Vega INSYS Modem GPRS 5.0 Bedienungsanleitung PDF herunterladen (Seite 41)

INSYS GPRS 5.0 serial Connection

For TCP Listen mode, the number of dialing attempts until a device is restarted

can be limited with the command AT**TCPLISTENWAITRST=<n>. For example,

the INSYS GPRS 5.0 serial is restarted with AT**TCPLISTENWAITRST=3 after the

third dialing attempt (20s+80s+320s). This will restart the dialing cycle. The de-

fault value for this setting is 255.

5.2.5 Manual connection setup

Establish a connection to an IP address or a host with domain name.

IP address <ip> with port <port>

ATD<ip>:<port>

Domain Name <domain> with the port

<port>

ATD<domain>:<port>

Response: Connect

The call was accepted; the transfer of data can begin.

5.2.6 Automatic connection setup (leased line)

With the leased line function, a preset destination is automatically dialed.

The connection setup and the connection itself are monitored.

If the connection can not be established (network failure, remote system does not

respond) or if the connection is terminated, the INSYS GPRS 5.0 serial will auto-

matically start reconnecting.

To limit the connection costs for inaccessible remote terminals (for each connec-

tion setup data packets are created and billed), the delay time will increase for

every new repeated attempt.

 20 seconds after restart or if the last connection setup was successful

 80 seconds after the first failure

 320 seconds after the second failure

 1280 seconds after the third failure

 1 hour for each additional failure

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Vega INSYS Modem GPRS 5.0 Bedienungsanleitung Seite 41