I know that the Garmin GSA 28 autopilot servo has a built in 120 Ohm resistor which is active if I bridge pins 3 & 4. This needs to be done as my Roll servo will be the end of my CAN BUS. Super easy I know.
However, I'm thinking of fitting an external resistor to the CAN BUS here instead of using the inbuilt resistor. I won't put it on the node legs, it will be on the CAN BUS return line like this...
Why? My logic is that it is more resilient. Let's say the GSA 28 has a fault, or the plug becomes disconnected, or someone disconnects the AP servo and forgets to connect the Garmin terminator there, this is all covered by my design. In this scenario my CAN BUS will continue to function.
Question is, will this work? Have I understood it correctly?
If so, will any type of resistor do here?