A6: High-temperature environment (≥85℃): Choose high-temperature resistant materials (such as PPS, PA9T shell, silver-plated/gold-plated contacts), avoid using ordinary PVC cables to prevent shell deformation and contact oxidation; Low-temperature environment (≤-20℃): Choose shell made of low-temperature resistant elastic materials to avoid cable stiffness and breakage, prefer low-temperature resistant connectors, and ensure interface sealing to prevent condensed water from entering and causing failures.

A7: The plugging life of ordinary industrial connectors is 1000-5000 times, and high-quality connectors can reach more than 10000 times (such as military grade). Methods to extend service life:

① Align the interface when plugging and unplugging, avoid forced plugging and unplugging or rotating plugging and unplugging;

② Regularly clean dust and oil stains on the interface to keep the contacts clean;

③ Avoid the connector being in a state of tension and vibration for a long time, and fix the cable properly;

④ Select the protection level according to the environment to avoid corrosion and oxidation.

A8: The shielding function is mainly to isolate external electromagnetic interference (EMI) and radio frequency interference (RFI), prevent interference signals from affecting the stability of the connector’s signal transmission, and avoid interference generated by the connector itself affecting surrounding equipment. Scenarios that require shielded connectors: industrial automation control systems, PLC connections, frequency converters, sensor signal transmission, rail transit, medical equipment and other scenarios with high requirements for signal purity.

A9: Cable selection must match the connector specifications and application scenarios:

① The number of cable cores and wire diameter must match the number of connector pins and rated current. Too thin wire diameter will cause heating, and too thick wire diameter cannot be inserted into the interface;

② Material: Choose cables with strong weather resistance (such as PU, PE materials) for outdoor/humid environments, and high-temperature resistant cables (such as PTFE materials) for high-temperature environments;

③ Shielded cables must be used with shielded connectors to ensure effective grounding of the shielding layer and exert the shielding effect.

A10: The same model and specification of connector can be directly replaced, but 3 points should be noted:

① Confirm that the rated current, voltage, number of cores and interface type of the connector are completely consistent to avoid failure of use or equipment failure due to inconsistent models;

② Cut off the power before replacement, clean the residual foreign objects in the interface, and ensure that the installation environment is dry and clean;

③ After replacement, check whether the plugging is firm, whether the cable is fixed reliably, and conduct power-on test to check whether the signal/power transmission is normal to avoid poor contact.