2 respond acknowledgement to server, Server device – GLOBALSAT TR-203A User Manual

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Not receive ACK from server during “A2” time:

4.2.2 Respond Acknowledgement to Server

Receive report commands from server:

Send commands via SMS or UDP or TCP

Server

Device

“A2” time

Send report commands via SMS or UDP or TCP

Server

Device

Send report via SMS or UDP or TCP

Report via SMS or UDP or TCP

Respond ACK via SMS or UDP or TCP