CSP, ONT, and router in garage?

We are looking at upgrading another of our properties to FTTP, at present there is a master socket in the garage which feeds the phone to a 'granny annex' and the main house (although not used or needed in main house).
We want phone in 'granny annex', and internet in main house and garden cabin, gf is not keen on having the CSP on outside wall.
My thoughts are the CSP, ONT, and router can be mounted where the master socket presently resides in the garage, and then the phone line can be plugged into the router, and I can easily route cat5/6 cables into main house and garden cabin to wireless access points (repurposed Fast F5364's which I have lying around). The garage whilst unheated has always been dry with no signs of condensation, and has electric for ONT and router.
Does this sound sensible?

The only hiccup might be that the CSP on an exterior wall provides an external test point, otherwise any future faulting visit will require an appointment.

Any visit to access the CSP would require an appointment even if it was on a outside wall as it would still be behind locked gates, so I'm not to worried about that.

Edited by burble (Sun 24-Aug-25 20:53:52)

In reply to a post by burble:

Any visit to access the ONT would require an appointment even if it was on a outside wall as it would still be behind locked gates, so I'm not to worried about that.

Fill yer boots then.

In reply to a post by Zarjaz:

The only hiccup might be that the CSP on an exterior wall provides an external test point, otherwise any future faulting visit will require an appointment.

How does a visiting engineer make a measurement at the CSP when in my case it simply has the external and internal fibres spliced together inside it?

Any measurement would need the light level to be measured either at the CBT just a few metres up the road or at the connector currently plugged into the ONT.

Is there something else that can be done in the CSP?

How does a visiting engineer make a measurement at the CSP when in my case it simply has the external and internal fibres spliced together inside it?

You break down the splice, splice a new tail on, and make your measurement.

In reply to a post by Zarjaz:

How does a visiting engineer make a measurement at the CSP when in my case it simply has the external and internal fibres spliced together inside it?

You break down the splice, splice a new tail on, and make your measurement.

Oh I see, presumably after determining that there's no light at the end of the internal fibre.

Oh I see, presumably after determining that there's no light at the end of the internal fibre.

That would depend on what the fault report was, and what remote testing showed. Also, it’s not just no light, it is readings outside of the thresholds you are looking for.

In reply to a post by Zarjaz:

it’s not just no light, it is readings outside of the thresholds you are looking for.

What are those thresholds?

In reply to a post by Zarjaz:

Oh I see, presumably after determining that there's no light at the end of the internal fibre.

That would depend on what the fault report was, and what remote testing showed. Also, it’s not just no light, it is readings outside of the thresholds you are looking for.

Yes, fair enough, although once the splice is done on installation it makes me wonder what could happen beyond mechanical damage to the splice or the internal cable and connector.

Our installation was carefully checked several times and the splicing machine showed a loss of 0.01dB then the internal connector output level was well towards the top end of the allowed range.