
Keypad & Display Description | 51
Uploading Waypoints from a Personal Computer
You can use any terminal or communications program to download or upload waypoints
and routes to or from the CDU and a PC.
Set the PC to:
4800 baud
8 bits
1 stop bit
no parity
no flow control
When sending data to the CDU, it must be sent in block form, followed by (with an appended)
CR (carriage return) and LF (line feed). Normal communications programs, like Windows
3.1 or 3.11 Terminal are sufficient to get the job done. Unfortunately Windows 95 and new
Windows O/S doesn’t provide a basic terminal emulation program; therefore, a third party
program is required with Windows 95 and above.
Using Windows Terminal, do the following (from the Program Manager):
Using an RS-232 to RS-422 convertor, connect the CDU’s port 1 or 2 to the PC’s
1
communications port.
On the CDU press the
2 CFG key until CFG1 screen is displayed.
Scroll down the menu to
3 WPL Input.
Press the
4 EDIT key.
Set the
5 Transducer Connected to Yes.
Set the
6 Data Input Port No. to 2.
Press the
7 EDIT key.
On the computer, double click on the
8 Accessories icon.
Double click on the
9 Terminal icon.
Click on the
10 Settings menu.
Double click on the
11 Communications menu item and make the following settings:
4800 baud
8 data bits
1 stop bit
Parity - none
Flow Control - none
Connector - Com1 (or Com2, depending where the external interface is)
Parity Check - blank
Carrier Detect - blank
OK
Click on the12 Transfers menu.
Double click on the
13 Send Text File menu item and make the following settings:
[select the correct file name.txt]
[select the correct location (folder) for the file]
check the Append LF box
OK
When all the waypoint sentences are sent, press the 14 WPT key and scroll through
the list to ensure all the waypoints transferred properly.
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