German ReSatron plug ReSatron model ReSatron price

ReSatron plug is the public communication backbone for transmitting information between various functional components of a computer. It is a transmission bundle composed of wires. According to the types of information transmitted by the computer, the computer bus can be divided into data bus, address bus, and control bus, which are used to transmit data, data addresses, and control signals, respectively. The bus is an internal structure; it is the common channel for cpu, memory, input, and output devices to transmit information. The various components of the host are connected via the bus, and external devices are connected to the bus through corresponding interface circuits, thereby forming the computer hardware system. In a computer system, the public path for transmitting information between various components is called the bus. Microcomputers connect various functional components using a bus structure.

ReSatron plug working principle

If the motherboard (Mother Board) is a city, then the bus is like the public buses (bus) in the city, capable of transmitting bits (bit) that operate back and forth along fixed routes. These lines can only be responsible for transmitting one bit at a time. Therefore, multiple lines must be used simultaneously to transmit more data. The number of data items that the bus can transmit simultaneously is called the width (width), measured in bits. The greater the bus width, the better the transmission performance. The bus bandwidth (i.e., the total amount of data that can be transmitted per unit time) is: Bus Bandwidth = Frequency x Width (Bytes/sec). When the bus is idle (other devices are connected to the bus in a high-impedance state) and a device needs to communicate with a target device, the initiating device drives the bus, issuing address and data. Other devices connected to the bus in a high-impedance state, upon receiving (or being able to receive) address information matching their own, accept the data on the bus. After the sending device completes communication, it releases the bus (output changes to high-impedance state).

ReSatron plug classification

Buses can be divided into five major types according to function and specification: Data Bus (Data Bus): Transmits data that needs to be processed or stored back and forth between CPU and RAM. Address Bus (Address Bus): Used to specify the address of data stored in RAM (Random Access Memory). Control Bus (Control Bus): Transmits signals from the microprocessor control unit (Control Unit) to peripheral devices. Expansion Bus (Expansion Bus): A bus for data communication between external devices and the computer host, such as ISA bus and PCI bus. Local Bus (Local Bus): Replaces expansion buses for higher-speed data transmission. Among these, the data bus DB (Data Bus), address bus AB (Address Bus), and control bus CB (Control Bus) are collectively referred to as the system bus, commonly known as the bus. In some systems, the data bus and address bus are multiplexed, meaning the signals appearing on the bus represent data at certain times and addresses at other times; while in other systems, they are separate. The address bus and data bus of the 51 series microcontrollers are multiplexed, whereas the buses in general PC are separate. "Data Bus DB" is used to transmit data information. The data bus is a bidirectional tri-state bus, meaning it can transmit data from CPU to memory or I/O interfaces and other components, as well as transmit data from other components to CPU. The bit width of the data bus is an important indicator of a microcomputer, usually consistent with the word length of the microprocessor. For example, the Intel 8086 microprocessor has a word length of 16 bits, and its data bus width is also 16 bits. It should be noted that the meaning of data is broad; it can be actual data, instruction code, or status information, and sometimes even control information. Therefore, in practical work, what is transmitted on the data bus is not necessarily only data in the strict sense.

ReSatron plug safety parameters

1) Insulation Resistance: Insulation resistance refers to the resistance value presented by leakage current generated on or within the surface of the insulating part of a connector when voltage is applied. It is mainly affected by factors such as insulation material, temperature, humidity, and contamination. The insulation resistance values provided in connector samples are generally indicators under standard atmospheric conditions. Under certain environmental conditions, the insulation resistance value will decrease to varying degrees. Additionally, pay attention to the test voltage value for insulation resistance. Based on Insulation Resistance (MΩ) = Voltage Applied to Insulator (V) / Leakage Current (μA), applying different voltages yields different results. In connector tests, the applied voltages generally have three levels: 10V, 100V, and 500V. 2) Rated Voltage: Dielectric strength is the critical voltage that the mutually insulated parts of contact pairs or the insulated parts and ground can withstand within a specified time without breakdown, which is higher than the rated voltage. It is mainly affected by contact pair spacing, creepage distance, geometric shape, insulator material, ambient temperature and humidity, and atmospheric pressure. 3) Mechanical Life: The mechanical life of a connector refers to its mating/unmating cycle life, typically specified as 500 to 1000 cycles. When this specified mechanical life is reached, indicators such as contact resistance, insulation resistance, and dielectric strength of the connector should not exceed specified values. Strictly speaking, mechanical life is related to time; using 500 cycles over 10 years is obviously different from using 500 cycles over 1 years. First, select the number of contact pairs based on circuit requirements, while considering the connector's volume and total separation force. A larger number of contact pairs naturally results in a larger volume and relatively greater total separation force. In cases with high reliability requirements where volume permits, two contact pairs can be connected in parallel to improve connection reliability. In connector plugs and sockets, pins (male contacts) and sockets (female contacts) are generally interchangeable. In actual use, selection can be made based on the energized status at both ends of the plug and socket. For example, if the socket needs to remain energized, choose a socket equipped with female contacts, because the energized contacts are embedded in the insulator, making them less accessible to human touch and thus relatively safer. Mainly consider the electrical continuity of contact pairs during vibration, shock, and collision under specified frequency and acceleration conditions. Contact pairs may experience instantaneous open circuits under such dynamic stress. Specified instantaneous interruption times generally include 1μs, 10μs, 100μs, 1ms, and 10ms. Note how to judge instantaneous interruption faults in contact pairs. Currently, it is considered that a fault in a closed contact pair (contact) is determined when the voltage drop across its ends exceeds 50% of the power source electromotive force. That is, there are two conditions for judging instantaneous interruption: duration and voltage drop, both of which are indispensable. Connectors generally consist of plugs and sockets, where the plug is also called a free-end connector, and the socket is also called a fixed connector. Circuit connection and disconnection are achieved through the mating and unmating of plugs and sockets, resulting in various connection methods for plugs and sockets. For circular connectors, the main methods are threaded coupling, bayonet coupling, and push-pull (ball-lock) coupling. Threaded coupling is the most common, offering advantages such as simple processing technology, low manufacturing cost, and wide applicability, but it has a slower connection speed and is not suitable for frequent mating/unmating and rapid connection scenarios. Bayonet coupling has a faster connection speed due to the longer lead of its three bayonet slots, but it is more complex to manufacture and has a higher cost. Push-pull coupling is the fastest among the three connection methods; it does not require rotational motion, only linear motion to achieve connection, separation, and locking functions. As it belongs to the straight push-pull connection method, it is only suitable for connectors with low total separation force. It is generally more common in small connectors.

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