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FAQ
About Wireless Device, which bands can they use?
The wireless edge devices support the 802.11a/g protocols in the 2.4GHz and 5GHz unlicensed frequency bands. Wireless transmission of video surveillance is cost efficient, allows rapid deployment, and offers an alternative to digging trenches for cables.
What is UTP wire?
UTP is "Unshielded Twisted Pair" wire or cable; also called "paired" cable. This is the type of cable that works best with the NITEK Twisted Pair Video Transmission Systems. Cable that is termed "multi-conductor" is not usually "paired" and must be avoided. Always verify that the cable is Unshielded Twisted Pair (paired) cable.
About Wireless Device, which network configurations can they supports?
The Verint wireless edge devices support multiple configurations: * Point-to-point application – One S1100 transmitter and one S1100 receiver * Point-to-multipoint application—One S3100 bridge linking multiple S1100w transmitters to a LAN * Point-to-point repeater—Two S3100 bridges acting as a range extender for one or many pairs of S1100 transmitters (wired or wireless) * Point-to-multipoint repeater—Two S3100 bridges acting as a range extender for multiple S1100w transmitters * Wireless bridge—Two S3100 bridges linking two networks (wired or wireless)
Can shielded twisted pair be used?
Some customers have successfully used shielded wire up to a few hundred feet. However NITEK does not recommend it. Its high-frequency roll-off will severely degrade the distance performance. Use of an amplified receiver can compensate for some signal loss. use of individually shielded pairs be avoided. The higher electrical capacitance of individually shielded pairs causes the operating range of the system to be drastically reduced. Multi-pair wire (six pairs or more) can have an overall shield without degradation.
What type of UTP wire works best for twisted pair video transmission?
The NITEK Twisted Pair Video Transmission Systems operate well over Unshielded Twisted Pair wire gages from 12AWG through 26AWG. The systems are optimized for 24AWG and distance specifications given are for 24AWG.
Is solid wire or stranded wire better for twisted pair transmission?
Yes, however, due to near-end crosstalk, there are distance limitations. When using Category 2 or 3 wire, do not send video in opposite directions within the same wire bundle more than 1000. With Category 5, do not send bidirectional video more than 2000
Why do the wires have to be twisted?
The NITEK systems utilize a "balanced output" design. Sending the video signal into a twisted pair provides an effective method of canceling extraneous noise and interference. Un-twisted pairs are not recommended, since the system becomes very much susceptible to interference, which will be exhibited in a degradation of the video display, whenever extraneous signals are present.
How many video signals can be run in a common cable?
There is actually no limit as to the number of video signals that can be run in a common unshielded twisted pair cable.
How can pan/tilt/zoom control be done with a NITEK UTP video system?
For "up-the-coax" systems in applications under 1,000 feet, the VB37M or F Video Balun Transceiver can be used to provide video and control over a single twisted pair. For longer distances the best approach is to provide control over a second twisted pair using RS422 control.
Can I achieve my application using fiber?
If it can be done with copper, it can be accomplished using optical fiber. When connecting IFS interfaces to other equipment, the topology of the system must be legal as far as the equipment manufacturer is concerned. Once that’s determined, IFS fiber optic interfaces, along with fiber may be considered as a one-for-one, totally transparent substitute for copper.
How far can I run copper before I get to the fiber interface?
The copper distances should be kept as short as possible. If electrical noise gets into a system, a fiber application could perform worse than if copper were used throughout. Since the attenuation through copper is about 3.5 dB per 100 feet, noise that enters a system that is entirely copper has a good chance of being attenuated to a level that can’t be detected by the receiver. On the other hand, the same system that is partially copper and partially fiber can be disrupted by noise. Since the attenuation in fiber is only 3.5 dB per kilometer, any noise that enters the system through the copper is basically in to stay. Once the noise makes it to the fiber transmitter, you get everything back at the receiver -- noise and signal
Do 1/3" cameras need a 1/3" format lens and 1/2" cameras need a 1/2" format lens?
Yes. However, you can also use larger format lenses on smaller CCD cameras. Example: A 1/3" camera will take a 1/2" or 2/3" format lens. A 1/2" camera will also take a 2/3" format lens.
What are the common sizes of CCD imager in CCTV cameras?
The most common sizes are 1/3" and 1/2".
What does the F/ number represent in the lens specifications?
The F/ number represents Aperture Ratio. It tells you a ratio between the maximum and minimum iris opening. Auto Iris lenses adjust according to changing light conditions.
What does the focal length (in millimeters) determine?
The focal length determines what you will see on the monitor. This is called Field of View and is expressed in degrees. Example: A 4mm 1/3" lens will give you 63 degree of horizontal field of view; an 8mm 1/3" lens will give you 34 degree field of view.
What is a vari-focal lens?
A vari-focal lens has the ability to change focal lengths much like a zoom lens. However, there are two major differences between a vari-focal and zoom lens. The most vari-focal lenses are more compact in size and they do not have the ability track (maintain focus while changing focal lengths).
What is a Video Auto Iris lens?
A Video Auto Iris lens has a little amplifier built in which responds to the amount of ambient light and will open or close the iris automatically to maintain the same amount of light coming into the CCD imager. This allows the picture to not become too bright or too dark
What is a zoom lens?
Zoom lenses have the ability to change focal lengths much like a vari-focal. However, they differ in many ways from a vari-focal. A zoom lens typically offers a wider range of focal lengths and is physically larger than vari-focal. They can be purchased in Manual, 3-motor type, and Auto-Iris versions. They also have the ability to track (maintain focus while changing focal lengths) and can be operated remotely. Some motorized zoom lenses also offer a Pre-Set ability for the zoom, focus, and iris functions.
What is the advantage in using a DC Auto Iris lens?
DC Auto Iris lenses generally cost less since they do not have an amplifier, only driving coils for iris.
What is the function of the lens iris?
The iris is the mechanism which allows more or less light into the lens by the opening and closing of the iris leaves.
What is the typical exposure time for my Lumenera Network camera?
The maximum available exposure time varies with each camera type. Typically the cameras operate within 0 to 50 ms. In low light conditions the exposure rate might increase up to 500ms. An auto iris lens is recommended if using the camera outdoors.
What factors can cause the image quality to vary?
There are two primary factors that affect the image quality of the cameras. The camera auto-exposure algorithm adjusts the exposure rate and gain of the image to accommodate for lighting conditions. Low light settings cause the camera to increased the gain and exposure which leads to increase image noise and blur. The camera uses a JPEG compression algorithm to compress the images transferred over the network, and depending on the compression ratio used, you might see a variation in the image quality.
What is the power requirement for the Lumenera Network camera?
The camera will accept AC or DC voltage sources in the range of 12-24V. The camera power consumption is 4W max. The specifications for the voltage input are as follows: If using DC power: * The DC power input is polar-independent If using AC power: * The input voltage should never exceed 26.4 VAC * AC power should conform to current electrical codes * Either side of the AC input should not be grounded and should be floating with respect to ground
How do I initially connect to the Lumenera Network camera if the default settings use DHCP but there is no DHCP server running on my network?
The DHCP fallback IP address is available on the camera if there is no DHCP server present. Add an IP address to your network connection that is compatible to the DHCP fallback (192.168.1.222) or the link-local (169.254.X.X) IP address. If there is a router or gateway between the camera and your computer, the DHCP fallback route should be used instead of the link-local route. In this case, the network device should be configured to work with the DHCP fallback route. An example for both cases would be: * DHCP fallback route: 192.168.1.1/255.255.255.0 * Link-local IP route: 169.254.0.1/255.255.0.0
How can I see if the Lumenera camera is turned on after the boot process and has a valid network connection?
The Link LED (green LED) of the camera remains lit as long as it has a working Ethernet connection to a network device or computer.
What happens when I turn on the Lumenera Network camera?
The Lumenera Network camera contains an Operating System (OS) that boots in a similar way to a desktop computer. When power is applied to the camera the Boot LED of the Ethernet connector turns orange. After one minute, this light disappears indicating that the camera is now ready for use. The Boot LED will also turn on when upgrading the camera software. If the camera is set to dynamically obtain its' IP address from a DHCP server, the camera should be connected to the LAN when power is applied. The camera sends a DHCP request during its' boot process to obtain an IP address. In the case that a DHCP request is not returned, the camera defaults to its' DHCP fallback IP address. The factory default for this address is 192.168.1.222
How do I securely access the Lumenera Network camera over the Internet?
The camera, as shipped, does not have the security required to directly place it onto the Internet and therefore should be placed behind a firewall. Port 8080 is configured on the camera as a web-server that does not allow administrative privileges. Make this port available externally from the network to allow access to the camera over the Internet. An example of the HTTP connection would be http://camera_ip_address:8080. You can gain administrative access to the camera using a secure shell. Make SSH port 22 on the camera externally accessible from the network. It is recommended that the network administrator should add/change their own password and/or the camera administrative password to protect the camera on the Internet. To access the camera externally, a computer on the camera's network should run SSHD. SSHD will listen for incoming SSH requests and facilitate an SSH connection. An example camera connection command using SSH is: ssh -L 8000:camera_ip:80 sshd_computer where: * camera_ip is the camera IP address * sshd_computer is the name of the computer running SSHD. Once an SSH connection is established, you can connect to the camera's administrator page by typing http://localhost:8000/admin.html into any web browser's address field.
Does the price on the website include VAT?
No, all prices are excluding VAT. For the intracommunity (EU) sales the payment will be without VAT. Only the Italian sales are with VAT. Italian customers will see the VAT cost on Shipping Cart automatically added to total cost.
Does the price on the website include DELIVERY COST?
YES, all Netto prices are inclusive of worldwide shipping costs!
Nettosecurity BUSINNES to BUSINNES, what does it mean?
Businnes to Businnes means that Nettosecurity sells products to Installers and System Integrator. The customers have to register to Nettosecurity web site and specify the CORPORATE NAME - COUNTRY and VAT NUMBER.
What is the difference between C and CS mount lens?
C and CS-mount lenses are both threaded lens mounts found on most industrial CCD cameras and lenses. The difference between C and CS-mount equipment is the distance between the flange of the lens (the part of the case that buts up against the camera) and the focal plane of the lens (where the CCD sensor must be positioned). This is known as the flange back distance. On C-mount lenses, this is 17.52mm and on CS-mount lenses it is 12.52mm. Therefore, if you have a CS-mount camera and a C-mount lens, you can add a 5mm spacer to obtain the correct focus. If, however, you have a C-mount camera and a CS-mount lens, correct focus cannot be achieved.


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