Monday, February 24, 2020

The choice of transmission equipment

The choice of transmission equipment becomes more complicated in terms of data and closed-circuit television (CCTV), since the applications are very varied and there are no regulation standards. In addition, the equipment may not be available in fiber optic transmission options, which is why it is necessary to use devices called media converters to convert the copper ports to the fiber ports.

In computer networks, the Ethernet standards, created by the 802.3 committees of the Institute of Electrical and Electronics Engineers (IEEE), are completely uniform. It is possible to read the standards and determine, for each of the equipment options, how are the transmission levels across the different types of fiber and, thus, choose the one that suits your needs.
Most network hardware, such as switches or routers, is available on optional fiber-optic interfaces, but computers usually incorporate only copper UTP cable interfaces that require media converters. When searching the Internet for “fiber optic media converters” many sources will appear that information about these economic devices. Media converters also allow you to choose the appropriate transmission media for customer installation; you can use single-mode or multimode fiber and even transceivers options for the distance the link should cover.
Fiber optic installation jobs
CCTV is a similar installation. More and more cameras incorporate fiber interfaces because many CCTV systems are located, for example, in large buildings, at airports or in areas where distances exceed the capabilities of coaxial cable transmission. Otherwise, there are video media converters, which the same vendors that sell Ethernet media converters usually have available and that, in addition to being economical, are ready to use. We insist, converters must be chosen that meet the requirements of the link established in the client installation, which, in the case of video, not only incorporates the ability to allow distances but also functions: some video links carry control signals to the camera to pan, zoom in or out of the image and move the camera vertically, in addition to returning the recording to a previous location.

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