St John's (Type C)

Read-only telemetry node (~20,000 sensors, rolled up to these channels). Senses and executes local shutdown logic; it never commands.

Channel	Value	Health	State
Temperature	0.0	99%	normal
Vibration	0.0	98%	normal
EmField	0.0	99%	normal
Load	0.0	99%	normal
InsulationStress	0.0	100%	normal