DB9 Male screw terminal To RS232 RS485 Conversion Board: A DB9 Male screw terminal To RS232 RS485 Conversion Board is a separate wire connected by a screw. DB9 Male Adapter Plate Signal Module, Connector DB9 adapter terminals are to facilitate the project, site commissioning equipment.
HT12D is a decoder integrated circuit that belongs to 212 series of decoders. This series of decoders are mainly used for remote control system applications, like burglar alarm, car door controller, security system etc. It is mainly provided to interface RF and infrared circuits. They are paired with 212 series of encoders.