[148903] in North American Network Operators' Group

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Re: LX sfp minimum range

daemon@ATHENA.MIT.EDU (Aftab Siddiqui)
Thu Jan 26 00:27:47 2012

In-Reply-To: <CAE_ug16Ksho==Y=bW6XG_W4hTj81KPjUqMG4nMKmP3BCbPH1OA@mail.gmail.com>
Date: Thu, 26 Jan 2012 10:27:17 +0500
From: Aftab Siddiqui <aftab.siddiqui@gmail.com>
To: Tim Durack <tdurack@gmail.com>
Cc: nanog@nanog.org
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org

Theoretically speaking Yes there should be an issue while using the LX SFP
for short range because it may damage the receiver part. But we've been
using it for quite a long time within datacenter for rack to rack switch
connectivity without harming the SFP or the performance.

Regards,

Aftab A. Siddiqui


On Thu, Jan 26, 2012 at 12:45 AM, Tim Durack <tdurack@gmail.com> wrote:

> On Wed, Jan 25, 2012 at 2:26 PM, jon Heise <jon@smugmug.com> wrote:
> > we are moving a router between 2 data centers and we only have LX sfp's
> for connection, is there any issue using LX sfp's in a short range
> deployment ?
>
> A Cisco 1000BASE-LX optic has the following spec:
>
>
> http://www.cisco.com/en/US/prod/collateral/modules/ps5455/ps6577/product_data_sheet0900aecd8033f885.html
>
> -3dBm maximum transmit power, -3dBm maximum receive. That means you
> can run it over any length. (We use LX for everything.)
>
> --
> Tim:>
>
>

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