[Asterisk-Users] Power Over Ethernet for *any* ethernet switch (or hub); product idea

[daryl at introspect.net]

> -----Original Message-----
> From: asterisk-users-admin at lists.digium.com 
> [mailto:asterisk-users-admin at lists.digium.com] On Behalf Of Ken Alker
> Sent: Tuesday, January 20, 2004 3:59 AM
> To: asterisk-users at lists.digium.com
> Subject: [Asterisk-Users] Power Over Ethernet for *any* 
> ethernet switch (or hub); product idea
> 
> 
[...]
> Assume I have a non-POE switch with 24 RJ-45 (ethernet) 
> ports.  I design a 
> 1U box that can be mounted just above/below the non-POE 
> switch, call it a 
> "POEI" (POE inserter).  This box has 48 RJ-45 ports, 24 
[...]
> Are POE switches expensive enough to warrant manufacturing 
> above? If not, is there a case for not having to swap out all 
> of ones existing 
> switches?
[...]
Depends on what "expensive" means, and whether your switces are due for
replacemtn or not.  And what you intended to replace them with not
counting PoE.  The difference between Catalyst 2950-XL-24s and
3524-PRW-XL's is about $300.

The difference on a large Catalyst switch is about $5-10/port if I
recall correctly from my last deployment.

> Does something like this already exist for cheap?
Yes.  Several.

> If so, is it any good?
Yes.  Many work just fine.

> If so, does it need more features?
To do what?  It's called a mid-span power injector.  The ones I've seen
do that and nothing else.  I'd say they are living up to their task.

> If not, would you buy something like this?
> If so, what features have I missed?
> If so, what is it worth?
Google the rest of your answers.  You're about 6 years too late to catch
the first run of this train.

Daryl G. Jurbala
BMPC Network Operations
Tel (NY): +1 917 477 0468 x235
Tel (MI): +1 616 608 0004 x235
Tel (UK): +44 208 792 6813 x235
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