Intertraffic Amsterdam is firmly rooted as the leading global business and government gathering on smart mobility, infrastructure, traffic management, road safety and parking. Join over 35,000 traffic technology and mobility professionals to learn, connect, and be inspired! WHEN&wHERE： RAI Amsterdam Europaplein 24 1078 GZ Amsterdam The Netherlands Tuesday 16 April 2024 09:30 – 17:30 hrs […]

APM is where over 15,000 like-minded peers in Asia including shipowners, shipyards, ship management, technical procurers and end-users will meet with 1,500+ exhibitors showcasing the latest solutions, services and technology that will drive maritime development in the new decade.

The outdoor intercom is a telephone device specifically designed for outdoor emergency calls. It can be wall-mounted or embedded, with easy and sturdy installation that ensures durability and an attractive appearance. The outdoor intercom features full-duplex two-way voice communication and complies with the internationally recognized SIP protocol. As a SIP intercom, it requires only one […]

In the context of increasingly prominent global environmental problems, the responsibility and role of enterprises in environmental protection have become increasingly prominent.Climate change and environmental protection are important parts of the global agenda. The international community has conducted extensive discussions on issues such as reducing greenhouse gas emissions, sustainable energy development, and protecting biodiversity.   […]

Where is the 4G version of the telephone used? In tunnels, highway construction, subway construction and other projects, communication equipment is an important part. It not only plays a role in daily communication, but also needs to ensure normal work in emergency situations. Many customers choose the 4G version of the weatherproof phone. Based on […]

In the spirit of Christmas, J&R Technology, extends warm wishes and heartfelt gratitude to its esteemed customers, both old and new. This festive season serves as a time of reflection, appreciation, and anticipation for a prosperous future. As the year draws to a close, J&R Technology takes this opportunity to express sincere appreciation for the […]

1. Determine the presence of environmental hazardous gases CLASSⅠ(Flammable Gases, Vapors or Liquids) Area Classification Division 1: Where ignitable concentrations of flammable gases, vapors or liquids can exist all of the time or some of the time under normal operating conditions. Division 2: Where ignitable concentrations of flammable gases, vapors or liquids are not likely […]

Oil pipelines are vital facilities for the transportation and delivery of oil and its derivatives, and emergency communication telephones play a crucial role in the oil pipeline system. 1. Emergency communication capability: Various emergencies can occur during the operation of oil pipelines, such as leaks, explosions, and fires. In these situations, timely communication is crucial […]

The Kozloduy Nuclear Power Plant Is A Nuclear Power Plant In Bulgaria Situated 180 Kilometres (110 Mi) North Of Sofia And 5 Kilometres (3.1 Mi) East Of Kozloduy, A Town On The Danube River, Near The Border With Romania. It Is The Country’s Only Nuclear Power Plant And The Largest In The Region. The Construction […]

Clean room communication systems play a crucial role in maintaining a sterile and controlled environment in clean room facilities. These systems should address specific technical problems to ensure effective communication while adhering to the strict cleanliness and safety requirements of clean rooms. Here are some technical problems that clean room communication systems should solve:   […]

When considering the technical aspects of prison phone systems, several key issues should be taken into account. These issues relate to the functionality, reliability, and security of the system. Here are some technical considerations: 1.Call Quality: The phone system should provide clear and reliable call quality to ensure effective communication between inmates and their contacts. […]

When designing and implementing a public telephone system in a subway, several technical problems should be considered to ensure reliable and efficient communication. Here are some common technical challenges specific to subway public telephone systems: 1. Signal Interference: Subways are typically located underground, which can introduce challenges related to signal interference. The presence of concrete […]

Introduction In the fast-paced and dynamic environment of a campus, effective communication plays a vital role in fostering a productive and safe learning environment. One powerful tool that facilitates seamless communication across the campus is the Public Address (PA) system. As a leading communication equipment manufacturer, we recognize the significance of PA systems in educational […]

The emergency intercom is a key component of elevators. In case of power failure, sudden stoppage of operation, or other emergencies, elevator passengers can rely on the intercom to contact the outside world, and maintenance personnel can also use the elevator intercom to realize multi-party communication between the monitoring center or the duty room, the […]

Telephone acoustic hoods are one of the common public facilities in people’s lives, and sound insulation materials play an essential role in telephone booths. Three principles of soundproofing material mainly includes three aspects: sound absorption, reflection, and isolation.   Sound absorption refers to the conversion of sound wave energy into other forms of energy for consumption. […]

The UK Has A World-Class Transportation Network, Both Between And Within UK Cities. With A Total Road Length Of Nearly 395,000 Kilometers, The UK Is Well Connected By Road Traffic. Freeways And A Roads Are Responsible For 65% Of Road Traffic.   Concept Formation In the 1960s, it was first applied on Australia’s highways, where telephone […]

Emergency phone tower Engineered to be a robust, completely wireless communication solution, the Advance Emergency Phone Tower is ideal for enhancing public security on college campuses，parking lots,transit stations.remote bike paths and trails，and anywhere where additional lighting and added safety and security are needed   Features 1.The latest LTE certified voice 2.Weather-proof,tamper-proof steel housing protects the […]

Graz-Karlau Prison Graz-Karlau Prison is located in Gries, the 5th district of the city of Graz, capital of the Austrian state of Styria. With a capacity of 552 inmates, Graz-Karlau is the third-largest prison in Austria. Women’s Prison Schwarzau Schwarzau Prison is the only criminal institution in Austria responsible for the execution of judicial custodial […]

J&R technology will participate in the Xinjiang Petroleum Equipment Exhibition from July 18 to 20, 2023, Beijing time. The oil and gas industry is not only an important pillar of Xinjiang’s industry, but also plays an irreplacable role in ensuring national energy security and serving the construction of the “Belt and Road”. With the in-depth […]