[c-nsp] 1000BASE-BX

[Florian Lohoff]

On Wed, Sep 26, 2012 at 05:03:12PM -0400, Tim Durack wrote:
> 1000BASE-BX-U connects to 1000BASE-BX-D, no problem there.
> 
> Is there a general standard for installation, like 1000BASE-BX-U is
> installed in the Upstream equipment, 1000BASE-BX-D is installed in the
> Downstream equipment?
> 
> That would make sense, but I'd rather not find out I'm deploying these
> the opposite way around than most people...

Habe a look at G.983.1 "Broadband optical access systems based on
Passive Optical Networks (PON)"

Its not exactly describing point to point FTTH but for other access
protocols.

For 1.25GBit/s and single fiber "Diplex" it defines the Downstream
optical Window as 1480-1500 - See Page 23.

The following pages define a Window of 1260-1360 for the Upstream
direction.

This matches GPON which uses 1490 for Downstream and 1310 for Upstream.

Flo
-- 
Florian Lohoff                                                 f at zz.de
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