The main reason for adding capacitors to the RJ45 terminal resistor is to improve signal quality and system stability. Its main functions include:
1. Decoupling: capacitors can filter out high-frequency noise, help stabilize signals, reduce interference, and improve transmission clarity.
2. Smooth voltage fluctuations: In rapidly changing signals, capacitors can store and release electrical energy, thereby smoothing voltage fluctuations and reducing instantaneous signal interference.




3. Improve transient response: At the rising and falling edges of the signal, capacitors can respond quickly, help reduce signal reflection and distortion, and increase transmission rate.
4. Enhance anti-interference ability: capacitors can provide a low-impedance path in the cable, effectively reducing the impact of electromagnetic interference on the signal.
These effects make adding capacitors to the RJ45 terminal resistor improve the performance and reliability of the entire network system.
