In the design, application, and selection process of fire automatic alarm systems, most people pay attention to the appearance, sensitivity, stability, and intelligence level of fire detectors, as well as the performance, interface, and functionality of the main unit… However, during actual engineering construction, there are some seemingly simple yet crucial aspects that require our … Read more
In the design, application, and selection process of fire automatic alarm systems, we often pay attention to the appearance, sensitivity, stability, and intelligence level of fire detectors, as well as the performance, interface, and functions of the control panel. However, during actual engineering construction, there are some seemingly simple issues that deserve our close attention. … Read more
In the field environment of Profibus, we use a variety of systems, and the devices we face interference from are diverse, so the sources of interference are also varied. Many failures caused by interference are more difficult to troubleshoot than other faults. Before troubleshooting interference failures, we need to understand the types of interference. In … Read more
In the field environment of Profibus, the systems we use are diverse, and the devices we are interfered with are varied, so the sources of interference are also peculiar. Many failures caused by interference are more difficult to troubleshoot than other failures. Before eliminating interference faults, we need to understand the types of interference. To … Read more
Basic Principles of Data Transmission Technology 1. Characteristic Impedance and Delay Characteristics Ideally, due to the in-phase relationship between the voltage and current of the resistive components, the input signal experiences no phase shift when passing through the resistive network, only inherent attenuation. In practical circuits, since cables do not possess purely resistive characteristics but … Read more