What is an intercom system?

The intercom system is a dialogue system between the residents of the residential area and foreign visitors, which is of great significance to the standardized management of the community and the security of the community. With the improvement of residents' living standards, the management of the community is becoming more and more standardized and rigorous. The community intercom system can fully improve the simplicity and convenience of management. At the same time, the pace of life of residents is accelerating, the time for mutual visits between relatives and friends is reduced, and the intercom system can give full play to the important role of security.

The intercom system is a kind of intercom function realized by using the data channel of the GSM or CDMA network. It is a half-duplex cluster communication method that can realize the "one-to-one" and "one-to-many" functions. It can be applied to industries such as city, transportation, railway and logistics dispatching.

The intercom system is mainly composed of host, extension, UPS power supply, electric control lock and door closer. According to the type, it can be divided into direct-press, digital, digital household communication, direct-press video intercom, digital visual intercom, digital household video intercom, etc.

Underbody Structural Parts Of Rail Car Body
Most of the structural parts in this category are small, medium and large parts, which are mainly installed at the bottom of the car body to improve the bottom structure of the car body. All of them are metal products, and the materials are mostly aluminum alloy and stainless steel. They are painted or coated according to requirements The company is the source manufacturer, non-standard customization, most of the products can be customized in size and shape.

Jilin Zexin Industrial Development Co., Ltd. was founded in 2001 with a registered capital of 5 million RMB and is a high-tech enterprise in Jilin Province. There are about 100 employees, and the company's sales volume reached 20 million RMB in 2022. The company has more than 30 sets of various equipment including 2 NC laser cutting machines, 6 NC machining centers, 8 welding machines for different purposes, NC cutting machines, NC bending machines and others. After more than 20 years of construction and development, it has formed a comprehensive enterprise of electrical system, carbon steel, stainless steel and aluminum alloy stamping, welding, machining and surface coating. The company has passed the ISO9001:2015 quality management system certification, EN15085 CL1 welding system certification, American standard AWS welding certification, and ISO/TS22163:2017 quality management system certification. It is a high-quality supplier cooperated by CRRC Changchun Railway Vehicles Co., Ltd., the core manufacturer of China's urban rail transit equipment and high-speed train.
Underbody Structural Parts Of Rail Car Body,Single Hole Single Tube Buckle,Single Hole Double Tube Clamp,Large Metal Reinforcement Board
Jilin Zexin Industry Development CO., LTD. , https://www.jilinzexin.com