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  1. Hi Friends, I am facing a problem at one of my site which is in a remote area around 300 Kms from Mumbai. If any of you could help me with the solution it would be very grateful. • I have installed a 32 Channel DAHUA DVR with 24 1MP Dome and Bullet Cameras. • The DVR is installed in a DVR Rack in Server Room. • The VGA output is connected to a Local Samsung 22” Monitor with a Wireless Mouse. • The HDMI output is extended to the Director’s Cabin using a 60 Meter HDMI extender through a Cat6 Dlink Cable of 48 meters. Connected to another Samsung 22” Monitor. • The USB port is extended to the Directors Cabin through a Cat6 Dlink Cable of 48 Meters. And is connected with a normal USB mouse. The whole systems is working beautifully.. Both screens and mouse working at server room and director’s cabin NOW… The problem .. Whenever someone turns ON / OFF any fan in the whole building, the screen at the Directors goes OFF for 2 seconds and then comes back ON. It also happens if we change the speed of fan with regulator. The regulators are of hard switch type with fixed speeds[1,2,3,4,5,0] (Not variable type) Nothing happens if we switch ON / OFF any other light switch or Desktop PC etc. There is Single phase in the building. The earthing is properly buried in the ground. Experiments already done … with same results • Bypassed the Fan switch, regulator. • Changed Cat6 Cables, HDMI Cables / VGA Cables. • Changed HDMI Extenders • Tried with VGA Extenders • Shortened the length of 48 Meters to 10 meters • Tried connecting 2.2MF Capacitors with Extender’s Power Supply to suppress any pulse. • Changed Samsung Monitor with Acer Monitors. CAN SOMEONE HELP ME OR EXPLAIN ME ABOUT SOLUTION TO THIS PROBLEM.. Asim Bhaldar , CROX Security & Lifestyle System Mumbai – 9820012210 / 022.2677.2677 asim@crox.in
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