I did a simple thing at one site. I took a 48V DC power output and put it to spare wires in the utp. Cisco Inline and af negotiate power diff, but use the same pairs of wires. And I had all those phones up and running. Not a very prety solution but it worked.
<br><br><div><span class="gmail_quote">2007/7/4, Kelemen Zoltan <<a href="mailto:keli@carocomp.ro">keli@carocomp.ro</a>>:</span><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
7940's & 7960's won't work on 802.3af POE (non-Cisco switches, mostly),<br>while 7941 & 7961 will work with both types of POE (Cisco AND standard).<br><br>As far as I know, basically every new-generation Cisco Phone (7906,
<br>7941, 7961, 7936 etc.) is POE standards-compliant, while old phones<br>(7905, 7940, 7960 and so on) work only with Cisco POE switches.<br><br>Since POE is something really hardware related, I doubt a firmware<br>upgrade could change this.
<br><br>regards,<br> Zoltan<br><br>May, Simon wrote:<br>> I'm confused, I have 7940's, 7960's, 7941's & 7961's all using POE.<br>><br>> This is from Cisco ..<br>><br>> * The preferred method for powering Cisco IP Phones is through
<br>> Power over Ethernet (POE). There are two variants of POE: Cisco Inline<br>> Power and the IEEE 802.3af standard. All Cisco IP Phones support the<br>> Cisco Inline Power variant, and the 7970G model offers both Cisco Inline
<br>> Power and 802.3af support. .<br>><br>> * If POE is not available, or the customer chooses to power the<br>> phones via an AC power adapter, the preferred network configuration is<br>> Cisco Catalyst Switches that have been configured for automatic loop
<br>> detection and recovery. For more information, see Table 1 and<br>> Configuration Guidelines.<br>><br>> * Cisco does not support the use of Cisco IP Phones with unmanaged,<br>> non-enterprise class switches that cannot automatically detect a loop
<br>> condition and recover from the effect of loop back traffic. Follow the<br>> Configuration Guidelines section for specific recommendations.<br>><br>> Simon<br>><br>> ------------------------------------------------
<br>> Message: 3<br>> Date: Tue, 3 Jul 2007 22:25:53 -0400<br>> From: "Jim McBurnett" <<a href="mailto:jim@tgasolutions.com">jim@tgasolutions.com</a>><br>> Subject: Re: [cisco-voip] 802.3af support in 7940 IP Phone
<br>> To: "zohaib shabir" <<a href="mailto:zohaibshabir@gmail.com">zohaibshabir@gmail.com</a>>,<br>> <<a href="mailto:cisco-voip@puck.nether.net">cisco-voip@puck.nether.net</a>>,<br>> <
<a href="mailto:cisco-voip-request@puck.nether.net">cisco-voip-request@puck.nether.net</a>><br>> Message-ID:<br>><br>> <<a href="mailto:D2BBAE709B4D874DAC556C7EB9D938FC347805@exchange.TGASolutions.local">D2BBAE709B4D874DAC556C7EB9D938FC347805@exchange.TGASolutions.local
</a>><br>> Content-Type: text/plain; charset="us-ascii"<br>><br>> Does not support .af-the 7941 will..<br>><br>> Jim<br>><br>><br>><br>> From: <a href="mailto:cisco-voip-bounces@puck.nether.net">
cisco-voip-bounces@puck.nether.net</a><br>> [mailto:<a href="mailto:cisco-voip-bounces@puck.nether.net">cisco-voip-bounces@puck.nether.net</a>] On Behalf Of zohaib shabir<br>> Sent: Tuesday, July 03, 2007 11:48 AM<br>
> To: <a href="mailto:cisco-voip@puck.nether.net">cisco-voip@puck.nether.net</a>; <a href="mailto:cisco-voip-request@puck.nether.net">cisco-voip-request@puck.nether.net</a><br>> Subject: [cisco-voip] 802.3af support in 7940 IP Phone
<br>><br>><br>><br>> Dear All,<br>> Can any one know that IP Phone 7960 support IEEE 802.3af. If yes please<br>> specify what firmware it requires<br>><br>><br><br>_______________________________________________
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</a><br></blockquote></div><br><br clear="all"><br>-- <br>Regards, | С Уважением,<br>Daniel A. Abelski | Абельский Даниил Александрович