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Date:      Wed, 15 Jul 2009 17:38:33 -0400
From:      mikel.king@olivent.com
To:        "David Kelly" <dkelly@hiwaay.net>, "Michelle Konzack"  <bsd4michelle@tamay-dogan.net>
Cc:        freebsd-questions@freebsd.org
Subject:   Re: 5000' ethernet?
Message-ID:  <4884-SnapperMsgFC8D8BD2C683FCD7@[68.246.187.247]>
In-Reply-To: <20090715210752.GE16489@Grumpy.DynDNS.org>
References:  <20090715194718.GA16401@Grumpy.DynDNS.org>

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	<20090715202734.GH29667@tamay-dogan.net> <20090715210752.GE16489@Grumpy.DynDNS.org>
From: Mikel <mikel.king@olivent.com>
Date: Wed, 15 Jul 2009 17:38:21 -0400
Content-type: text/plain; charset=US-ASCII
Content-transfer-encoding: 7bit

David,

 
You can run upto 1.5 miles on a lx fiber based solution but will likely 
require a skilled installer to setup that much cable for you.

Depending on your locale I am may be able to put connect you to a supplier.

Have you considered a wireless direct beam solution?  Especially 
considering the 'temporary' nature of this install.

___
Cheers,
Mikel King
CEO, Olivent Technologies

follow-me http://twitter.com/mikelking

...... Original Message .......
On Wed, 15 Jul 2009 16:07:52 -0500 "David Kelly" <dkelly@hiwaay.net> wrote:
>On Wed, Jul 15, 2009 at 10:27:35PM +0200, Michelle Konzack wrote:
>> Hello David,
>> 
>> Am 2009-07-15 14:47:18, schrieb David Kelly:
>> > Not directly FreeBSD related, but how much of a chance is there that 
two
>> > machines could communicate directly over 5,000 feet of cat5 with no
>> > special hardware?
>> 
>> I do not know hoe much a feet is in meters but AFAIK arround 0,3 which
>> mean, you are talking about 1.5km or 1 mile ?
>
>Yes, roughly a mile which is 5280 feet. Maybe less, but no more than a
>mile. Won't really know until I get there and start running cable.
>
>> There are inexpensive FiberOptic Transponder (I am using a bunch  of
>> it from Transmode for my CWDM 1GE and DWDM 10GE network)
>> 
>> The 100 Mbit Transponder cost  arround  600 Euro  (each)  and  for
>> your 5000 feets you need only  an  inexpensive  FiberOptic  cable.
>> EVEN  the cheapes one would transfer 1 Gbit at this distance.
>
>What I'm not (yet) seeing is a fiber optic transceiver listed with
>matching fiber optic cable. The transceivers seem inexpensive vs the cost
>of the cable.
>
>> > Are there any particular range extenders you have used and would
>> > recommend for making this task a sure thing on the first try?
>> > Perhaps I should put an inexpensive ethernet switch at each junction
>> > to serve as a regenerative repeater?
>> 
>> You have to use at least 3 Repeaters which NEED electricity. Do you
>> know this?
>
>Yes, of course.
>
>> 5000 feet CAT5, 3 Repeater plus electric installation  cost  more,
>> then the FiberOptic Cable with two Transponder.  And of course,  no
>> one  can sniff traffic on FiberOptic and you have no worry about
>> magnetic  fields disturbing your 5000 feet...
>
>No one is going to sniff *this* one.
>
>Am not finding sources of fiber optic cable as easily as I can find
>fiber optic transceivers.
>
>100baseT ethernet switches are about $25 each if one will serve as a
>regenerative repeater.
>
>Did I mention this is a temporary installation?
>
>-- 
>David Kelly N4HHE, dkelly@HiWAAY.net
>========================================================================
>Whom computers would destroy, they must first drive mad.
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