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R O U B L E S H O O T I N G
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Finding the Correct Serial Port
33
F i n d i n g t h e C o r r e c t S e ri a l P o r t
The software includes a procedure for locating the serial port to which your
station is connected or determining whether that serial port is working. Using the
Loopback command (as opposed to Test) will help you find the correct port and
determine whether the serial port or the data logger is causing a communication
problem. The loopback function will also detect and report the presence of any
modems.
To use this procedure, you will need the loopback connector (the
short cable with a phone jack on one end and a red plastic tip on the
other) supplied with Weatherlink.
1. If necessary, disconnect the cable between your station and the
adapter connected to the COM port.
2. Insert the loopback connector into the adapter.
3. Choose Serial Port from the Setup menu.
The software opens the Serial Port dialog box.
4. Choose Loopback.
The software will search all standard serial ports
and inform you of the COM port at which the loop-
back connector is located.
The software automatically selects the correct COM
port for you in the Serial Port dialog box. If it cannot
find the loopback connector at any COM port, your
serial port may not be working. Consult your computer documentation for
help.
Loopback
connector
Finding the Correct Serial Port
