World Helmsman WH-M100, Руководство пользователя

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WH-M100/ WH-M150/ WH-M300/ WH-M500 network camera
User Manual
Precautions on installation
1. Basic requirements for installation
Follow local regulations about installation safety request.
Check out if accessories are complete. Optional accessories are required for different installation sites.
Please contact your local distributors for proper installation accessories, so that the camera could be
installed safely without causing danger.
Check if the installation location is of sufficient height.
Check if the installation location is strong enough for supporting cameras. Make sure installation spots
(ceiling or wall) is of sufficient strength to support the camera and bracket without immediate danger of
falling.
2. Cable standards
Coaxial cable for image signal:
Select proper cable length for your installation distance. Recommended spec. is as follows:
a. RG59/U: 750ft (230 meters)
b. RG61/U: 1000ft (305 meters)
c. RG11/U: 1500ft (457 meters)
3. RS485 cable
Please comply with RS485 wiring standards and select proper RS485 cable. Improper cable may result in
RS485 communication transmission error, which may cause speed dome PTZ cameras to react incorrectly.
Please pay much attention to this prior to installation.
When thinner or lower anti-interference RS485 cable is used for connecting the camera, the maximum
transmission distance may be shortened and vice versa.
Standard rule for RS485 transmission distance: