DCT Antares SB, User Manual

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5.1. GETTING STARTED
>
SXADP0000192.168.0.1;2145
<
This last option with the deprecated message would have been:
>
SDP000019216800000102145
<
Having set the DP the unit will automatically start opening a TCP connec-
tion with the server (as long as GPRS is ready)
even if it has no messages to
send to it . This is a programmed feature of the unit that makes it (re)open
the TCP connection whenever the network is available after being down or
whenever the connection gets closed. At this point is possible for the
On
line led to start blinking, meaning that for whatever reason the TCP con-
nection with any of the configured IP-type DP is not open.
If after configuring the DP the On line LED remains solid, the unit has
established the TCP connection with the server and it is ready to send or
receive messages to/from it. If on the contrary the LED starts blinking
some considerations have to be taken:
1. The AVL software server is not running or it is running but it is not
listening for TCP connections.
2. The listening port and/or address is wrong.
3. The server is behind a firewall/router/NAT that prevents the incom-
ing connection from passing to the TCP listener.
4. The server is accepting the connection but it is immediately (or a few
seconds later) closing it.
5. The Antares SB
TM
is behind a cellular carrier’s NAT which has the
selected port blocked.
6. The selected APN has no Internet access. Or in case of a private
network, the APN has no access to the network where the AVL server
is running.
7. There are network related problems that prevent the unit from com-
municating even with GPRS up.
5.1.4 Creating a Destination Address (DA)
As mentioned on the Destinations section a DA has to be created so that
an event’s routing option can be completed. In our example we only have
to create a DA with a single
Destination Point which is the one we just
created. We have no restrictions for the DA range (0-9) so we chose DA 4
for no special reason:
>
SDA4;P00
<
Indicating that Destination Address 4 is the grouping of the single Des-
tination Point 00.
5.1.5 Creating a time-period criterion
For this example we want the unit to send a report based on a time-only
criterion which will make the unit send a reporting message every
x
elapsed
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