HOME » QUESTION » Is interconnected sub-device’s SN the identifier for device?Why there is different SN for heat alarm and heat alarm recovery,also find different SN in fire alarm event?

Q：Is interconnected sub-device’s SN the identifier for device?Why there is different SN for heat alarm and heat alarm recovery,also find different SN in fire alarm event?

A：

SN is not a device identifier，use the description such as"Tamper Recovery" to identify event type.It has SN meaning and structure introduction in file "V2.8-E3S Universal Transparent Protocol".