Technical Information

Fibre-optic cable types connectors:


Copper cabling:

Unshielded Twisted Pair (UTP) The UTP cable consists of pairs of wires twisted together. This is one of the most basic methods used to help prevent electromagnetic interference.
Shielded Twisted or Foiled Twisted Pair (STP/FTP) STP and FTP offer an additional layer of protection with shielding (also called screening) wrapped around the individual twisted wires. This protects against EMI/FRI and crosstalk.
Shielded/ Screened or Foiled Unshielded Twisted Pair (S/UTP & F/UTP) This has an overall foil or braid screen encasing the 4 pairs of unshielded twisted pairs.
Shielded and Foiled Twisted Pair (SFTP) A combination of the two above, with foil shielding around the individual twisted wires and an overall screen which can sometimes be a flexible braid.This provides the maximum level of protection from interference and is found in the highest performance cables.



Calculating Optical Loss Budgets - Multi mode:

[ switch to Single mode calculator » ]



[ Fluke Networks prepared this document to aid in calculating optical loss budgets. It is offered as a general guide. Suitability for any intended use is the responsibility of the user. it has been replicated here in line with Fluke Networks permission guidelines. ]
Enter the acceptable mated connector loss dB
Enter the acceptable splice loss dB
Enter the fiber loss per km @ 850 nm dB
Enter the fiber loss per km @ 1300 nm dB
Enter the number of mated connectors  
Enter the number of splices  
Enter the length of the fiber link m
     
Acceptable loss @ 850 nm dB
Acceptable loss @ 1300 nm dB

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