[156969] in North American Network Operators' Group
Re: Cost of fiber run between neighbouring office buildings
daemon@ATHENA.MIT.EDU (Nick Hilliard)
Tue Oct 2 09:02:09 2012
X-Envelope-To: nanog@nanog.org
Date: Tue, 02 Oct 2012 14:01:37 +0100
From: Nick Hilliard <nick@foobar.org>
To: Hank Disuko <gourmetcisco@hotmail.com>
In-Reply-To: <BLU156-W63EEDECDE76C72A12225CBC9860@phx.gbl>
Cc: NANOG <nanog@nanog.org>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
On 02/10/2012 13:35, Hank Disuko wrote:
> - 2 x 6-Strand 50/125u multimode, Tight Buffered, Armoured, Laser Ultra-Fox Fiber cables
> - Distance of run is approx 520 meters
For that length, go with single-mode. 10G-LR will happily run on 10km of
SMF, but 10G-SR flakes out at ~300m even on OM3. Laying outdoor MMF plant
like this is totally pointless. Using MMF for anything outside your
cabinet / small cage is creating a legacy deployment on day 1 which will
bite you in future years.
To answer the question you asked: if the ducts are already in place and
you're just pulling fibre through, you should have a breakdown in terms of
# of terminations + the manpower required to handle the pull + cable
finishing. I.e. it shouldn't be very much. If you need ducting laid or if
your existing ducting is in poor shape, that's a different issue.
Nick
