Vicon PILOT PLUS V1544, Инструкция по установке и эксплуатации

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Chapter 4 Maintenance
Cable Recommendations
Video Cabling
Caution :
Careful selection of proper cable is essential to obtain the best performance
from this equipment. Vicon assumes no responsibility for poor performance
when cables other than those recommended, or equivalent, are installed. In
all cases, coaxial cable impedance should be 75 ohms.
Materials
Use only a pure copper center conductor. Do not use a copper-plated steel or
aluminum center conductor, as they will result in poor quality video. Solid-
core bare copper conductor is the best type where flexing and bending will be
minimal. If severe bending and flexing is required for installation, use a
stranded center conductor. Never exceed the manufacturer's minimum bend
radius specification. Use cellular (foam) polyethylene dielectric except where
heavy moisture exists. For moisture conditions, use solid polyethylene
dielectric cable with a heavy exterior insulation. The shield must be copper
braid providing 95% or better coverage.
Cable Types
The cable types listed in the following table are the most common 75-ohm
types used. They vary in size (diameter), dielectric type and net DC
resistance. The larger cable results in a lower DC resistance and better video
quality, with increased difficulty in handling and installation. Let the required
picture quality and cable distance provide a guide in choosing the best cable
type. For cables other than the approved Vicon types below, contact the
manufacturers listed below. Note that “BC” refers to bare copper and “TC”
refers to tinned copper.
XX200-00 Pilot Plus