What do the weak current legends T0, TP, VP and MR represent respectively?

TP stands for telephone;

VP stands for dual-hole socket of cable TV and IP TV;

MR stands for metal tank.

1 Generally speaking, the weak current system will be composed of different systems on different occasions:

The hotel's weak current system consists of automatic fire rescue system, monitoring video system and central air conditioning system, while the weak current system in wireless city consists of management garage, access control system and the above management system. Therefore, the weak current system will be different for different occasions. The article refers to the weak current system in public places, and its composition can be divided according to functions, including safety prevention system and automatic control system.

2. Security system:

Indoor part: an indoor safety protection system composed of several subsystems, which can not only ensure the indoor safety of public places, but also transmit indoor related information to the designated dispatching command center. Usually, indoor security system consists of door and window management system, emergency rescue system, fire alarm system and indoor monitoring system.

Outdoor part: the outdoor security system is mainly to protect the surrounding safety of public places and monitor all monitoring facilities in the whole public place. It usually consists of security patrol system, infrared alarm system and outdoor monitoring system.

3, automatic control system:

In public places, not only indoor and outdoor security systems are needed, but also multiple automatic control systems are needed to provide automatic control for major equipment systems. Generally speaking, automatic control systems are widely used in public places, mainly lighting systems, fire safety systems, broadcasting systems, power supply systems and drainage systems.

Extended data:

1. The problems existing in the weak current system are: the management and maintenance of the weak current system are not scientific and systematic; Insufficient management and maintenance personnel for equipment and materials; Acceptance defects.

2. Solution: Strictly control the quality of materials; Do a good job in the unified deployment and documentation of a subsystem construction time; Verification of construction quality.

3, according to the use of protective grounding and functional grounding. Protective grounding is divided into: anti-electric shock grounding, lightning protection grounding, anti-static grounding and anti-electric corrosion grounding; Functional grounding is divided into working grounding, logic grounding, shielding grounding and signal grounding. Different grounding has different requirements, and the grounding structure should be decided according to the design.

Baidu encyclopedia-weak current system