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Communication Port Setting
The Site Master Software Tools communicates with the Site Master
through a standard COM port on the PC. It is important that your Win-
dows COM port settings conform to the actual hardware settings. Table
3-1 provides a listing of standard COM port settings for most IBM
AT-Compatible computers.
Since various add-in devices such as sound cards, modems, and net-
work cards use IRQ (Interrupts), it is possible that your computer has
non-standard COM port settings. Please consult your computer vendor
for COM port address and IRQ information.
Changing COM Port Settings–Wi ndows 3.1
Refer to Figure 3-1 while performing the following procedure.
Step 1.
Open the Windows Control Panel.
Step 2.
Double click on the Ports icon. The Ports dialog box
appears.
Step 3. Click on the icon for the COM Port whose communi-
cations settings you wish to specify, then click the
Settings... button. The Settings dialog box appears.
3-2
Chapter 3 Screen Capture Program
Port IRQ Address
COM1 4 3F8
COM2 3 2F8
COM3 4 3E8
COM4 3 2E8
Table 3-1.
Standard COM Port Settings