Kitz ADSL Broadband Information
adsl spacer  
Support this site
Home Broadband ISPs Tech Routers Wiki Forum
 
     
   Compare ISP   Rate your ISP
   Glossary   Glossary
 
Please login or register.

Login with username, password and session length
Advanced search  

News:

Author Topic: Fibre slack on pole?  (Read 623 times)

craigski

  • Reg Member
  • ***
  • Posts: 294
Fibre slack on pole?
« on: January 24, 2022, 08:31:10 AM »

I walked around village at weekend, and noticed a few of the poles with fibre seem to have some an additional bobbin type device that seems to be used to store some 'slack' in fibre. I couldn't work out why only some of the poles have this device? An example below.
Logged

craigski

  • Reg Member
  • ***
  • Posts: 294
Re: Fibre slack on pole?
« Reply #1 on: January 24, 2022, 08:46:53 AM »

I found this (bottom of page 17), says its an ELM, and brief description, but I'm still curious why/when its used, as only on some of the poles near me.

https://www.millsltd.com/media/mills_physical_infrastructure_access_pia_equipment_catalogue.pdf
Logged

Weaver

  • Senior Kitizen
  • ******
  • Posts: 11459
  • Retd s/w dev; A&A; 4x7km ADSL2 lines; Firebrick
Re: Fibre slack on pole?
« Reply #2 on: January 24, 2022, 09:53:11 AM »

Is that lit fibre? If so, what is the limit on radius of curvature?
Logged

craigski

  • Reg Member
  • ***
  • Posts: 294
Re: Fibre slack on pole?
« Reply #3 on: January 24, 2022, 10:14:10 AM »

Yes, its fibre. I have found out its a Fibre Locking Mechanism FLM (not ELM), and I would assume any radius is within spec of cable.

https://www.comtecdirect.co.uk/product/opt-fibre-locking-mechanism-for-ultra-lightweight-overhead-cables/PG6518/820214

"The FLM provides an effective solution that isolates the termination of the fibres, either spliced or connectorised, in the fibre enclosure from the 'in span' environmental loading (ice and winding)"

Logged
 

anything