How can I test com 1 & 2 other than cpanel properties reply working ok?

HOW CAN I TEST COM 1 & 2 OTHER THAN CPANEL PROPERTIES REPLY WORKING OK

This question was answered on May 4, 2004. Much of the information contained herein may have changed since posting.

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Testing Ports

To test whether the ports on your computer are working, first

1 Type DEBUG (at a DOS prompt).

2 At the hyphen, type D40:00.

Communication Ports

NOTE: The first COM port will usually be in the left most position in the DEBUG list This is not always COM1 An example of this is when a DB modem is set to COM3, and the R232 serial port is set to COM2, DOS will back fill the active COM ports, so COM2 will show as COM1 to DOS, but its address will still be F802

You can determine if the ports are active by checking this print out The port address shows the port is active, 00 00 shows it is not recognised The example below shows COM1 (F8 03) and COM2 (F8 02) active, COM3 and COM4 inactive:

COM1 COM2 COM3 COM4

0040:0000 F8 03 F8 02 00 00 00 00- 78 03 00 00 00 00 1F 05

0040:0010 61 C4 B0 7C 02 00 01 60- 00 00 2A 00 2A 00 34 05

About the author

Posted by Raymond of Katharine Gibbs School - New York on May 4, 2004

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