As telcos turn to triple-play services (video, voice and high-speed internet access) to reduce churn and increase revenue, they need to find a way of delivering TV and video to the end-user as cost-effectively as possible. Each of the major point-to multi point PON variants – BPON, GPON and EPON – offers two different methods […]
Month: July 2015
What is PON Passive optical networks
The PON architecture comprises an optical line terminal (OLT), based in the central office, and the optical networking terminal (ONT) – sometimes referred to as an optical network unit (ONU) – based on the customer premise. To connect the OLT and the ONT with data, a fibre-optic cable is used to carry a wavelength downstream. […]
FTTx Overview
FTTx definitions 1 Overview The FTTx acronym is widely understood as Fibre-to-the-X, where X can denote a number of destinations. These include Home (FTTH), Premise (FTTP), Curb (FTTC), Building (FTTB), Home (FTTH), User (FTTU) and Node (FTTN). Clearly, however, there are overlaps in meaning. FTTP is similar to FTTB, and FTTC resembles FTTN. There is […]
Aerial Cable Installation – Cable Installation
Aerial or overhead optical cables are placed utilizing methods similar to other telecommunications cables. Aerial optical cable systems are constructed both using self supporting design and standard optical fiber cables. Standard design cables should be lashed to a preinstalled strand or overlashed onto an existing cable. 8.1 The optical cable can be pulled in from […]
Direct Buried Cable Installation – Cable Installation
Many fiber optic installations require direct buried applications. For any direct burial, the use of an armor tape cable design or a plowed conduit system is recommended. This will preclude cable damage during installation and provide additional support and rodent protection. 1 Fiber optic cables are typically buried at depths from 36 to 54 inches. […]
Optical Fiber Ranger
Optical Fiber Ranger Fiber Ranger is newly designed fiber optic tester, it aims at fiber fiber network installation, fiber network engineering acceptance and fiber network maintenance. It can detect fiber fault location more accurate and quick, and designed for field use. This fiber ranger is an economical tester instead of OTDR in the test […]
which is better AON or PON ? AON versus PON
AON advantages ■ Higher symmetrical bandwidth capability, which could become an even more significant advantage if demand for P2P and Web 2.0 applications increases rapidly (see 4.2.3). ■ Greater bandwidth scalability. The ability to swap Ethernet line cards in the central office to increase bandwidth capability makes AONs far more flexible than PONs. By virtue […]
What is AON Active optical networks
An active optical network (AON) comprises an active Ethernet switch that acts as the intermediate point between the central office and the end-user. Theoretically, this switch is capable of delivering symmetrical speeds of 100Mbps to 32 users simultaneously. This level of throughput could only be achieved, however, if the link between the remote Ethernet switch […]
Next-generation PONs
The FSAN consortium, through its Next Generation Access (NGA) task group, is exploring different technologies to evolve optical access systems beyond GPON. The two main candidates are 10G PONs and WDM-PONs. 10G PONs enable one wavelength to carry 10Gbps capacity, which is shared in the same way as existing point-to-multipoint PON architectures. WDM-PONs allow multiple […]
Copper, Fiber or Wireless?
While discussions of which is better – copper, fiber or wireless – has enlivened cabling discussions for decades, it’s becoming moot. Communications technology and the end user market, it seems, have already made decisions that generally dictate the media. The designer of cabling networks, especially fiber optic networks, and their customers today generally have a […]