EN 50083-10:1999

EN 50083-10:1999 is a standard published by CLC. Its full title is "Cable networks for television signals, sound signals and interactive services - Part 10: System performance for return paths". This standard covers: This standard is dealing with the transparent return path of cable networks operated in the frequency range between 5 MHz and 65 MHz or parts thereof. Higher frequencies may be used in fibre based networks. NOTE: In addition it is possible to use the frequency range from 0 to 5 MHz for return path transmissions, e.g. for NMS or other control, monitoring and signaling purposes. Applications below 5 MHz are not covered by this standard. An active return path carries typically only return signals. A passive return path can be used for both return and forward signals. This standard lays down the basic methods of measurement for signals typically used in the return path of cable networks in order to assess the performance of those signals and their performance limits. All requirements refer to the performance limits which shall be obtained between the reference points (figure 1) of the return path system. One reference point is the network termination close to the subscriber. It is the last point where all forward and return signals are present and carried on the same cable. If no network termination point exists, the reference point is the system outlet. The other reference point is the input of the return signal receiver (or transceiver). At this point the transparent signal path ends and behind this point the signal is treated in a non-transparent way. The return signal receiver can be situated at the headend but can also be at the node of the coaxial cell or at any other point of the network.

This standard is dealing with the transparent return path of cable networks operated in the frequency range between 5 MHz and 65 MHz or parts thereof. Higher frequencies may be used in fibre based networks. NOTE: In addition it is possible to use the frequency range from 0 to 5 MHz for return path transmissions, e.g. for NMS or other control, monitoring and signaling purposes. Applications below 5 MHz are not covered by this standard. An active return path carries typically only return signals. A passive return path can be used for both return and forward signals. This standard lays down the basic methods of measurement for signals typically used in the return path of cable networks in order to assess the performance of those signals and their performance limits. All requirements refer to the performance limits which shall be obtained between the reference points (figure 1) of the return path system. One reference point is the network termination close to the subscriber. It is the last point where all forward and return signals are present and carried on the same cable. If no network termination point exists, the reference point is the system outlet. The other reference point is the input of the return signal receiver (or transceiver). At this point the transparent signal path ends and behind this point the signal is treated in a non-transparent way. The return signal receiver can be situated at the headend but can also be at the node of the coaxial cell or at any other point of the network.

EN 50083-10:1999 is classified under the following ICS (International Classification for Standards) categories: 33.060.40 - Cabled distribution systems. The ICS classification helps identify the subject area and facilitates finding related standards.

EN 50083-10:1999 has the following relationships with other standards: It is inter standard links to EN 50083-10:2002. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.

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