Security monitoring system wiring involves which cables?

The anti-surveillance system cabling design involves video surveillance lines, broadcast intercom lines, alarm lines, audio monitoring lines, and network lines. Their function is different, the choice cable type is not the same, Kexian cable tells everybody what kind of cable that the television monitoring system needs to involve:
1. The video transmission cable for camera video signal transmission cables is usually a 75-series thin coaxial cable. However, the attenuation of video signals varies with the coaxial cable of different cable diameters. The thicker the cable, the more attenuation the cable. small.
2. Camera power cord The power cord in the television monitoring system adopts separate cabling. The master switch is set in the monitoring room. Through the UPS power supply, the entire monitoring system is directly controlled. Under normal circumstances, the power cord is wired to the 220V AC, and the camera is terminated. The adapter is converted to DC 12V.
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3. Use video camera device with electric pan/tilt head and motorized lens Cable, video camera with electric pan/tilt head and electric lens, in addition to the above video signal cable and cable, also consider the transmission line between the on-site decoder and control center. Cables generally use two-core shielded communication cable (RVVP) or Category 3 twisted pair. The UTP core cross-sectional area is 0.3m~0.5m.
4. Alarm and sound monitoring cables The alarms and monitoring positions at the monitoring positions and corridors are generally 4-wire shielded communication cables (RVVP) or Cat. 3 twisted pair UTP. The cross-sectional area per core is 0.5m.
5. Broadcast and Intercom Cables When setting up broadcasts at the warehouses, corridors, factories, etc., the basic principle of cables is: the longer the distance, the thicker the cables. The basic communication distance stipulated by RS-485 communication is 1200 meters. In practice, the RVV-2/1.5 sheath line is used to extend the communication distance to 2000 meters. The length of the visual distance for broadcasting and intercom is different. Cable, twisted pair.
6. Computer Network Cables Computer network cables fall into two categories. One type of vertical trunk and optical fiber cables are used between buildings, and the other is a horizontal trunk line with 4 pairs of 8-core shielded Super 5 cables. Select 4 pairs of /8-core super shielded twisted pairs from the work area to the management room.

Matting Agent For Printing And Card Film

A Matting Agent for printing and card film is a substance that when added to the printing ink or applied to the card film, helps to create a soft, velvety, or matte finish on the printed material. This can be useful for creating a more aesthetically pleasing look, enhancing the tactile feel of the product, or reducing glare or reflection.
There are several types of matting agents that can be used in different printing processes and materials:
Silica Powders: Silica, particularly colloidal silica or Fumed Silica, can be used to reduce gloss. It works similarly to TiO2 but can offer a more even and smoother finish.
When choosing a matting agent, consider factors like the specific printing process, the type of substrate, the desired level of gloss reduction, and any environmental or safety considerations. It's often necessary to test different formulations to find the one that best meets the requirements of the final product.
For card films, you might also consider the flexibility, durability, and compatibility of the matting agent with the lamination process if applicable. The goal is to ensure that the matting effect enhances the overall quality and appeal of the printed material without compromising other important properties.

Matting Agent For Printing And Card Film

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November 22, 2024