18.5 RS422 RS485 electrostatic surge protection scheme,signal protection

signal protection

18.5 RS422 RS485 electrostatic surge protection scheme

Advantages of the solution: It is used for surge protection of RS422 RS485 interface, and adopts TSS with low residual voltage to effectively protect RS422
RS485 chip, TSS response time is ns level, which can prevent surge and static electricity, and ensure signal integrity .
Meet IEC61000-4-2 , electrostatic level 4 , contact discharge 15kV , air discharge 8kV ; IEC61000-4-5 wave
Surge 10/700μs , 6KV .