cm64
Newbie level 6
Regarding an RS485 to TTL converter here: https://docs.m5stack.com/en/unit/iso485
In ISO485 terminals it shows ground instead of shield as the third terminal as here https://static-cdn.m5stack.com/resource/docs/products/unit/iso485/iso485_04.webp and here: https://static-cdn.m5stack.com/resource/docs/products/unit/iso485/iso485_02.webp
But in the schematics it shows that terminal as shield: https://static-cdn.m5stack.com/resource/docs/products/unit/iso485/iso485_sch_01.webp
I guess it makes sense it is GND since it is RS485 requirements.
So what is the GND terminal really connected to? Is it connected to the GND of RS485 side or the the node shown as shield in the schematics(where there is an RC parallel filter)?
In ISO485 terminals it shows ground instead of shield as the third terminal as here https://static-cdn.m5stack.com/resource/docs/products/unit/iso485/iso485_04.webp and here: https://static-cdn.m5stack.com/resource/docs/products/unit/iso485/iso485_02.webp
But in the schematics it shows that terminal as shield: https://static-cdn.m5stack.com/resource/docs/products/unit/iso485/iso485_sch_01.webp
I guess it makes sense it is GND since it is RS485 requirements.
So what is the GND terminal really connected to? Is it connected to the GND of RS485 side or the the node shown as shield in the schematics(where there is an RC parallel filter)?
