[Asterisk-Users] phones with two ethernet ports

[Michael Graves]

On Tue, 04 Jan 2005 14:30:43 +1100, Howard Lowndes wrote:

>On Tue, 2005-01-04 at 10:08, Race Vanderdecken wrote:
>> Each 4-pair wire has 8 wires in the "blue wrapper" cable.
>> 
>> You only need 2 pairs, 4 of the wires, for 100MB Ethernet.
>> 
>> You could split the wire at the wall jack and at the switch end where it
>> goes through the punch down thingy (the name escapes me at the moment.)
>> 
>> You only need to run 1 blue/4 pair wire cable to each desk. You could
>> put a small hub on each desk to split our more sockets.
>> 
>> For the life of me I will never understand why people believe that each
>> cubical/desk needs it own 4-pair cable, CAT5 cable connect back to the
>> server.
>
>There are limits to this idea of hubs, in that you can only cascade so
>many.  If I remember rightly it's called the 5,4,3,2,1 rule.
>
>5 segments, 4 hubs, 3 populated, 2 unpopulated, make 1 network.  No
>doubt someone will correct me if I am wrong :)

I like the 3COM four port managed switches that fit into the outlet box
in the wall. Handles QoS, POE & a POTS line if necessary. Keeps your
LAN up if the SIP phone dies.

Michael

--
Michael Graves                           mgraves at pixelpower.com
Sr. Product Specialist                          www.pixelpower.com
Pixel Power Inc.                                 mgraves at mstvp.com

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