Hi guys,
So I need to replace a few devices that are dependent upon circuit switched modems which the cell companies are no longer going to support .
The serial protocol is proprietary peer to peer, currently the application dials out with ATD
So when (if?) I move to a device like the TRB-142 I can see that I will have a solution like the following:
(There is an ethernet segment missing until you click on it due to a transparent BG in the source sketch)
I perceive that :
-
Each remote TRB is acting as a serial over iP server
-
Unless a private APN / public IP SIM is used, a VPN will be needed due to CGNAT
(I left that out of the diagram for simplicity!) -
Once the connection is established the proprietary serial format can flow laptop to
equipment, and -
There is a need for the red “BOX X” to setup the TLS connection to the remote TRB
given there are multiple TRBs serving out in the field and that the serial protocol is proprietary, what product in the real world fill the role of “BOX X” please
1 to 1 would be simple (another TRB) but one to many looks like a little more intelligence would be needed ?
Many thanks in advance for the clarifications
Regards
BB