In Broadcast - May/June 2011 - 46


46

WWW.INBROADCAST.COM | MAY/JUNE 2011

The fibre alternative
by Bob Hart
Many integrators and installers have been sceptical about fibre optics versus even the best Category cabling such as Belden VideoTwist, often they compare the cost of running fibres with the existing copper links they are to replace and reckon it too expensive. No other medium can cost-effectively challenge fibre optics for bandwidth, unrepeated transmission distance and noise immunity, whether in RGB, VGA, HDMI TV or digital signage systems or in LAN/WAN network installations. Bryant Unlimited is the UK’s leading manufacturer of optical fibre interconnects for audio and high-definition video broadcast plus network and high-end A/V applications. Bryant Unlimited has invested heavily in the equipment and expertise necessary to assist installers in using fibre to transport HD, 3Gb/s and Gigabit Ethernet over fibre optic media. Optical multimode 3 (OM3) fibre supports extended gigabit drive distances (850 nm Laser-Optimised 50 micron Multimode Fibre for 10Gb/s application), pushing the evolution and extension of both enterprise

and home networks. By allowing companies more flexibility in Gigabit Ethernet systems, such fibre solutions are paving the way for 10G Ethernet and fibre-to-the-desktop (FTTD) solutions. For many, the biggest mental block in optical fibre installations has been the ‘black magic’ involved in fitting optical fibre connectors to optical fibre cables. This has generally involved the purchase of fibre cleavers, polishing machines for the face of the fibre, adhesives, baking ovens, fibre splicers and a host of other paraphernalia; or the use of pre-packaged fibre with contacts already fitted. Happily, there are a number of fieldinstallable connectors appearing on the scene. These don’t require hours of sweating and polishing. Bryant has for some years now sold TYCO LightCrimp Plus connectors which use AMP-patented crimping technology to make fibre optic termination a one-minute, clean and simple mechanical process – without the use of adhesives, ovens or ultraviolet curing processes. LightCrimp Plus connectors are factory polished, so just strip the cable, cleave the fibre (a fibre cleaving tool is required) and crimp the connector (crimp tool is required)! They offer consistent crimp quality and long-term performance on a par with standard epoxy-style connectors, regardless of temperature variations from –10°C to +60°C As the multimode fibre world

gravitates towards the LC-style connector, the new kid on the block is Belden’s FiberExpress Brilliance connector. Again, these make fibre terminations really fast, simple and reliable. Belden says that they are the only fibre optic connectors in the marketplace to offer reliable terminations in less than five seconds – with NO proprietary termination tools required (assuming you already have a reliable cleaving device)! FiberExpress LC connectors are currently available for 900μm tight buffered single-mode and multimode (OM1, OM2, OM3/OM4) LC connectors. They exhibit a typical insertion loss of 0.2dB. As well as being a noted LEMO SMPTE 311 camera cable manufacturer, Bryant itself is an approved Neutrik OpticalCON assembler and repairer. This ‘system’ is also based on a standard optical LC-Duplex connection, but helps to eliminate its inherent weakness to produce a more rugged connection. The OpticalCON Duo provides not only two fibres, but up to four copper wires to run power or data signals. The OpticalCON Quad has four fibres. In order to create a simplified installation, conventional LC-Duplex connectors fit to the rear of the chassis

connector, which then acts as a ‘feedthrough’. Unlike the FiberExpress connector, the OpticalCON cable connector is not currently available as a single component, but comes pre-assembled with a choice of mobile field cable types, which can be ordered in various lengths. The connectors feature a rugged Push-Pull locking mechanism, all-metal housing and heavy-duty cable retention. When not mated, the faces of the optical connections are protected from dust and dirt through automatic sealing covers and gaskets. The only constant thing in system install is change, but with Bryant Unlimited as your partner, you will be kept up-to-date with the latest cable and connector technology that is designed to the highest standards and performance requirements, and delivered with the highest levels of service. Indeed the new Bryant Unlimited catalogue is now available free-of-charge, and includes over 100 new product lines.


http://WWW.INBROADCAST.COM http://www.medialease.com http://www.medialease.com

Table of Contents for the Digital Edition of In Broadcast - May/June 2011

In Broadcast - May/June 2011
NAB Emerging From Behind the Cloud
Contents
Communicating With Your Market
Autoscript’s Rapid Reaction Force
Bringing It and Broadcast Together
Broadcast Batteries Today and Tomorrow
New Developments in Broadcast Subtitling and Captioning
New Developments in Fibre
Multi-Format Encoding
Live Production
Gekko Leds in Film and Broadcast
Marketplace
The Fibre Alternative
In Broadcast - May/June 2011 - NAB Emerging From Behind the Cloud
In Broadcast - May/June 2011 - Cover2
In Broadcast - May/June 2011 - Contents
In Broadcast - May/June 2011 - 4
In Broadcast - May/June 2011 - 5
In Broadcast - May/June 2011 - 6
In Broadcast - May/June 2011 - 7
In Broadcast - May/June 2011 - 8
In Broadcast - May/June 2011 - 9
In Broadcast - May/June 2011 - 10
In Broadcast - May/June 2011 - 11
In Broadcast - May/June 2011 - 12
In Broadcast - May/June 2011 - Communicating With Your Market
In Broadcast - May/June 2011 - Autoscript’s Rapid Reaction Force
In Broadcast - May/June 2011 - 15
In Broadcast - May/June 2011 - Bringing It and Broadcast Together
In Broadcast - May/June 2011 - 17
In Broadcast - May/June 2011 - 18
In Broadcast - May/June 2011 - 19
In Broadcast - May/June 2011 - 20
In Broadcast - May/June 2011 - 21
In Broadcast - May/June 2011 - Broadcast Batteries Today and Tomorrow
In Broadcast - May/June 2011 - 23
In Broadcast - May/June 2011 - 24
In Broadcast - May/June 2011 - 25
In Broadcast - May/June 2011 - 26
In Broadcast - May/June 2011 - 27
In Broadcast - May/June 2011 - 28
In Broadcast - May/June 2011 - 29
In Broadcast - May/June 2011 - New Developments in Broadcast Subtitling and Captioning
In Broadcast - May/June 2011 - 31
In Broadcast - May/June 2011 - 32
In Broadcast - May/June 2011 - 33
In Broadcast - May/June 2011 - New Developments in Fibre
In Broadcast - May/June 2011 - 35
In Broadcast - May/June 2011 - 36
In Broadcast - May/June 2011 - 37
In Broadcast - May/June 2011 - Multi-Format Encoding
In Broadcast - May/June 2011 - 39
In Broadcast - May/June 2011 - Live Production
In Broadcast - May/June 2011 - 41
In Broadcast - May/June 2011 - Gekko Leds in Film and Broadcast
In Broadcast - May/June 2011 - 43
In Broadcast - May/June 2011 - Marketplace
In Broadcast - May/June 2011 - 45
In Broadcast - May/June 2011 - The Fibre Alternative
In Broadcast - May/June 2011 - 47
In Broadcast - May/June 2011 - 48
In Broadcast - May/June 2011 - Cover3
In Broadcast - May/June 2011 - Cover4
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