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2) Base on report mode
Parameters: Max. reconnect times, reconnect interval
While using this mode, the unit will connect to the server when there is a report to send. If the first connection
is failed, it will retry to connect to the server up to the max. reconnect times. Each retry will be separated by the
reconnect “interval”.
3).GPRS connect once
While using this mode, the unit will connect to the server when there is a report to send (but only try once). If it
is not successful, the report will be stored and sent out in the next successful connection. Disconnect GPRS
connection when report sending is completed.
Reduce GPRS dialup method
Parameters: On/Off, Max. reconnect times, connect delay
If this method is used, the unit will reduce the GPRS dial-up connection when the dial-up is failed after number
of times. User can define the delay time for the unit before try to reconnect to the server. If there is trigger
report, the unit will connect to server immediately.
Keep alive procedure
Parameters: On/Off, and interval / retry times. In order to keep connection in GPRS network, the unit can be set
to send short keep alive report to the server in order to prevent the disconnection from the mobile service
provider.
Send reports after a successful keep alive ACK. Parameters: On/Off .
If you select this function, all the reports will only be sent out after a successful keep alive ACK. (So if your
keep alive time is shorter then select this function will be OK.) This function is very useful while using UDP to
prevent report lost.
Send a keep alive packet right before a due reports if no data stream within certain time: Parameters: On/Off,
and idle time.
Some GSM provider might cut connection, if there is no data within certain time. It might result report lost in
this “fake connection” duration. For example, you can set parameters in this region, ex 20 mins. (it means if the
unit did not send any data in this 20 mins (including keep alive or normal reports) ), then it will send a keep
alive packet to check if the GPRS connection is valid or not. If not, it will actively reconnect to GPRS network.
Special command for SMS mode:
If the GT2000NP/GT2500NP is not in the GPRS online status, user can send command &&Y02 or &&Y04 to
ask unit to connect to server. This command can be sent from any device via SMS;
&&Y02:
When received this command, system will actively try to connect to server in next 600 seconds.
