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From: "Carlos E.R." <robin_listas@es.invalid>
Newsgroups: sci.electronics.design
Subject: Re: Grand Apagon - Electricity (not) in Spain
Date: Tue, 6 May 2025 18:56:42 +0200
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On 2025-05-06 14:27, Martin Brown wrote:
> On 06/05/2025 11:26, Carlos E.R. wrote:
>> On 2025-05-06 11:25, Martin Brown wrote:
>>
>>> Amazingly fibre to premises can still work OK in a power cut since 
>>> that is actually powered off the reserve supply back at the main 
>>> exchange.
>>> Advantages of having a UPS at home.
>>
>> Here there are boxes on the walls of the city blocks, where one fibre 
>> from the exchange is divided into half a dozen (exact number unknown 
>> to me). I don't know if these boxes are passive or active.
>>
>> <https://www.google.com/imgres? 
>> q=cajas%20de%20reparto%20de%20fibra%20telefonica&imgurl=https%3A%2F%2Fcomunidad.movistar.es%2Ft5%2Fimage%2Fserverpage%2Fimage-id%2F111764iC1F6FAD7948695D6%3Fv%3Dv2&imgrefurl=https%3A%2F%2Fcomunidad.movistar.es%2Ft5%2FSoporte-Fibra-y-ADSL%2FINSTALACION-CAJA-DISTRIBUIDORA-DE-FIBRA-EN-EXTERIOR-DEL-EDIFICIO%2Ftd-p%2F2929655&docid=zZHuHCpt8An46M&tbnid=0T2mKKO1TLeZFM&vet=12ahUKEwiN9onmz46NAxXYVqQEHYnHDk4QM3oECHMQAA..i&w=914&h=611&hcb=2&ved=2ahUKEwiN9onmz46NAxXYVqQEHYnHDk4QM3oECHMQAA>
>>
>> <https://www.change.org/p/movistar-cambien-cto-caja-donde-se-conecta- 
>> la-fibra-optica-para-poder-realizar-mis-estudios>
> 
> Your splitter boxes look to me like they might be powered.

They do, but then I found an article that describes the system and it is 
optical, passive. GPON.

....

-- 
Cheers, Carlos.