How is the monitoring system arranged, and how many lines are worn by each line?

Detailed introduction of open and dark wires: the bridge design is reasonable to ensure the appropriate cable bending radius. When going up and down, left and right to bypass other trunkings, the turning slope should be gentle, and pay attention to whether the cover plate can be covered without crushing the cable after the cable at both ends is sagged and stressed.

For the cable with reel packaging, it is recommended to arrange at least one worker at each end to set the reel on the self-made cable rod, and the worker at the pay-off end first pre-pulls out a part of the cable from the reel box for the collaborator to extract at the other end of the pipeline, and the pre-pulled line can not be too much, so as to avoid multiple wires entangled and surrounded on the site.

After the end of the wire pulling process, the redundant cables left at both ends should be sorted out and protected, and the coil should follow the original direction of rotation when coiling, and the coil diameter should not be too small.

When arranging, binding, and placing cables, the redundant cables should not be too long, do not let the cables be superimposed under stress, the coils should be coiled along the trend, and the fixed ropes should not be too tight.

During the whole construction period, the process flow will be reported in a timely manner, the person in charge of each type of work will communicate well, notify Party A immediately if any problems are found, and complete the task of this type of work in a timely manner before the start of other follow-up types of work.

If an unshielded twisted pair cable is installed and the grounding requirements are not high, it can be grounded at the main line slot connected to the cabinet.

The specifications of the trunking are determined in such a way that the cross-sectional area of the trunking is 40% surplus for expansion, and the cross-sectional area of the super 5 twisted pair is a square centimeter.

When installing the trunking, attention should be paid to the isolation from the strong trunking. The wiring system should avoid walking more than 3 meters flat with strong current lines without shielding and with a distance of less than 20cm. If it cannot be avoided, the section of trunking needs to be shielded and isolated.

The cable conduit entering the furniture is lowered from the nearest ceiling trunking along the partition wall to the ground, and from the ground boring groove to the furniture partition.

1. There should be no burrs in the pipe groove transition and interface, and the line groove transition should be smooth.

2. If the pipe exceeds two elbows, the junction box must be left.

3. The installation of the wall-mounted bottom box should be more than 30 cm from the ground, and keep it at the same height and parallel to the other bottom boxes.

4. The line pipe is made of galvanized thin-walled steel pipe or PVC

I divide the monitoring system into three parts of construction, first, pre-embedding (including trenching, downpipe, hanging wire, wiring groove, etc.). Second, arrange the cables and install the equipment (including the installation of equipment in the computer room). Third, wiring, debugging and so on.

How is the monitoring system arranged, and how many lines are worn by each line?

The general surveillance camera needs two wires, one is connected to the power supply, and the other is connected to the DV** cable. If it is a spherical camera that can be rotated, three wires are required, one control lane line, and one ** wire are required to block this power loop. If the user is using a **power monitoring camera with wifi,There is only one power cord,Because the ** surveillance camera has a built-in memory card accompanying function,All**In addition to storing it in the memory card of Hongxun,It can also be stored in the cloud storage。

The link below shows a schematic diagram of a monitoring system.

The monitoring system line can be routed at the same time as the network, which is a weak current system and has no impact on the network.

If you use network cameras, you basically don't need wiring, all cameras are connected to the network, and at the same time, they get power nearby.

Hire a network cabling company, are you going to do it yourself?

The wiring design of the monitoring system involves the best monitoring lines, broadcast intercom lines, alarm lines, sound monitoring lines, and network lines. They have different functions and choose different types of cables.

The commonly used transmission cable is the thin coaxial cable of the SYV-75 series, but the attenuation degree of the coaxial cable of different wire diameters is not the same for the first signal, and the thicker the wire diameter of the cable, the smaller the attenuation, the more suitable for long-distance propagation. Select the cable as follows:

When the distance from the camera to the sub-monitoring center is less than 300m, SYV-75-3 can be selected;

When the distance from the camera to the sub-monitoring center is greater than 300m and less than 500m, SYV-75-5 can be selected;

When the distance from the camera to the sub-monitoring center is greater than 500m and less than 800m, SYV-75-7 or SYV-75-9 can be selected;

When the distance from the camera to the sub-monitoring center is greater than 800m and less than 1000m, SYV-75-12 can be selected;

The power cord in the TV monitoring system adopts separate wiring, the main switch is set in the monitoring room, and the power supply is passed through the UPS power supply to directly control the entire prison stool land control system, under normal circumstances, the power cord is wired according to AC 220V, and then converted to DC 12V by the adapter at the end of the camera. However, some cameras use 5V or 12V, 24V DC or 220V AC, and the power supply method is different.

Resources.