Equally important, to the lifespan of the
installation, is the quality of the connectors used on
the cable. Ideally Adler crimp BNC connectors should
be used. A cheap BNC connector can also have an
adverse effect on the quality of the video signal. We
fit either a red or a blue rubber boot to each cable.
Firstly, this protects the connection and indicates
whether the cable has an incoming or outgoing video
signal. We use red to indicate an incoming signal and
blue an outgoing signal.
All camera and cables are numbered. They are
numbered for maintenance purposes. Invariably cameras
are unplugged during maintenance and often
installation companies change the order of the cameras
when they re-plug them back into the system. Having
numbered cables ensures that the cameras are plugged
back into their correct location and reduces the
amount of down time.
All cameras that are not installed in a dust-free
internal environment are encased in either a stainless
steel or aluminium housing with an ingress protection
rating of IP65. These housings have a life span of at
least 10 years compared to mild steel housings, which
often need to be replaced after 18 months.