博文

目前显示的是 十月, 2015的博文

Five Tips to Purchase of a Transceiver Module

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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. The transceiver acts to connect the electrical circuitry of the module with the optical or copper network. There are multiple types of transceivers available on the market, which makes people feel confused about how to choose the right one for their own device. In today’s article, we describe different aspects of transceivers that need to be known before purchasing a transceiver module. I hope it will be a good reference source for the new telecom technicians. What Does Form-factor Mean?
Multi-source agreements (MSAs) is a popular industry format jointly developed and supported by many different network vendors. It specifies guidelines for electrical and optical interfaces, mechanical dimensions and electro-magnetic specification …

Picking the Right Drop Cable for the Long Run

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Introduction
An emerging interest in fiber to the home (FTTH) networks has swept over the whole telecommunications industry. With continuing demand for more bandwidth, telecom service providers have begun to deploy optical fiber deeper into the network and closer to the subscriber residence. The drop cable connection serves as a key component in FTTH networks. Choosing the right drop cable interconnect solution will directly affect network reliability, operational flexibility and the economics of FTTH deployment. This article will highlight the various technical considerations which should be made when selecting optical drop cable for FTTH networks. Typical Optical Drop Cable Design
Optical drop cable serves as the direct link from the service provider distribution network to the subscriber. This cable typically contains no more than 12 optical fibers, located loosely in a buffer tube. The following four cable designs presented in this article are the most commonly used nowadays. You c…

Connecting the Future With FTTH Cables

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More and more FTTH (Fiber to the home) networks have been and will be installed in subscribers’ houses due to growing requirements for more bandwidth and enhancements on their technologies. A variety of FTTH cables are accordingly designed including feeder cable, distribution cable, drop cable, etc. Today, this article will introduce the three types of FTTH cables in details. Before describing the three FTTH cables, first you should know how they work in FTTH network. Cable Segments in FTTH Network
Access network Out Side Plant (OSP) cabling can be categorized into three segments, namely feeder cable, distribution cable, drop cable. Figure 1 gives a simple pictorial view of the FTTH network infrastructure elements. From the above diagram, we know that the feeder cable is usually connected between the Access Node to Primary Fiber Concentration Point (FCP) to provide the necessary fiber capacity to serve the FTTH area. It usually covers a few kilometer distance. The distribution cable o…