[Asterisk-biz] Ault Power Injectors - PW130

[Ted Gibson]

The older Cisco phones when first plugged in bridge the TX pair to the
receive until they get power.

The Cisco PWR switches send out a signal on the TX pair if it comes back to
them on the receive pair they then power up the port. So the only to get
power to a older Cisco phone is always power them with a injector which you
can buy for about $8-10 each  or use a patch panel injector for about $500
for 24 ports or buy a used Cisco 3500 switches which sell for about $100 for
24 port and 1800 for 48 port.

Ted Gibson



-----Original Message-----
From: asterisk-biz-bounces at lists.digium.com
[mailto:asterisk-biz-bounces at lists.digium.com]On Behalf Of Adi Linden
Sent: Thursday, October 27, 2005 8:40 AM
To: asterisk-biz at lists.digium.com
Subject: [Asterisk-biz] Ault Power Injectors - PW130


Just came across these "PW130 - Ault Power Injectors Comply with IEEE
802.3af for Single-Port Power-over-Ethernet LAN. Will these work with
legacy Cisco gear such as 7905G or 7940G? I have an inexpensive Linksys
switch that provides 802.3af power and it will not work with Cisco even
with that "special" crossover cable.
_______________________________________________
Asterisk-Biz mailing list
Asterisk-Biz at lists.digium.com
http://lists.digium.com/mailman/listinfo/asterisk-biz



--
No virus found in this incoming message.
Checked by AVG Free Edition.
Version: 7.1.361 / Virus Database: 267.12.5/149 - Release Date: 10/25/2005