[160596] in North American Network Operators' Group
Re: Muni fiber: L1 or L2?
daemon@ATHENA.MIT.EDU (Masataka Ohta)
Fri Feb 8 19:00:08 2013
Date: Sat, 09 Feb 2013 08:58:41 +0900
From: Masataka Ohta <mohta@necom830.hpcl.titech.ac.jp>
To: nanog@nanog.org
In-Reply-To: <CAGbD49pRMHAUyNY6w0XrE-NQ5C1VRRVmQYqLKPDr8Jas2kGZYg@mail.gmail.com>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
Jason Baugher wrote:
> In a greenfield build, cost difference for plant between PON and active
> will be negligible for field-based splitters, non-existent for CO-based
> splitters.
If you choose to have CO-based splitters, you need to have MDF
for L1 unbundling, and 1:8 (or 1:4, 1:32 or whatever) optical
splitter module for PON, combination of which requires more
CO space and money than SS (single star) optical equipment (just
MDF).
> On the CO-side electronics, however... I think it's safe to say that you
> can do GPON under $100/port.
Never ignore space and cost of optical splitters required only
for PON.
Note that the splitters cost even if they are located in field.
Masataka Ohta
