12-Channel RS232 UART Expansion PCBA

The 12-Channel RS232 UART Expansion PCBA is designed for industrial equipment that needs multiple serial communication interfaces from a single control system. The board provides 12 DB9 communication ports and supports multi-channel UART and RS232 data transmission. It fits industrial control equipment, automation systems, communication terminals, and other devices that connect several serial peripherals at the same time. The PCBA uses an L-shaped FR-4 board structure with components placed on both sides. The circuit holds the main communication controller, CH438 multi-channel UART devices, signal conversion circuits, passive components, and a board-to-board connector. The board routes multiple communication channels across its surface to support independent data transmission between the host system and connected external devices. This product is part of the PCB assembly service for communication and industrial interface boards. The manufacturing process joins SMT component placeme…

Box-build Assembly Gold Finger PCB Halogen Free Pcb DIP Assembly Multilayer PCB Design