Product Manual

129
Miscellaneous
1. You first need to know which IP address should be entered
in your surveying system to establish a Direct IP
connection to the RTDS software.
Unless you already have a static IP address, or if you don’t
know whether you have one or not, call your Internet
Service Provider (ISP) to obtain a static IP address for the
computer on which you will install the RTDS software.
With most ISPs, you’ll have to pay a fee to get a static IP
address option for your computer.
2. You then have to choose one or two port numbers.
depending on whether you will be using the GPRS-to-
GPRS or Serial-to-GPRS mode.
In theory, port numbers can range from 1 to 65536 but
No. 1 to No. 1024 are considered as reserved numbers.
There are also conventions recommending the use of
specific port numbers for specific applications. For
example, all GNSS-related data exchanged on the Internet
are usually routed through port 2101. This port number
can then be chosen (plus others if necessary, for example,
“2102”, “2103”, etc.), but remember that any numbers
greater than 1024 may be chosen, provided they are not
used on your computer for some other application.
3. Take the necessary steps to allow data to flow freely
between RTDS and your surveying system through the
chosen port number(s). This means you have to declare
the use of this port (or these ports) in the ADSL modem
firewall (or gateway), and possibly in the computer
firewall. You may need some advice from your computer
specialist to complete this operation.
If your computer is part of a local network (LAN), ask the
network administrator to perform the required network
address translations (NAT) and declare the port numbers
used so the data arriving at the public IP address can be
routed to your computer through its local IP address and
port.
4. Install the RTDS software on your computer. This is an
easy step during which you just have to run the “Ashtech
Real Time Data Server x.x-x setup.exe” file provided, then
follow the instructions to complete the installation phase.
5. Determine whether you need to use the GPRS-to-GPRS or
Serial-to-GPRS mode (see above), depending on your
application. Choose the base location and computer
location accordingly.
6. On the computer, launch RTDS and make the appropriate
settings (plus make the serial connection if the Serial-to-