Is there a default PK that comes in all modules form the factory or how do I find out what it is?
The provisioning key is not set by
Radio Bridge, it is a write-only field that is set by the client prior
to deployment into the field. The session key itself could be programmed
into every device and the provisioning key would not be necessary. The
provisioning key is only used when broadcasting the session key over the
radio, typically in the field when a session key is set or changed.