巴基斯坦采购需求：电池管理系统、BMS电池、BMS模块、锂BMS、BMS锂电池、Lifepo4 BMS

I'm currently working with a battery management system that features a single UART port. I'm integrating a parallel interface board that also connects through this UART port. At the same time, I'm looking to add a Wi-Fi dongle that also requires a UART connection. To achieve simultaneous connectivity for both the Wi-Fi dongle and the interface board, what solutions or configurations do you recommend? Is there a way to multiplex the UART signals, or do I need to consider alternative connection methods? Looking forward to your expert advice on this matter.