Teletronics WINC900A - Manual (Page 11)

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the front panel of the device. A pencil, pen or other sharply pointed object is required to access the
button through the hole on the front panel.
4.3.1 Establish Connection and Function Test
Step 1. Establish Communication with WINC 900A (execute followings at both PCs)
1. Execute MS-Windows
2. Activate the Terminal in the Accessories
3. Select the Settings, and then click on the “communications” option
4. Click on the available com port from the connectors list
5. Click on the 9600 from the baud rate list.
6. Click on the OK, which will bring you back to the Terminal and stay in the local
terminal mode.
7. Press “Enter” key without AT command. You should get an “ERROR” as response.
Step 2. Establish connection with remote WINC 900A
1. Get the remote station’s address, the right-most seven (7) digits of the serial number
digit found on the label affixed to the left side of the unit.
2. Type in AT connection command ATDT with seven (7) digit remote address as
“ATDTxxxxxxx”.
3. You should get a “CONNECT” as response at both sides.
4. If you did get the “CONNECT” response, you will stay in direct connection mode until
you type in the escape sequence “+++”.
5. If you did not get the “CONNECT” response and system halt. Please reboot the WINC
900A, verify the remote address, and try the AT connection command again.
6. In the connection mode, you may start to type some message on one of your computers
The typed in message will be displayed on the screen of the remote side.
Step 3. Function test on file transfer
1. Click on the “Transfers” from the menu bar of Terminal.
2. Click on the “Send Text File”
3. Select one of the text files from the file list, and then click on OK.
4. You should be able to see the content of the text file on the screen of the remote side.
Also, the transferred file will be created on the remote side, if your friend can help you out
on the remote side, select the “Receive Text File” option from the “Transfers”, and assign a
file name for the in-coming file.
Step 4. Disconnect established link between two WINC 900As
The WINC 900A only responds to AT commands when in the command or off-line mode.
Consequently, to terminate a connection, the unit must escape to this mode before it will
respond. This is accomplished by issuing the escape sequence "+++". Once in the
command mode, the AT command ATH is issued to close the connection.
While the basic AT command set is generic and applies to most land-line modems, a number of AT
commands unique to the WINC 900A are included in Section 7.3. These commands are used to
control air-link specific parameters like the channel number and other operational characteristics.
For completeness, the basic and extended AT command set is described in Section 7.0. In addition,
Appendix A contains the Standard AT Modem Commands and Appendix B contains the S Register
Summary.