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L-Com, Inc. - AL-VDP012DW
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12VDC Weatherproof PTZ Video Camera Lightning Protector - Grounded BNC Connectors

Model: AL-VDP012DW

  • Individual protection circuits for analog video line, RS485 control lines and power lines
  • 3-Stage protection provided for RS485 and power lines
  • Grounded BNC connectors in video circuit
  • For 12VDC analog PTZ video cameras
  • NEMA rated enclosure with gasketed cover and concealed mounting holes
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The HyperLink AL-VDP012DW protector is designed to provide superior lightning and surge protection for analog PTZ video cameras. These protectors incorporate individual protection circuits for the analog video line, RS485 control line and 12VDC power lines. All housed in one NEMA rated weatherproof enclosure.

Analog Video Line

The video protection circuit is designed to protect 75 Ohm coaxial video lines connected to the AL-VDP012DW via its BNC connectors. This circuit utilizes an avalanche diode in concert with a low capacitance diode array. This design minimizes capacitive loading of the line and provides improved frequency response over competitor's models. The AL-VDP012DW connects the coaxial cable shield to the unit's ground terminal. Right angle BNC connectors provide easy hookup of the video lines.

RS-485 Control Line

A high power 3-stage design is used to provide protection for the PTZ camera's RS485 control line. The 3-stage design can handle higher-level transients than a protector that uses only diodes. The first stage is comprised of a differential gas discharge tube. Stage two is a pair of current limiting series resistors and the final stage is a low capacitance diode array. The RS485 control line is connected to the protector via its screw terminal blocks. The terminal blocks are removable to ease wiring.

12VDC Power Lines

The PTZ camera's power lines are also protected using a 3-stage design. This provides superior protection from transients and surges. The first stage is comprised of a differential gas discharge tube. Stage two is a pair of suppression coils and the final stage is a 5000 Watt uni-polar Transient Voltage Suppression (TVS) Diode. Power lines are connected to the protector via high current rated screw terminals.

Weatherproof Design

These units feature a weatherproof ABS enclosure with gasketed cover and concealed mounting holes. Water tight cable glands provide entry and exit points for cables. A ground clamp on the enclosure's exterior provides a tie point for earth ground.

  • Individual protection circuits for analog video line, RS485 control lines and power lines
  • 3-Stage protection provided for RS485 and power lines
  • Grounded BNC connectors in video circuit
  • For 12VDC analog PTZ video cameras
  • NEMA rated enclosure with gasketed cover and concealed mounting holes
  • Applications:
    • Pan-Tilt-Zoom (PTZ) analog video cameras
 
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