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OK. The difference between the monitoring cable and the network cable is that the function is not the same
1. The monitoring line is a kind of wire and cable used to connect the security surveillance camera and the real terminal (computer or monitor, etc.), and its function is to transmit the image data taken by the surveillance camera.
2, the monitoring line is very widely used, and at the same time closely related to our lives, we in the community, work in the office building, street entrance and so on, you can see the surveillance camera, of course, behind the monitoring line. Therefore, it is the monitoring line that provides us with a good security guarantee.
3. The network cable is used to connect to the local area network, which is characterized by being cheap, so it is widely used.
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Conventional connection: the general monitor should be connected to two wires, wires, which are general wires; **Wire, a dedicated coaxial cable type SYV75-5 or SYV75-3. There is also a moving point machine, which also needs a control line, which transmits 485 signals.
In principle, the twisted pair shielded wire of RVSP is generally used with a wire diameter of 2*. The transmission distance cannot exceed 1200 meters. It can also be replaced with a line of RVVP or RVV.
Twisted pair (network cable) connection: 4 monitoring head signals can be transmitted with ordinary network cables, twisted pair transmitters are required, divided into active and passive two, the former generally transmits no more than 300 meters, and the latter can reach 1200 meters. Short distance can be powered by one pair of network cables, and three pairs of three monitoring heads; It is also possible to power in parallel with two or three pairs to increase the distance.
Those with gimbals can be used as a pair of control lines.
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The network cable used by the security camera is generally the same as the home network cable.
1. The general network cable material is the same, and the general surveillance camera uses 8-core twisted pair cable, so this network cable can also be used on the computer at home.
2. The connection method of the crystal head is the same, and the general monitoring camera wiring is T568B, and the order is: orange-white, orange-white, green-white, blue-white, blue-white, green, brown-white, brown-white. This wiring method is a 100-megabit line sequence used by home computers.
3. Some monitoring network cables use a power cable, so the discarded power cable can also be used as an ordinary network cable at home.
4. If the camera is a coaxial cable, this cable cannot be called a network cable. This type of computer cannot be used in the home.
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The signal of monitoring transmission with network cable will be relatively stable, not easy to have problems in the network, now the monitoring covers a wide area, and it is more convenient to replace, there are advantages and disadvantages of each other.
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Analog surveillance camera using coaxial cable or network cable plus double hinged wire transmitter, network camera with network cable, now many indoor network cameras are equipped with wifi module, you can do not need to connect the network cable, directly connected to wifi.
The equipment used in network monitoring includes network cameras, network servers, etc., and you should be talking about network servers. Under normal circumstances, 75 ohm coaxial cable is used for transmission between the server and the camera, but due to the long transmission distance and the high cost of using coaxial cable transmission, network cable is used for transmission. However, due to the use of network cables to transmit the network cable itself and the transmission distance, due to the large attenuation, a twisted pair transmitter is used.
The computer connection is connected with the network cable and the network card of the device, if you want to use the same network cable, the network transmission uses 4, and the remaining 4 can be connected to 2 cameras.
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For the monitoring installation of whether to use network cables, it should be determined from the purpose of monitoring and the surrounding environment of installation!
1.Small home monitoring: generally using wireless connection, the biggest advantage is that the installation and commissioning is simple, can avoid cumbersome construction wiring, and is very beautiful!
The premise of this method is that the WiFi signal strength in the LAN of the installation area must be good. The disadvantage of this method is that the stability is not good, and it is easy to drop the picture, freeze, delay and instability, which increases the maintenance cost in the later stage.
2.Large-scale factory or school monitoring: generally use wired connections, and this connection is not only network cables, because the transmission distance of network cables is generally about 100 meters, more than 100 meters will appear signal attenuation and distortion, resulting in signal and instability, at this time will use optical fiber transmission and bridges.
Transmission, over long distances using fiber optics, through fiber optic transceivers.
The optical signal is converted into a network signal, and the network cable is used in close proximity, and the switch is used to connect to the camera! The biggest advantage of this method is that the monitoring picture is stable, the clarity is higher, it is convenient to manage in batches, and the later maintenance is less, and the disadvantage is that the construction cloth is more difficult, and the early construction period is longer.
3.Ultra-long-distance monitoring: this kind of monitoring generally adopts GPRS traffic transmission, this method can be used for ultra-long-distance transmission and construction wiring is very difficult place, generally in some high-speed intersections to temporarily use the camera can be used in this way, the installation is simple and the signal is stable, and the later maintenance and debugging is also very easy.
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You don't need a network cable to install monitoring, but if you want to see some monitoring content on your phone, you need to install a network cable.
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To install the monitoring head, use a monitoring cable.
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Now monitoring can also have wireless monitoring and mobile phone connection.
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Now there are some surveillance cameras that don't need network cables. It's called wireless surveillance.
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If you simply install a camera, you can also use a network cable.
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If you want to install monitoring, you need to pull a network cable, or you can connect through a wireless network.
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If it's the kind of wired surveillance camera, it does require a network cable, unless it's a wireless camera.
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Summary. Hello dear <>
Which is the best monitoring effect between monitoring with network cable and monitoring without network cable? 1. The installation or movement of wired cameras requires construction wiring, and the building wall of the installation site is changed when setting; 2. Wireless monitoring can be moved regardless of whether it is in the first place, and the installation is also very simple, and the monitoring location can be changed at any time; 3. Wired monitoring can only be accessed and viewed through the computer, and the scope of use is limited; 4. In addition to the computer, wireless monitoring can also be connected and controlled by mobile phone, which is convenient to view at any time; 5. The wired monitoring transmission picture is stable and fast, and the wireless monitoring transmission screen will be affected by the signal. 6. When the signal is stable, the picture transmitted by wireless monitoring is consistent with the effect of wired monitoring; 7. It is better to choose wireless monitors for home use.
Which is the best monitoring effect between monitoring with network cable and monitoring without network cable?
Hello dear <>
Which is the best monitoring effect between monitoring with network cable and monitoring without network cable? 1. The installation or movement of wired cameras requires construction wiring, and the building wall of the installation site is changed when setting; 2. Wireless monitoring can be moved regardless of whether it is in the first place, and the installation is also very simple, and the monitoring location can be changed at any time; 3. Wired monitoring can only be accessed and viewed through the computer, and the scope of use is limited; 4. In addition to the computer, wireless monitoring can also be connected and controlled by mobile phone, which is convenient to view at any time; 5. The wired monitoring transmission picture is stable and fast, and the wireless monitoring transmission screen will be affected by the signal. 6. When the signal is stable, the picture transmitted by wireless monitoring is consistent with the effect of wired monitoring; 7. It is better to choose wireless monitors for home use.
The biggest difference between wireless monitoring and wired monitoring is that wired monitoring needs to be connected to a network cable to connect to the Internet, while wireless monitoring only needs to be connected to wifi or install a 4G card. Wireless monitoring is suitable for indoor with stable signal; Wired monitoring is more suitable for areas with unstable signal reception, such as elevators, highways, and so on.
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The installation of surveillance cameras at home only requires a wireless network environment, and does not require a network cable. After the installation of the home surveillance camera, according to the operation method of the manual, you can directly connect to the wireless network at home and start using it.
How to use the webcam:
Take the Mi Home camera as an example, open the Mi Home version, log in, click the + in the upper right corner of the home page, click the camera, select the device model, and operate according to the prompts on the page.
Precautions for the use of the camera chain:
1. When installing the camera, pay attention to the shooting angle, and do not have obstacles nearby.
2. The IP camera cannot work, it may be caused by network abnormality, you can restart the router or reset the router.
3. The general camera has a variety of ways to install the shed, which can be installed as needed, such as on the desktop and wall. <>
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1. The difference in function
The line is the network cable in the monitoring, which is generally mainly transmitted by the network signal, and the analog signal converted by the twisted pair transmitter; We can see surveillance cameras in the community, in the office building where we work, at the entrance of the street, etc., of course, with the monitoring line behind. The network cable is used to connect the local area network, such as our common ** line. It is used to connect to the RJ45 head.
2. The difference on **
The characteristics of network cables are cheap, and the common network cables in the LAN mainly include twisted pairs, coaxial cables, and optical cables. A twisted pair is a data transmission line that consists of many pairs of wires. **line** is slightly higher than the network cable.
3. Difference in transmission distance
The network cable cannot transmit more than 100m of network signal. Twisted pair: When the horizontal cable is used as a data transmission, the permanent chain lacks a wax mold path of no more than 90 meters, and the channel does not exceed 100 meters.
Coaxial cable: 75-7 coaxial cable is about 200-250 meters, 75-5 is about 100-150 meters.
**Line transmission analog signal, 75-5 as an example, the transmission distance can reach 800m (no interference), the transmission of SDI signal requirements is relatively high, and the middle can not have a joint transmission of about 120M.
4. The method of using the line is different
5. The application is different
Network cables are mainly used in data transmission, classified copper cables, twisted pairs, coaxial cables, optical cables, used in computer network wiring, wiring, wire used to transmit signals, is coaxial cable, used in class equipment.
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The monitor network cable connection is as follows:
First, first of all, make an 8-core network cable. In the order shown in the figure below, arrange the 8-core network cables, especially pay attention to the corresponding "6" green line and "3" white line in the figure.
2. Insert the 8-core network cable made in the appeal step into the crystal head, and insert the crystal head in turn according to the order arranged in the previous step, noting that the shrapnel should be below and the 3-core network cable should be above, as shown in the figure below.
3. The 8-core network cable at the camera end is connected according to the position shown in the figure below, that is, one end of the network cable is connected to the terminal at the end of the camera, and the other end is vertically through the plastic pipe.
Fourth, the 8-core network cable at the end of the video recorder is connected according to the position shown in the following figure, that is, one end is connected to the terminal that comes out of the monitoring head in the previous step, and the other end is connected to the video recorder, pay attention to the connection not to loosen.
Fifth, one end of the video recorder is connected to the power cable, the other end is connected to the display, and then check whether the network cable at each interface is through, the connector is firm and not loose, as shown in the figure below, the entire monitoring system is connected, and the display can produce an image.
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Digital monitoring connection method.
Surveillance host - > network cable - > surveillance camera.
Or monitor the host - > network cable - > switch - > network cable - > the security camera crystal head connection.
The same is true for both heads.
Please make them in the following order.
Orange and white, orange, green and white, blue, blue and white, green, brown and white, brown and brown are recommended to use a network cable tester to test it.
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