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Системы видеонаблюдения и контроля доступа, охранно-пожарная сигнализация, системы оповещения.

 

e-mail: info@videosb.spb.ru

 
     

  • >>Главная
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  • >>[an error occurred while processing this directive]Оборудование
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    • >>[an error occurred while processing this directive]Видеокамеры
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      • >>[an error occurred while processing this directive]Видеорегистраторы
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          • >>[an error occurred while processing this directive]Объективы
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            • >>[an error occurred while processing this directive]Источники питания
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            • >>[an error occurred while processing this directive]Мониторы
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              • >>[an error occurred while processing this directive]Шлагбаумы
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            • >>[an error occurred while processing this directive]Цены
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              • >>[an error occurred while processing this directive]Железные дороги
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              • >>[an error occurred while processing this directive]Сеть филиалов
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            • >>[an error occurred while processing this directive]Доставка
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            • >>[an error occurred while processing this directive]Клиенты
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            • >>[an error occurred while processing this directive]Контакты
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            • [an error occurred while processing this directive][an error occurred while processing this directive]Решения видеонаблюдения[an error occurred while processing this directive]Типовые решения[an error occurred while processing this directive]
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            • [an error occurred while processing this directive][an error occurred while processing this directive]Контакты[an error occurred while processing this directive]Контакты[an error occurred while processing this directive]

            Системы видеонаблюдения – это комплекс оборудования и программ (камеры видеонаблюдения, мониторы, объективы, видеорегистраторы и пр. видеооборудование), которое используют для организации охранного видеонаблюдения на объектах, незавимисо от их территориального месторасположения.

            Кабель

            CCTV кабели используются для передачи информации в монитор из камер видеонаблюдения. Эти кабели высокого качества и поэтому на мониторе картинка будет без какого-либо ухудшения или мерцание. Два типа кабеля видеонаблюдения используются коаксиальный кабель и витая пара.

            Радиочастотные коаксиальные кабели применяются для черно-белых, цветных и цифровых камер видеонаблюдения. Профессиональный монтаж систем видеонаблюдения позволяет располагать камеры видеонаблюдения на расстоянии 400-450 м. При выборе радиочастотного кабеля для систем видеонаблюдения прямого усиления необходимо учитывать следующее:

            • не рекомендуется превышать уровень 5 дБ затухание сигнала в видеотракте;
            • не рекомендуется применять телевизионные коаксиальные кабели со сталемедным внутренним проводником, так как они рассчитаны для работы с ВЧ сигналами, начиная с частоты 10...40 МГц;

            Для передачи ВЧ сигнала и подачи электрического напряжения 9-13 В используются специальные кабели (КСВ) с жилами дистанционного питания.