GE MobileView 4, Руководство по установке

Страница: 19 / 106

Chapter 2
Camera installation
9
Camera cable guidelines
When installing camera cable, follow these guidelines:
• Avoid excessive lengths of cable at the control and device end. Pull back excess
cable to a duct area where it can be folded and secured. Leave a service loop as
directed for specific devices.
• Cables should not come into contact with bare metal edges, light ballasts, or
magnetic speaker coils. If ballasts and speaker coils cannot be avoided, cross them
perpendicularly.
• Do not tighten cables that are secured with cable-ties to the extent that the cable is
compressed or damaged. Do not crimp, crush, or severely bend the cables.
• When passing cables through tapping plates or metal sidewalls of the vehicle , if
possible, insert grommets in the holes to protect the cables. If it is not possible,
make sure that the protective outer CL2 jacket is maintained when passing the
cables through the holes.
• When pulling cable through the conduit, do not jerk or overpull the cables. These
actions will stretch and damage the cable. If you must pull cables through vehicle
walls with limited access or conduit, attach a pull line to the cable jacket, not to the
connector, and gently pull the cable through the appropriate routing paths.
• Route cables from each camera location to the DVR location as determined by your
specific system layout.
Figure 3 on page 10 shows an example of cabling layout.
• After reaching camera locations, leave enough cable for a 6 in. (152 mm) service
loop at each location.