waveshare Isolated RS232 to RS485/422 Serial Adapter Converter with SP3232EEN and SP485EEN Chips, 300~921600bps Stable Transmission Onboard Multiple Protections (DB9 Male Port)

RS232 To RS485/422 (RS232 DB9 Male port), the Active Digital isolated Serial Converter Adopts SP3232EEN and SP485EEN chips solution. Fast communication, stable and reliable, better compatibility. Built-in galvanic isolation, lightningproof and anti-electrostatic protection and so on. It is an ideal choice for industrial control equipments and/or applications with high communication requirement.
RS232 and RS485/RS422 Bi-directional Conversion: Converting the RS232 signal into balanced differential RS485/422 signal for interface converting, expanding nodes and long-distance communication
Galvanic isolated Design: Onboard unibody power supply isolation, provides stable isolated voltage, needs no extra power supply for the isolated terminal. Onboard unibody digital isolation, allows signal isolation, high reliability, strong anti-interference, low power consumption
Multiple Protection,
Safe And Stable: Onboard TVS (Transient Voltage Suppressor), effectively suppress surge voltage and transient spike voltage in the circuit, lightningproof & ESD protection. Onboard self-recovery fuse and protection diodes, ensures the current/voltage stable outputs, provides over-current/over-voltage proof, improves shock proof performance
Transmission distance up to 1.2 km: The RS232 signal can be converted into a balanced differential RS485/RS422 signal with stable transmission rate, the transmission distance is about 1.2 km for RS485/RS422