------- ------ ---------- ---------- ---------- ------------------- -----

and the port is configured as follows

interface FastEthernet4/4

switchport trunk encapsulation dot1q

switchport trunk native vlan 10

switchport mode trunk

switchport voice vlan 100

service-policy output autoqos-voip-policy

qos trust device cisco-phone

qos trust cos

auto qos voip cisco-phone

tx-queue 3

   priority high

   shape percent 33

power inline auto max 6000

spanning-tree portfast

end

[Leo Laohoo]

power inline auto max 6000

Gotcha.  This is the reason why.  1140 require 15.0 w of power.  Remove this line and see what happens.

Can your line cards support 15.0 w of power per port?

[Leo Laohoo]

Did it work?

[prema.params]

I removed the command "power inline auto max 6000" but it didn't work. Actually I added this command since there was no blinking light

[Scott Fella]

Does that port power on any other devices?

[prema.params]

Yes, The port power on with IP phones and 1242 Access points but not with 1141 APs

[Scott Fella]

Just to make sure.... the same port you have the 1141 connected also powers up a 1242, but the 1141 doesn't?  If so, then maybe that AP had a bad port.

[prema.params]

I have 3, 1141 APs. All the 3 are not powering up

[Scott Fella]

Well if you can power up a 1242 in the same port as the 1141 and the 1141 does not pwoer up, then you muist have a bad batch of AP's.

[Leo Laohoo]

Well if you can power up a 1242 in the same port as the 1141 and the 1141 does not pwoer up, then you muist have a bad batch of AP's.

PoE standard.  WAP 1240 and 79X0 phones support Cisco Pre-Standard while 1140 and newer support the "af" standard.

So look at Rob's link below to determine if your card does and does not support "af"?

But doesn't make any sense ...

One question:  When you say that the 1240 and the 76X0 phones are powered, WHAT PATCH CABLE ARE YOU USING?   Are you using the same patch cable or different patch cable?

Otherwise, like Scott said, you could be looking at a bad WAP.

[Rob Huffman]

Hi Prema,

Check out the tables in this good guide as it seems that the line card may not support

15.4w.

http://www.cisco.com/en/US/products/hw/switches/ps4324/products_white_paper09186a00801f44be.shtml

Cheers!

Rob

PS: +5 to both Scott and Leo for their great help here (as always )

[Leo Laohoo]

Thanks Rob.