What is this Prysmian device on telegraph pole

Turtletom · Mar 13, 2019

Hi I have come home and at the bottom of my drive way have noticed this thing bolted about 7ft up the telegraph pole with a laser/laser radiation warning sticker on it.

Anyone know what this is and what it does or what all the numbers mean?

http://Upload the image directly to the thread.com/JhozEQL

http://Upload the image directly to the thread.com/sDIfSqG

PEG · Mar 14, 2019

Strima said:
BT copper pairs are horrible to work with, they're packed with grease. stuff gets everywhere...

It gets all over horses hooves,now...⁰

snowhead · Mar 14, 2019

dmxtothemax said:
But you have to account for all types of idiots !

And Sharks

[ElectriciansForums.net] What is this Prysmian device on telegraph pole

snowhead · Mar 14, 2019

dmxtothemax said:
But you have to account for all types of idiots !

And Sharks

Turtletom · Mar 14, 2019

Thanks guys, it is safe to say it is for fibre optics when i left this morning they are working up the road with a big spool of black cabling and under the paths.

I did think it was a bit low down but maybe it is temporary who knows

SparkyChick · Mar 14, 2019

dmxtothemax said:
For sure it's a fibre optic repeater / booster,
The radiation warning is for the laser diode.
But unless your looking down the fibre when it's on,
Then their is no problems.
But you have to account for all types of idiots !

Hate to disagree, but I don't believe it's a repeater... reasoning... only two 'cables' entering (if it was a repeater I would expect to see a third - the power supply), plus there is no warning about the presence of potentially hazardous voltages you might expect if there was a power supply present in there. Plus I don't believe Prysmian make repeaters.

The laser radiation warning is required as if you bend a fibre beyond it's minimum bend radius there is a good chance the reflection fibres require to work will break down (the angle of incidence will be too great) allowing laser radiation to be emitted from the sides of the fibre, whilst not as potent as looking down the end of a fibre, it is still strong enough to cause permanent retinal damage.