We know that optical modules can be divided into single-mode optical modules and multimode optical modules are usually marked on the module. Single mode to SM, for long-distance transmission, fiber color is yellow; multi-mode is MM, usually used for short-distance transmission, fiber color is orange

In terms of performance, industrial Ethernet switches and ordinary switches are not much different. From the network level, there are two switches, of course, there are three switches. Industrial Ethernet switch has a stress in its product design and component selection, which meets industrial field

1.Uplink and downlinkADSL (Asymmetric Digital Subscriber Loop) technology is a kind of technology that uses an asymmetric digital subscriber line to achieve broadband access to the Internet. ADSL as a technology of transmitting layer, takes full advantage of existing copper wire resources, offers th

Coaxial cable and fiber optic cables are all widely used in network and communication as transmission medium. Both of them have similar appearance but different formation in structure. To tell one from another, you have to get familiar with the structures of them. And apart from the structure, they