[cisco-voip] 802.3af support in 7940 IP Phone

[Matt Slaga (US)]

Also to note, if you use the later Cisco switches (except for a select
few that only support the 802.3af standard) they will auto-negotiate
power for both Cisco inline and PoE.

-----Original Message-----
From: cisco-voip-bounces at puck.nether.net
[mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of Jim McBurnett
Sent: Wednesday, July 04, 2007 10:42 PM
To: May, Simon; cisco-voip at puck.nether.net
Subject: Re: [cisco-voip] 802.3af support in 7940 IP Phone

Simon,
7940,7960,7905,7912,7902,7910  all use legacy Cisco inline power.

7911,7906,7941,7961,7970,7971 use 802.3af..

Look here:
http://www.cisco.com/warp/public/765/tools/quickreference/ipphones.pdf

Later,
jim
-----Original Message-----
From: May, Simon [mailto:Simon.May at ihs.com] 
Sent: Wednesday, July 04, 2007 4:37 AM
To: cisco-voip at puck.nether.net
Cc: zohaibshabir at gmail.com; Jim McBurnett
Subject: Re: 802.3af support in 7940 IP Phone

I'm confused, I have 7940's, 7960's, 7941's & 7961's all using POE.

This is from Cisco ..

*      The preferred method for powering Cisco IP Phones is through
Power over Ethernet (POE). There are two variants of POE: Cisco Inline
Power and the IEEE 802.3af standard. All Cisco IP Phones support the
Cisco Inline Power variant, and the 7970G model offers both Cisco Inline
Power and 802.3af support. .
 
*      If POE is not available, or the customer chooses to power the
phones via an AC power adapter, the preferred network configuration is
Cisco Catalyst Switches that have been configured for automatic loop
detection and recovery. For more information, see Table 1 and
Configuration Guidelines.
 
*      Cisco does not support the use of Cisco IP Phones with unmanaged,
non-enterprise class switches that cannot automatically detect a loop
condition and recover from the effect of loop back traffic. Follow the
Configuration Guidelines section for specific recommendations.

Simon

------------------------------------------------
Message: 3
Date: Tue, 3 Jul 2007 22:25:53 -0400
From: "Jim McBurnett" <jim at tgasolutions.com>
Subject: Re: [cisco-voip] 802.3af support in 7940 IP Phone
To: "zohaib shabir" <zohaibshabir at gmail.com>,
	<cisco-voip at puck.nether.net>,
<cisco-voip-request at puck.nether.net>
Message-ID:
	
<D2BBAE709B4D874DAC556C7EB9D938FC347805 at exchange.TGASolutions.local>
Content-Type: text/plain; charset="us-ascii"

Does not support .af-the 7941 will..

Jim

 

From: cisco-voip-bounces at puck.nether.net
[mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of zohaib shabir
Sent: Tuesday, July 03, 2007 11:48 AM
To: cisco-voip at puck.nether.net; cisco-voip-request at puck.nether.net
Subject: [cisco-voip] 802.3af support in 7940 IP Phone

 

Dear All,
Can any one know that IP Phone 7960 support IEEE 802.3af. If yes please
specify what firmware it requires 

-- 
Regards,
Zohaib Shabir
Network Engineer(Voice)
DWP Group, TECH Division 
Ph:+92-302-8232689 

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