Video Systems Clock/Radio DVR Dokumentacja Pobierz pdf (Strona 28)

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Frequently Asked Questions

What is a Wireless security camera? Most security cameras require two wires: one for power, and one to transmit the captured video to

a display or recording device (TV or DVR, for example). Wireless cameras only require one wire - for power. The video is transmitted wirelessly via

transmitter and receiver devices. A wireless camera is really a combination of the camera plus a built-in wireless transmitter to send the video, and

a receiver to receive the video, which in turn plugs into the monitor or recorder.

For What applications should i consider ip? IP cameras should be considered for large installation sites that already have a high

bandwidth network installed - especially if the cameras will be spread out over a wide area. For example; Hospitals, Schools, etc.

What Features should i look For in a cctV digital Video recorder (dVr)? All DVRs are denitely not made equal! There are

several factors that are critical to consider when purchasing a DVR, especially when comparing price. The most important features to look at are the

number of cameras supported, frames per second (fps), compression technology, hard drive space, network connection / remote viewing capability,

motion detection, scheduling, and ability to save video and audio to a CD or ash drive.

using rg59 cable Vs. plug and play cable? There are two basic approaches to hooking up security cameras and digital video recorders

(DVRs). You can use Plug and Play cable or you can use RG59 Siamese cable. Both cable types combine a cable for the video and a cable for the

power. The advantage of plug and play cable is that it is very easy to use. The connectors for power, video and audio are all pre-attached. All you

have to decide is what length you need (we offer 25, 50, 100, and 150 ft. models). This cable type is a good choice for homeowners who don’t need

a cable run longer than 150 ft. The RG59 Siamese cable is more heavily shielded so it’s more durable and can be run longer distances (up to 1000 ft

without a repeater). Its heavier shielding makes it less susceptible to interference. Florescent lighting in particular can interfere with camera signals.

The RG59 is purchased in 500 or 1000 ft. rolls and each camera run is cut to the exact length needed. Since you need to cut the cable and attach

the connectors, it is a little more involved to install.

Which type oF security camera should i use? A security camera can come in many different styles including dome, professional (bullet),

infrared and hidden. The security camera that will work best for your application will depend on several factors such as whether you will use the

security cameras inside or out, during the day, night time, or both.

can i get audio in my hidden camera? No you cannot. According to United States federal laws, audio should not be used in a surreptitious

manner. One example of surreptitious interception is audio in a hidden camera. This includes pinhole board cameras and all covert or hidden

cameras. Audio in a hidden camera or board camera is only available to law enforcement agencies, with the exception of body worn cameras. Title

18, Section 2512.

What is a Wired security camera? Wired cameras have a video cable that runs from the camera to your recording or viewing device such

as a DVR or monitor. Wireless cameras have a built-in transmitter that sends the video signal to a receiver. The receiver connects to your recording

or viewing device.

hoW many Wireless cameras can you haVe in one location? The new digital wireless transmitters will support up to 8 wireless

cameras in a location.

hoW many hours Will a dVr record? The amount of time a DVR will record is based on the size of the hard drive, the number of cameras

recording and the frames per second. A 4 camera stand alone DVR with a 500GB hard drive will record for 5 days of constant recording and around

2 weeks of motion recording. A 8 camera stand alone DVR with a 500GB hard drive will record for 2.5 days of constant recording and around 1 week

of motion recording. A 16 camera stand alone DVR with a 1TB hard drive will record for 2.5 days of constant recording and around 1 week of motion

recording.

What is a plug and play connection camera? It is a RCA or BNC video plug and a power plug on the camera for easy connection to DVR

or TV. This is done by running the RCA/BNC (Aux) line into the VIDEO IN of the DVR or TV.

do the plug and play connections require extra Wire to run the signal back to the dVr or tV? Yes, you need to buy the

length of cable you need. We offer the CA-25, CA-50, CA-100 and CA-150.

What is a VariFocal lens? A varifocal lens is one where the focal length of the lens can be varied. This is a fancy way of saying it is a zoom

lens. Most varifocal lenses have, and in almost all circumstances should have, an auto iris feature.

What is a Fixed lens? A xed focal length lens cannot zoom. The focus is xed. A xed focal length lens usually allows more light to pass through the

lens at a given focal length than a varifocal, or zoom lens. This can be important in low light situations.

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