The Security Height Road Blockers has lift height options of 353mm & 533mm, with widths up to 5m. Blocker Hydraulic Blocker,Rising Blocker,Security Blocker,Automatic Blocker RS Security Co., Ltd. , http://www.rsteco.com
Road Blockers provide higher levels of security with built in stopping power, and are used extensively for premises such as banks, embassies, bullion depots, cargo parks, ports and lorry parks.
100% duty rating - designed for continuous and frequent use. Power is supplied from a three phase 400V power supply as standard.
The Road Blocker can be interfaced to any Access Control systems. Traffic Light System included as standard. It is recommended that the Road Blocker's hydraulic control cabinet is installed within 10metres of the blocker.
Digital video transceiver advantages analysis
The development of video optical transceivers in China is accompanied by the development of monitoring. Video optical transceivers are devices that convert one to multiple analog video signals into various optical signals and transmit them through optical fiber media. They are also divided into analog optical transceivers and digital optical transceivers. .
1. Appearance, reasonable structure
The digital video transmitter and receiver has a high technical content. The appearance of the digital video transmitter and receiver should be compact and exquisite, and the overall structure must meet the requirements of the engineering installation as much as possible. In addition to the 19-inch cabinet, general indoor digital video transceivers should also be able to take into account the need for the projector to be placed on the desktop or wall in the project. In addition, digital video transmitters must also have good thermal performance and electrical contact performance.
2, rich interface, reasonable layout
In addition to requiring sufficient video interfaces, digital video transmitters may also require or may require other interface with rich functions, such as high-fidelity audio interfaces, telephone interfaces, asynchronous data interfaces, Ethernet interfaces, and digital interfaces, etc. The selected digital video optical transceiver must have system upgrade capability so that it will not completely replace the device due to network upgrade or system function change, thereby protecting the user's upfront investment.
There are many kinds of digital video optical transceiver interfaces, and there are a large number of interfaces. There may be some modes to set the dial switch. The user interface formed by all these elements should be reasonably laid out, and there should be considerable operating space between the interfaces to facilitate the installation of the project. And maintenance. For example, the video interface is too intensive, and in actual applications, an awkward situation in which a normal video connector must be removed to repair a certain video connector appears.
3, the indicator light clear, easy to open and maintain the project
In order to facilitate the opening of the project and the maintenance of the project, the digital video transmitter and receiver shall be marked with clearly defined indicators. In addition to the power indicator, the transceivers of the digital video transmitter and receiver must all have video indicators to indicate whether the corresponding video channels have input or output of video signals. Engineers and users can use the video in the engineering startup phase and project maintenance phase. The indication of the video indicator, judging the situation in the opening and maintenance, locating the fault point, and solving the possible problems as soon as possible.
In addition, for the audio and data sections, corresponding indicators should also be provided. The simple way is to refer to the telecommunication equipment's practice and provide the synchronization indicator and the loop indicator. According to this, the engineering personnel and the equipment manufacturer can judge whether the equipment system is faulty or the interface part is faulty, so as to make a correct response.
For Ethernet interfaces, connection/activity indicators, full/half duplex indicators, and 10M/100M indicators should be provided in accordance with the general requirements for data communications equipment. Digital video transmitters should also provide system indicators to indicate whether the sending device is normal and whether the receiving device is normal. This is to make it easier for engineers to distinguish between equipment failure and fiber link failure.
Lightcom is committed to optical fiber communications; research and application in the field of fiber optic monitoring, independent research and development of own-brand LC monitoring digital optical transceivers, fiber optic transceivers, telephone optical transceivers, PDH optical transceivers, and has independent intellectual property rights (including core technologies. Widely used Safe City,*, Transportation, Education, Medical, Finance, Electric Power, and other industries; Continuous innovation on the basis of in-depth understanding of the needs of industry users, to provide users with professional end-to-end optical fiber transmission solutions.