Data transmission is not through fluctuating currents, but through pulsating light waves, using special optical fibers as the medium. From the output port of the fiber terminal block, you can see the red light. This is not a laser and it is not harmful to the human eye. Dirt and dust can hinder the transmission of light waves, so do not touch the connection port with your hands when you use it, and put a dust cap on the port when you are not using it. In addition, the fiber optic cable cannot be bent or twisted excessively, otherwise it will It is permanently damaged and cannot be used. Optical fiber terminals require two conversions of photoelectricity and electrical light, which will inevitably lead to loss, but optical fibers are not as susceptible to electromagnetic interference as copper wires, and can guarantee better transmission over long distances. The same component group is preceded by a letter. If you need to distinguish between them, you can use the numbers -5N, -2.5, and -16 to mark them.
Effects of appearance factors on terminal blocks: Terminal blocks play an important role in product appearance and affinity to users. Power terminal blocks must be convenient for field installation, because they are often installed at the front of product panels that are easy to see. In this way, marketers often want to have a certain say in the appearance of power terminal block products. In the preferred terminal series with a rated cross section to 10mm2, the crimping frame adopts a lifting barrel structure. Their working principle is based on the so-called "lifting cylinder principle". When the screw is tightened, the screw abuts on the conductor and moves the crimping frame upward, thereby making the wires of the crimping frame cling to the conductor and finally clamped. Due to the high contact force of the UK terminals, the wires can be embedded in the soft tin plating of the conductor. In this way, the transition resistance obtained on the 4mm2 terminal is only 0.3Ω, which is significantly lower than the minimum value required by the IEC947-7-1 / EN60947-7-1 standard. In this type of wire frame structure, the "Reakdyn- "Slot" to achieve self-locking screws. Increase the torque and tighten the screws, and the lifting cylinder will be elastically shaped. In order to adapt to the product's high temperature resistance, low temperature and flame resistance, the geometric dimensions of the parts are guaranteed to be stable and reliable.
Most terminal block insulators are molded from thermoset plastic. The interface sealing body and the sealing body are formed by silicone rubber molding and the like. Contact body——Pin socket is the general name of contact body, which is divided into welding type, crimping type and winding type, etc., and is used to realize circuit connection.
