Lucas

We will be closing at 1pm on Friday 21st December and will not reopen over the festive period until Wednesday 2nd January 2019.

We wish you all a happy holiday and prosperous 2019!

Here are our office opening times for the 2017 holiday season:

Friday 15th December: We will close at 1pm (It’s our Christmas party)

Monday 18th December : Open as normal
Tuesday 19th December : Open as normal
Wednesday 20th December : Open as normal
Thursday 21st December : Open as normal
Friday 22nd December : We will close at 3pm

We are then closed until Tuesday 2nd January when normal opening hours will resume.

We wish you all a happy holiday and prosperous 2018!

We have been appointed by cable management manufacturers, HellermanTyton as an approved ‘Network Sciences System Installer’.  This means we are authorised to provide the Network Sciences 25 year system warranty with relevant installation projects.

Just a quick reminder to let you know that Lucas carry out our own fibre-optic installations and repairs. We have the latest splicers and OTDR test equipment to ensure that typical splice losses of less than 0.1dBs. The accepted industry standard for a join or splice is 0.5dBs.

Not only do we provide these services direct to businesses and schools we also work with a number of partners including electrical contractors and IT companies.

Call Lee or Garry on 01706 217755 to discuss your specific requirements.

OM4 fiber is a laser-optimized, high bandwidth 50um multimode fiber. OM4 fiber is not a new fiber type. All major fiber manufacturers have been selling a fiber with an effective modal bandwidth (EMB) value equivalent to that specified by OM4 since 2005. The change is that there is now a standard that is specifically targeted at this product. Prior to the standardization of OM4, these higher bandwidth fibers were sold as a part of OM3.

OM3 and OM4 fiber are referred to as “laser-optimized” multimode fibers because they are specifically designed for optimum performance when used with low cost Vertical-Cavity-Surface-Emitting-Lasers (VCSELs).

OM4 fiber is designed to enhance the system cost benefits enabled by 850nm VCSELs for existing 1 Gb/s and 10 Gb/s applications as well as future 40 Gb/s and 100 Gb/s systems.

OM4 fiber supports Ethernet, Fibre Channel, and OIF applications, allowing extended reach upwards of 550 meters at 10 Gb/s for ultra long building backbones and medium length campus backbones.

:: Why Is It Called OM4?

Multimode fibers are identified by the OM (“optical mode”) designation as outlined in the ISO/IEC 11801 standard.

• OM1, for fiber with 200/500 MHz*km overfilled launch (OFL) bandwidth at 850/1300nm (typically 62.5/125um fiber)
• OM2, for fiber with 500/500 MHz*km OFL bandwidth at 850/1300nm (typically 50/125um fiber)
• OM3, for laser-optimized 50um fiber having 2000 MHz*km effective modal bandwidth (EMB, also known as laser bandwidth), designed for 10 Gb/s transmission.
• OM4, for laser-optimized 50um fiber having 4700 MHz*km EMB bandwidth designed for 10 Gb/s, 40 Gb/s, and 100 Gb/s transmission.

:: OM4 Fiber Standard

The TIA/EIA approved OM4 specification in its TIA-492AAAD in 2009. IEC’s document covering OM4 standard is IEC 60793-2-10 as fiber type A1a.3.

:: Bandwidth Comparison of OM1, OM2, OM3, and OM4 Fibers

The following table shows the bandwidth comparison among OM1, OM2, OM3 and OM4 fibers.

The following table and graph shows the maximum distance different multimode fibers can carry.

http://www.fiberoptics4sale.com/wordpress/what-is-om4-fiber/

Lucas were recently awarded a major contract to install NetGear ProSafe Wireless equipment into a number of schools in Lancashire. A number of NetGear ProSafe WFS709TP Smart Wireless Controllers and in excess of 100 NetGear ProSafe WAGL102 POE access points were installed during the schools downtime over the summer period. Supporting services included the design and installation of the Cat5e network cable required to support the wireless infrastructure.

Fibre optic cable, once the preserve of long distance cable runs and high-speed server backbone connections, we have recently been asked by one of our customers to quote for a fibre-to-desk solution in their quest for the ultimate in performance.

The proposed Category 7 will involve the use of shielded rather than unshielded twisted pair copper cabling. The switch will help achieve data rates of over 1GB. However, it may be that installing fibre is the only way to future-proof an office currently being fitted with a network.

Proponents of fibre to the desktop point out that, despite the advances in signalling technology that have allowed data rates over copper to rise from 10Mb to 100MB and now to 1GB, there are intrinsic limitations on the capacity of copper cabling. As data rates begin to approach 10GB, the cost of the transmission equipment will begin to rise rapidly and the transmission distances possible fall equally rapidly. If so, multi-mode fibre optic cables could become more cost effective than copper for horizontal networks.

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