> Partners > Cablefree
Solutions is a dynamic new company formed to create free-space
optical broadband wireless communications systems for the 21st
century. The focus of the company is primarily on technology for
connecting high-speed digital data networks through the atmosphere
using point-to-point infra-red light beams.
The huge benefits of free-space optical technology include
immense bandwidths previously obtainable only over fibre-optic
cable, genuine ‘cable-free’ point-to-point connection and freedom
from stringent radio licensing regulations.
systems are quick to install, reliable,
safe and future-proof with low running costs. Data networks which
are separated by a clear line-of-sight path over 4 kilometres can be
connected with an installation that typically takes 2-3 hours,
overcoming traditional limitations of cable, fibre-optic, microwave,
or leased-line systems.
A close analysis of market demand has led to a versatile
communications system capable of connecting not only data and
telecommunications networks, but also relaying single or multiple
channels of CCTV security images, transmitting analogue or digital
broadcast television pictures, and is suited to both permanent and
Some typical application scenarios for Cablefree are:
office blocks, each with corporate data networks (e.g. Ethernet,
Token Ring, ATM) which need to be connected. The ground between
premises is either public property or cannot be excavated.
Conventional leased-lines (e.g. BT Megastream) are expensive or
lack high-speed (>100 Mbps) performance.
installing telecommunications in developing countries typically
involves terrestrial microwave links between cities but licensing,
interference and reflections from buildings prohibit the use of
microwave to connect the central city telephone exchange(s) to the
nearest microwave tower. Digging up the city streets to install
cables is expensive, slow and causes disruption.
companies need on-site data communications between computers in
temporary buildings or vehicles to facilitate management of a
large and complex project. Cables would be broken by passing
vehicles and would need moving frequently and licenses for radio
or microwave systems might not be granted for mobile use or in all
Media coverage of
a major sports event involves many TV cameras connected to a field
mixing / commentary studio. Conventionally, this requires
kilometres of cable and days of installation time. The event may
take place in a country where licensing for microwave links cannot
be obtained quickly, the spectrum is overcrowded or interference
studios require cost-efficient backup links either between the
studio buildings or between the studio and the transmission mast /
satellite earth terminal to avoid ‘down-time’ and consequent break
in transmission. In a 24 hour service, maintenance to the main
system may regularly require use of the backup.
sensitive or governmental / military operations require data links
which cannot easily be intercepted and not without the knowledge
of the operator. The near-impossibility of partially-intercepting
the narrow beam of an optical system without break in the original
transmission path or without radical change in received signal
level is a major benefit of free-space optical transmission
Cablefree Solutions Limited is based in
Currently enjoying its position as a technological leader in
infrared free-space communications, Cablefree maintains active R&D
programmes allied to strategic marketing of current products to
ensure that the company offers consistently superior product
performance over comparable commercial systems.