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Why the DVR cannot control PTZ?

Posted on : 02 August, 2013


²         ThePTZ breaks down
²         The PTZ decoder’s setting, connection and installation is not correct
²         Part of lines’ connection is not correct
²         PTZ setting in DVR’s menu is not correct
²         The protocol of PTZ  and DVR are unmatched
²         The address of PTZ  and DVR are unmatched
²         When connected with many decoders, the remote end of PTZ decoder’s A and B line should add a 120Ω resistance to eliminate reflex and match the impedance, or the control of PTZ will become unsteady.
²       The distance is too long

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