Can anyone tell me how we can do the serial connection of ssh to the Arris NVG448BQ modem/router/wifi?
I see at least two 4 pin headers on the photos at https://fccid.io/GZ5NVG4XXQ
There's also Adding support for Arris NVG443B? - #3 by slh
Am I right?
Probably.
Trial and error, and perhaps a volt meter.