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How Multiplexing Techniques Deliver Higher Speeds on Fiber Optic Cabling

The Different Multiplexing Techniques: Different multiplexing techniques are enabling the evolution of network speeds on fiber optic cabling. Time Division Multiplexing is simply a way of transmitting more data by using smaller and smaller increments of time, and multiplexing lower data rate signals into a higher speed composite signal.   Space Division Multiplexing, more commonly […]

Fiber Optic 9 February 2016

Crosstalk Performance: Cables, Connectors, Cords

Historical Crosstalk Performance: Historically, crosstalk was attributed primarily to the cables, but as LAN speeds increased and the cables improved, other channel components started to contribute to the crosstalk performance. The cumulative effect became known as Composite Crosstalk, and the primary channel components that contribute to this are the cords, connecting hardware and cable. It […]

Infrastructure 4 February 2016

The Methodology for Crosstalk Measurement

Cabling Crosstalk Measurement As mentioned in our previous blog, Crosstalk is probably the most important characteristic of copper cabling for high speed data applications. It can be described as the undesired energy appearing in one signal path as a result of coupling from other signal paths. Signals induced from crosstalk can also be significant enough […]

Infrastructure 27 January 2016

Impedance, Channel Return Loss, Attenuation & Crosstalk

Understanding the difference between Impedance, Channel Return Loss, Attenuation and Crosstalk This blog looks at each of the following; Impedance, Channel return loss, Attenuation and crosstalk in more detail below; Understanding Impedance The Impedance of a circuit is the total opposition that a circuit offers to the flow of alternating current (AC), for example a […]

Infrastructure 19 January 2016

Cabling Performance, Channel Capacity and Digital Signal Processing

“The Limit is Set By The Presence of Noise” In a previous blog post, multilevel encoding was discussed as a means to improve the bandwidth-efficiency of a system. However, is there a limit on the number of levels? Yes, the limit is set by the presence of noise. If levels are added, a point is reached […]

Infrastructure 13 January 2016

Advice for IT & Facilities Managers on Cabling Infrastructure Integration

Cabling Infrastructure Integration Using dedicated cabling infrastructures for different systems is a tradition that’s slow to die – now the era of new IP-based wired and wireless systems is making the savings offered by integrated cabling infrastructure hard to ignore. Doing things the way they’ve always been done is a comfortable approach that leads to […]

Infrastructure 16 December 2015

Step by Step Guide to Patch Cord Management: Part 2 Fiber Optic

Best Practices in Fiber Patch Cord Management The principles of good management for fiber cords are similar to those for twisted pair cabling, covered in Part 1 of this series: A Step by Step Guide to Patch Cord Management: Part 1 Twisted Pair. However, there are special considerations with optical fiber, and extra care is […]

Fiber Optic 9 December 2015

Step by Step Guide to Patch Cord Management: Part 1 Twisted Pair

Best Practices in Patch Cord Management Patch cords have the potential to be the weakest link in twisted pair and fiber optic network infrastructures. It is essential to follow correct procedures in administration of twisted pair and fiber optic patch cords to achieve optimum performance and reliability. Applying best practice at every stage will also […]

Infrastructure 4 December 2015

Dirty Fiber Optic Connectors Can Mean Disrupted Data!

Avoiding Dirty Fiber: Cleaning and Inspection of Optical Fiber Connectors Cleanliness of fiber optic connections is critical to the performance of optical communication networks. Contamination – dirty fiber – on a connector end face, even if only at the microscopic level, can create severe problems. Traditional single-mode fiber optic core diameters are approximately 9 microns. […]

Fiber Optic 26 November 2015

The Importance of The Site Survey in Infrastructure Design

Considering Infrastructure Design Probably the first step in considering an infrastructure design is to review the building plans and the RFQ (Request for Quotation) from the customer, consultant or building contractor. But the next step is quite often the most important which is conduct a site walkthrough or survey depending upon the nature of the […]

Infrastructure 18 November 2015