First you learn the difference between a splitter and an allocator, then you know which one to use.In CATV system, both the splitter and the splitter are used to distribute signals. The difference between a branch and a distributor is that no matter how many branches there are, there is one main out

A branch splitter is a passive device for power distribution of high frequency broadband signals. Its bandwidth has now reached 5-1000MHz, its simple structure, low price, work without power supply, widely used in the field of HFC cable TV. Devices are divided into indoor and field-type structure to

The general procedures for handling submarine cable incidents are as follows:1. The spread spectrum time domain reflectometer (SSTDR) is also used to locate the fault location. The instrument uses the principle of time-domain reflection. It transmits and receives a set of signals first, because a ca

Optical fiber optical communication can not be separated from the contribution of Chinese engineer Gao Kun, he first theorized in 1966 that glass fibers could be used in communications as a medium for light transmission, "The main cause of signal loss is the impurity of the material, not the glass i

In shipping, the difference between inside loading and trailer, that is, the difference between inside loading and production loading.Inside loading is the shipper to the warehouse, the warehouse is responsible for receiving goods, arrangements for empty boxes, containers, into the port.You said tha

The manifest is carried out by the customs in November last year. No matter what the shipping company, it must be issued. It is required by the general administration of customs. Now find freight forwarders or shipping agents to send the general fee of 50 RMB or 100 RMB per ticket.Export to foreign

Most people get Fluke test reports in hard copy or PDF files, often ignoring the most valuable test data, the paper version of the test report or the PDF version of the test data can basically see only the test results, pass or fail, and a very small portion of the test data (less than 1% of all the

In the import and export trade by means of letter of credit settlement accounts for the majority of international trade settlement. So what exactly is a letter of credit? To do what? How to use it? Letter OF CREDIT (L/C) is a guarantee in favor OF the seller made by the issuing bank at the instructi

With the increasing demand for product quality and safety, SDS test report has gradually become an important product quality test standard. SDS stands for"Safety Data Sheet" and is usually translated as"Safety Data Sheet". However, many people are confused about whether SDS is a certificate or a rep

Once the LABA Festival passed, the Spring Festival came one after another. It's been an extraordinary year, which makes the upcoming reunion all the more precious and exciting.Chinese New Year is the most ritualistic moment in the hearts of the Chinese people, and it is also a massive national pilgr