Re: IP cameras on ring topology, not star

[Pat Coghlan <info@xxxxxxxxxx>]

The main problem with token ring - as I said - is that most gear (MAUs
etc.) still require devices to be plugged in to a common switch/panel.

They operate as a ring, but use a star-type wiring topology, which
doesn't work in this application.

Matt Ion wrote:
> I dunno... from this guy's idea of token-ring, I'd expect him to start
> stuffing the cameras with bran flakes on this suggestion...
>
>
> Bob La Londe wrote:
>> I agree with John.  Use fiber.
>>
>>
>> "J. Sloud" <jsloud@xxxxxxxxxxxxxxxxxxxxxxxxxxx> wrote in message
>> news:cqr252dkeivulnma7mcqbb1uo145uvq2fs@xxxxxxxxxx
>>
>>> On Thu, 27 Apr 2006 09:13:15 -0400, Pat Coghlan <info@xxxxxxxxxx>
>>> wrote:
>>>
>>>
>>>> I'm looking for information on equipment that can/should be used to
>>>> install IP video cameras on poles around a perimeter (1-2 km, or more).
>>>>
>>>> Token-ring routers typically require all drops to be plugged into a
>>>> panel (operates in token ring fashion, but physically is a star), which
>>>> is not practical with 100 cameras running around a ring, feeding
>>>> traffic
>>>> back to recorders.
>>>>
>>>> The equipment needs to be economical (hub on each pole).
>>>>
>>>> Any suggestions or real-world examples out there?
>>>>
>>>> Thanks.
>>>
>>> Without a lot more application detail, it's hard to offer specific
>>> advise.  You can use a network of switches where each switch adds a
>>> camera to the network and then loops to the next pole thus forming a
>>> ring.  This isn't a Token Ring network.
>>>
>>> The applications we've done that sort of sound like what you've done
>>> have used either wireless ethernet (SmartSight for the small systems
>>> and Marconi for the larger ones) or we've pulled fiber and used analog
>>> cameras.
>>> --
>>> NewsGuy.Com 30Gb $9.95 Carry Forward and On Demand Bandwidth
>>
>>
>>
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>
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--

-Pat