RJ45 is mainly used for network interface between devices and components, and cabinet, system and subsystem of the cohesion and the role of signal transduction, is widely used in various fields, commonly used in aviation, aerospace, military equipment, car industry. Now the connector category is more, in order to improve the reliability of the connector, the connector is selected correctly very important.
When selecting RJ5 network interface, the primary reference is its own electrical parameters, because electrical parameters are related to the performance of RJ45 network interface, and RJ45 itself is also the main electromechanical component connecting electric circuit.
The non must think about is the extra voltage, additional voltage is also known as the operating voltage, usually refers to the maximum operating voltage, manufacturer identification, mainly affected by the insulation materials used in connector and touch on the distance between the distance, if components and equipment is lower than the additional voltage, so may not be able to completely use the all the functions, so the factors must be considered, although many connectors produced less additional voltage still can work normally, but this element still can not be ignored.
If it is not the effect of additional voltage, then the RJ45 electric network interface pressure target, namely the dielectric strength is one of the essential elements of the demand. Because of the same target voltage, if the use of environmental and safety requirements vary, so the maximum operating voltage is different. So even with the use of the environment, the security level is selected reasonable additional voltage, or also need to consider the pressure, the highest value to determine the additional voltage.
In addition to considering additional voltage, extra current also need one, consider the general target, below the additional current situation, RJ45 network interface can be normal use. However, in the planning process, in order to satisfy the request for additional current, using thermal gauge on the interface of RJ45 network is to be after, because of the current flowing through the touch when will there conductor resistance and resistance to touch, touch will be fever, when the touch of heat will be beyond the limit, it will damage the insulation and a touch of softening, surface coating on its formation problems. In order to reduce these problems, additional current demand, so the internal temperature will not exceed the specified value Shengcai planning in the selection of RJ45 network interface. Therefore, in order to ensure its reliability, extra current thinking need more than an extra voltage. If not, is the selection of the multi core RJ45 network interface, also need to Choose the reduction method for the extra current.