[Asterisk-Users] D-LINK PoE switch, does it work with cisco or do I need to do the cable trick?

[Garry Taylor]

> -----Original Message-----
> From: asterisk-users-bounces at lists.digium.com 
> [mailto:asterisk-users-bounces at lists.digium.com] On Behalf Of 
> Daniel Chester
> Sent: Monday, 29 November 2004 2:28 PM
> To: Asterisk Users Mailing List - Non-Commercial Discussion
> Subject: [Asterisk-Users] D-LINK PoE switch, does it work 
> with cisco or do I need to do the cable trick?
> 
> 
> As an alternative to the "expensive" PoE switches out there, 
> I found the 
> D-Link Web Smart DES-1316 switch for just around $400.  Now, 
> the issue 
> is, it does 802.3af power and, as I've found out through previous 
> discussions, this original 76?0 series phones (the non G 
> variety) do not 
> use 802.3af.  So I'm assuming I just need to use the special 
> cable thing 
> as per http://www.voip-info.org/wiki-Cisco+POE and it will 
> work.  Is it 
> this simple to save myself $1000 over the next lowest price 
> PoE switch? 
It depends on whether the D-LINK injects the power into the "unused wires"
or whether it injects the power into the TX and RX pairs? Look at the UPDATE
at the bottom of the page you mentioned. 3com inject the power into the TX
and RX pairs, so if the end device is not fully 802.3af compliant in anyway
(like these Cisco phones), then to bad, or buy the 3com covertors first. -
http://www.3com.com/products/en_US/detail.jsp?tab=features&pathtype=purchase
&sku=3CNJVOIP-CPOD
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