On 2/7/23 14:27, Ben McKeegan wrote:
I'd add to this 'be conservative', unless you want your engineers out fixing stuff every time there is extreme weather. Fibre can move around a bit after installation, e.g. when the fibre and sub-duct in which it is installed have different coefficients of thermal expansion, or simply because it gets knocked about by other installers, customers, etc. You can easily loose a few dB here and there because some bend or spool ends up under additional tension or a fibre is kinked slightly.
GPON optical values would have me up all night in even an extreme DWDM network :-).
Last time I had my GPON provider check, I was knocking on 23dB to my house. How the thing is able to function, I will always wonder, hehe.
Mark.
