Three methods to solve the transient interference problem of optical transceiver

Three methods to solve the transient interference problem of optical transceiver

Method 1 for solving the transient interference problem of optical transceivers: transient interference generation: transient interference is generated by large-scale inductive loads, such as switching of devices such as motors, transformers, relays, etc., and during the occurrence of lightning, it is often electrostatically induced. The way to invade the optical transceiver.

Solving the transient interference problem of optical transceivers: the harm of transient interference: due to its high interference frequency, short duration, large interference range (hundreds of thousands of volts), it can burn out the RS-485 interface chip of the optical transceiver, the main Key parts such as chips do not leave any traces, especially during the thunderstorm season in summer. This destructive power has a great impact, making users, businesses and manufacturers very troublesome.

Solving the transient interference problem of optical transceivers: Countermeasures: Although optical transceiver manufacturers use various protection methods, such as bypass method (self-recovery diode), absorption method (bidirectional suppression diode, etc.), isolation method (optocoupler isolation) However, the damage caused by transient interference can not be completely eliminated, and the RS-485 interface is damaged frequently, which causes great pressure on users and manufacturers.