[asterisk-users] Cisco power injector with GXP2000 phones

[Salvatore Giudice]

The electricity is carried on different pins in a cisco poe injector. Just
because they both support the same standard doesn't mean they were
implemented the same.

 

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Salvatore Giudice
Salvatore.Giudice at VoIPSecurityTraining.com

VoIP Security Training, LLC
http://VoIPSecurityTraining.com

848 N. Rainbow Blvd. #1676
Las Vegas, NV 89107
Phone: (617) 959-7625
Fax: (214) 279-2906

 

From: asterisk-users-bounces at lists.digium.com
[mailto:asterisk-users-bounces at lists.digium.com] On Behalf Of Ricardo
Carvalho
Sent: Thursday, December 06, 2007 10:19 AM
To: Asterisk Users Mailing List - Non-Commercial Discussion
Subject: [asterisk-users] Cisco power injector with GXP2000 phones

 

I've tried to use a Cisco power injector to supply power over Ethernet to a
GXP2000 phone without success. Although when I plugged these phone to a PoE
capable Cisco Switch it worked without a problem!

Knowing that all these three equipments implement IEEE 802.3af protocol, why
doesn't it work with the Cisco power injector? Anyone also had this problem
before?

Thanks,
Ricardo Carvalho.

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