TD301D485 with Communication Modules DIP RoHS is a module manufactured by MORNSUN. It is an RS485 communication module. This module adopts isolated transmitting and receiving, which can effectively protect the RS485 network from being damaged by high voltage, current, and electromagnetic interference. It features an exceptional built-in signal-lighting display, which can show the transmission signal power and check the data transmission direction, making the device more reliable. This module has a DIP package type, is RoHS compliant, and is applicable to a broad range of power supply voltage.