There are two primary types of fibre. Multimode fibre is very common for short distances and has a core diameter of from 50 to 100 microns. For intercity cabling and highest speed, singlemode fibre with a core diameter of less than 10 microns is used.

There exists a need for conversion between the types of fibre and between fibre and conventional copper cable, e.g. coaxial and twisted pair.

Data transmission techniques can allow up to 64 Terabit/s ( 64,000,000,000,000 Bit/s) in core fibre networks. At the access level, up to 622Mbit/s will do for now.

View our Fibre Glossary for an introduction to Fibre.

Fibre on Campus - E1 G.703 (2Mbit/s)
Single- or multimode fibre point-to-point on a large site connecting buildings at 2Mbit /s G703
Datasheet

Fibre Mode Conversion - up to 155Mbit/s
Multimode on User premises normally needs conversion to Singlemode Fibre from the Service Provider, at up to 155Mbit/s
Datasheet

Fibre Service Provision - STM-1/OC-3 at 155Mbit/s
The Singlemode or Multimode fibre delivery conversion to coaxial copper(BNC) connector at 155Mbit/s
Datasheet

Fibre Service Extension
Multimode on-site fibre to BNC conversion for a BNC-delivered 155Mbit/s service.
Datasheet

Fibre Access at higher speeds - up to 622Mbit/s
Datasheet