Top articles
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Polarity Management in Ribbon Cable Designs
To maximize the utilization of space and pathway, local area network (LAN) campus, enterprises backbones and data centers nowadays are migrating to higher-density fiber counts to meet system bandwidth needs. Thus, instead of loose tube and tight-buffered...
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Introduction to Fiber Optic Pigtails
A smooth connection between cable and other optical devices allows the optical signals to pass with low attenuation and little return loss, which is vital for telecommunication network. Fiber optic pigtails, compared with the regular fiber jumper, is...
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How to Clean Fiber Optic Connector
To keep the proper operation of the equipment, regular cleaning and maintenance is fundamental. Fiber optic connector as an indispensable component of optical network, is typically connected with a fiber jumper, then plugs into a switch or router. Telecommunication...
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Choose 12-fiber or 24-fiber for 40/100G Migration
There is no doubt that 40 and 100 GbE are just around the corner, or the reality is coming. To keep up with the pace, data center managers are striving to determine which fiber optic links will support 10 GbE today while future proofing the best, most...
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The Basics of 1000BASE-SX and 1000BASE-LX SFP
Gigabit Ethernet has been regarded as a huge breakthrough of telecom industry by offering speeds of up to 100Mbps. Gigabit Ethernet is a standard for transmitting Ethernet frames at a rate of a gigabit per second. There are five physical layer standards...
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Laser-optimized Multimode Fiber – OM3 and OM4
How do I determine the type of fiber needed for my campus backbone? This is the question routinely asked by network designers. I must say, with many cabling options available in the market, it is a huge project to deploy a Gigabit Ethernet network—10GbE...
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Multi-mode or Single-mode Optics for 40GbE Network
To back the changing and fast-growing bandwidth demands of data center, in 2010, the IEEE ratified 40 Gigabit and 100 Gigabit standards, known as IEEE 802.3ba. 40G and 100G Ethernet can be deployed using the same cabling systems today. Both single-mode...
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The 40G QSFP transceiver Comparison
Data center regularly went through great migration from 1G, 10G to 40G, 100G over the past few decade. Since IEEE 802.3ba standard defined the 40G Ethernet on June 17, 2010. The newest widely adopted optical transceivers is the QSFP+ that offers aggregated...
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ZTE announces record 2015 revenues on LTE and optical networks
Chinese networking vendor ZTE maintained its strong profit growth in 2015, but this time it was fuelled by a healthy jump in revenues as much as cutting overheads. In its guidance for full-year 2015 ZTE said it expects revenue to top RMB 100 billion,...
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Introduction to 25G and 40G Ethernet Network
When you look at the evolution of networking and the data that drives it, there is no surprise that Ethernet has been and will continue to be the most widely used network interface. Consumers and network designers wish to smoothly migrate to higher network...
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Volunteers Aid Pioneering Edsac Computer Rebuild
Think of a shed and objects like spades, forks and compost in a wooden hut at the end of the garden come to mind. However, in the UK, some very old hardware is being brought back to life in some of those scruffy, but often well-organised, workspaces....
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Guide to SFP+ Transceiver For 10 Gigabit Ethernet
Introduction to SFP+ transceiver The small form-factor pluggable plus (SFP+) transceiver is based on SFP and developed by the ANSI T11 fibre channel group. SFP+ has become the most popular socket on 10GE systems due to its smaller size and lower power....
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Classification of Transceiver Modules
Transceiver modules can be classified into different categories based on several different criteria. Package, transmission distance, wavelength, work rate, fiber mode, and connector type are all the common characteristics used for defining fiber optic...
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Single-mode vs. Multi-mode Transceiver
We are quite familiar with difference between single-mode fiber (SMF) and multi-mode fiber (MMF), but we know little about single-mode and multi-mode transceiver. So what are they? And how to choose between them. Actually single-mode and multi-mode fiber...
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Structured Cabling or Unstructured Cabling Solutions
40G network has replaced 10G lately and used worldwide, under this circumstance, 40G equipment like 40G transceivers and QSFP+ cables are required. Plan the cabling system in advance is the prerequisites to the designing of network system. The goal is...
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To Push or to Pull, That Is the Question?
Push and pull usually come as the opposite side, but in the case of telecommunication field, they definitely come hand in hand. Push-Pull or Pull-Pull cables are used for greater freedom in routing allowing for smaller bend radii in some installations....
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Ford plans commuter app, Ford car not required
SAN FRANCISCO – Ford is making a big push to get intimately involved with the daily mobility needs of all motorists, regardless of whether they own a Ford automobile. In April, the automaker will launch a smartphone app called FordPass that helps users...
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How to Minimize the limitations on the Transmission Distance
Transmission distance is the NO.1 factor that designers would take into account when deploying network because the exact transmission distance that fiber optic can support is usually limited by many factors. How to avoid this situation? Is there a method...
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Optical network sales slip in third quarter 2015: IHS
Sales of optical network hardware slipped 10% sequentially in the third quarter of 2015, according to the most recent tally from IHS (NYSE:IHS). Gains in North America were not enough to offset declines in the Europe/Middle East/Africa (EMEA) and Central...
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25G Ethernet Q&A
25G Ethernet, developed by IEEE 802.3 task force P802.3by is a newly proposed standard for Ethernet connectivity. After its appearance, the road to 100G is considered to be 10G→25G→100G. 25G Ethernet may be the quickest path to completion IEEE Ethernet...
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Five Tips to Purchase of a Transceiver Module
A transceiver is a combination of a transmitter and a receiver in a single device where they function independently for bidirectional communication. Furthermore, transceiver modules are hot-swappable I/O (input/output) devices which plug into module sockets....
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Introduction to CFP-40G-LR4 and CFP-100G-LR4
The C form-factor pluggable (CFP) is specified by a multi-source agreement (MSA) among many manufacturers for the transmission of high-speed digital signals. The CFP transceiver can both support 100 Gbit/s or OTU4, and 40Gbit/s OTU3 signals. The 40G and...
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Describing Cisco GLC 1000BASE SFP Transceiver Modules
Cisco SFP module, compatible with 1000BASE Gigabit Ethernet standard is a hot-swappable input/output device that can plug into a Gigabit Ethernet slot of Cisco switches and routers. Cisco, as a telecom giant supplies a whole series of fiber optic transceiver...
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Cost Comparison : Single-mode Vs. Multimode Fiber Optics
There is the long-term debate between single-mode and multimode optics. From the data rate, link distance, and costs, people usually will calculate every single difference between them. However, this article will not talk about the technical distinctions...
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250um Loose-tube vs. 900um Tight Buffered Fiber
Choosing the right fiber-optic cable has become more challenging than ever. Factors like the advent of new cable designs, suppliers, changes in fiber specifications, and the many claims of cable performance can confuse even the most seasoned network designers....
