RS485 photoelectric isolation relay
The 485 repeater is located in the 485 signal attenuation but also can detect the location of the signal, the 485 signal shaping in the reduction, copy the signal through the RS-485 bus transmission, so as to extend the communication distance of RS-485 bus, RS-485 bus to increase the load capacity of the role.
RS-485 signal after transmission distance or load device with a certain number of signal strength, will have the corresponding attenuation when the signal attenuation to a certain extent, RS-485 interface chip can detect the corresponding signal, resulting in communication failure.
The 485 repeater provides the function of relaying and amplifying the RS-485 signal, which can extend the communication distance of the RS-485 bus and increase the load capacity of the RS-485 bus.
