German WISKA Hoppmann + Mulsow plug WISKA Hoppmann + Mulsow model WISKA Hoppmann + Mulsow price

WISKA Hoppmann + Mulsow plug is a connector used to connect serial and parallel cables to a data bus. The naming format for data bus connectors is DB-x, where x represents the number of wires inside the connector. Each wire is connected to a pin in the connector, but in many cases, not all pins are assigned a function. Data bus connectors are defined by various EIA/TIA standards. It is a type of connector used to connect serial and parallel cables to a data bus. DB connectors are named in the DB-x format, where x represents the number of (wires) inside the connector. Each wire is connected to a pin in the connector, but in many cases, not all pins are assigned functions. DB connectors have 9, 15, 25, 37, and 50 pin sizes. DB connectors define the physical structure of the connector, not the purpose of each wire. For example, DB-9 has 9 pins and is used to connect a mouse. DB-25 has 25 pins and is used to connect a printer.

WISKA Hoppmann + Mulsow plug introduction

Fieldbus technology is the intersection and integration of control, computer, and communication technologies, covering almost all continuous and discrete industrial fields, such as process automation, manufacturing and processing automation, building automation, home automation, and so on. The development of fieldbus technology is reflected in two aspects: one is the continuous development and improvement in the field of low-speed fieldbuses; the other is the development of high-speed fieldbus technology. Fieldbus products are mainly low-speed bus products, applied in fields with lower operating rates, where the requirements for network performance are not very high. From the perspective of actual application, most fieldbuses can achieve process control with lower rate requirements quite well. Therefore, in control fields with lower rate requirements, it is difficult for any single entity to unify the entire market. Since the FF Foundation has concentrated most of the world's major automation instrument manufacturers, its global influence is increasing day by day, but its marketing efforts in China seem insufficient, and its market share is not very high. LonWorks has formed a comprehensive system of division of labor and cooperation, achieving some substantive progress domestically. In areas such as building automation, home automation, and smart communication products, LonWorks has unique advantages. In the field of discrete manufacturing and processing, due to the characteristics of industry applications and historical reasons, Profibus and CAN have established their own advantages in this field and possess strong competitiveness. Domestic manufacturers are relatively small in scale and have weaker R&D capabilities, relying more on support from technology suppliers. They are easily influenced by the level of support and marketing efforts provided by fieldbus technology suppliers (such as chip manufacturers) in the domestic market. Moreover, there is another point that cannot be ignored: when building an automation management system, the degree of support provided by the selected host computer software, such as configuration software, for bus devices is crucial. Some monitoring and configuration software, such as KingView monitoring and configuration software or InTouch, provide good support for some mainstream bus devices such as Lonworks, PROFIBUS, and CAN. They communicate and collect data through DDE, OPC, or direct connection methods. This facilitates user selection, whereas some configuration software supports fewer types, thereby reducing the range of choices for users.

WISKA Hoppmann + Mulsow plug features

1) Physical characteristics: Physical characteristics, also known as mechanical characteristics, refer to some properties exhibited by components on the bus during physical connection, such as the geometric dimensions, shape, number of pins, and arrangement order of plugs and sockets. 2) Functional characteristics: Functional characteristics refer to the function of each signal line, such as the address bus used to represent address codes. The data bus is used to represent transmitted data, and the control bus represents commands, status, etc., for operations on the bus. 3) Electrical characteristics: Electrical characteristics refer to the signal direction on each signal line and the voltage level range representing valid signals. Usually, signals sent by the master device (such as CPU) are called output signals (OUT), and signals sent into the master device are called input signals (IN). Typically, data signals and address signals define high level as logic 1 and low level as logic 0. There is no customary convention for control signals; for example, WE indicates active low, and Ready indicates active high. There is no unified regulation for the high and low voltage level ranges of different buses, usually consistent with TTL. 4) Timing characteristics: Timing characteristics, also known as logical characteristics, refer to when signals on each signal line are valid during bus operations. Through this agreed-upon timing relationship of signal validity, correct bus operation is ensured. To improve computer scalability and the universality of components and devices, apart from internal chip buses, various components or devices adopt standardized forms to connect to the bus and implement information transmission on the bus in a standardized manner. These standardized connection forms and operation methods of the bus are collectively referred to as bus standards. Examples include ISA, PCI, USB bus standards, etc. Correspondingly, buses adopting these standards are ISA bus, PCI bus, USB bus, etc.

WISKA Hoppmann + Mulsow plug safety parameters

1) Insulation Resistance: Insulation resistance refers to the resistance value presented by leakage current generated within or on the surface of the insulating part of a connector when voltage is applied to it. It is mainly affected by factors such as insulating materials, temperature, humidity, and contamination. The insulation resistance values provided in connector catalogs are generally indicator values 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. According to Insulation Resistance (M MΩ) = Voltage Applied to the Insulator (V V) / Leakage Current (μ A A), applying different voltages yields different results. In connector testing, the applied voltages generally have three levels: 10V, 100V, and 500V. 2) Rated Voltage: Dielectric strength is the critical voltage that the mutually insulating parts of a contact pair, or the insulating parts and ground, can withstand for a specified time without breakdown, which is higher than the rated voltage. It is mainly affected by the spacing and creepage distance and geometric shape of the contact pairs, insulator materials, as well as environmental temperature, humidity, and atmospheric pressure. 3) Mechanical Life: The mechanical life of a connector refers to its mating 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 the 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 according to circuit requirements, while considering the volume of the connector and the magnitude of the total separation force. A larger number of contact pairs naturally results in a larger volume and a relatively greater total separation force. In cases where high reliability is required and 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 assembly. In actual use, selection can be made based on the live status at both ends of the plug and socket. For example, if the socket needs to remain live, choose a socket equipped with female contacts, because the live contacts in such sockets are embedded in the insulator, making them less accessible to human touch and relatively safer. The primary consideration is the electrical continuity of contact pairs during vibration, shock, and collision under specified frequency and acceleration conditions. Contact pairs may experience momentary open circuits under such dynamic stress conditions. The specified momentary interruption times are generally 1μs, 10μs, 100μs, 1ms, and 10ms. It is important to note how to judge whether a momentary interruption fault has occurred in a contact pair. Currently, it is considered that a fault in a closed contact pair (contact) can be determined when the voltage drop across both ends exceeds 50% of the power source electromotive force. In other words, there are two conditions for judging whether a momentary interruption has occurred: 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 separation of plugs and sockets, resulting in various connection methods for plugs and sockets. For circular connectors, there are mainly three connection methods: threaded coupling, bayonet coupling, and push-pull (ball-lock) coupling. Among these, threaded coupling is the most common, offering advantages such as simple processing technology, low manufacturing cost, and wide applicability, but the connection speed is slower, making it unsuitable for occasions requiring frequent mating and quick connections. Bayonet coupling has a faster connection speed due to the longer lead of its three bayonet slots, but its manufacturing is more complex and the cost is higher. Push-pull (ball-lock) 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-sized connectors.

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