The NWA5123 series has a 4-pin console port. Where can I get the console cable?
Did you meet any question for NWA5123 series?
For the console, you can buy it from amazon.
Zyxel’s console header pin define: pin1 NA, pin2 White(RX)，pin3 Green(TX), pin4 Black(GND), PS: Don’t connect red color pin to zyxel’s console pin.
You can buy any USB-to-Serial Bridge TTL 3.3V for Zyxel’s console port, and reference header pin define to connect.
Hope it helps.