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Pelco Manual C573M-D (11/03) 27
PC Communication: To set up the communication port for the PC, click System on the
CM9760-MDA SETUP dialog box and then click PC COM Setup. The System Communica-
tion Setup dialog box, Figure 22, appears.
Set communication parameters for the PC as follows:
1. Select the PC serial port by clicking the option button next to the desired setting. The
System Communication Setup dialog box displays up to four serial ports—COM 1,
COM 2, COM 3, and COM 4—depending on the number of serial ports available on
your PC. Only serial ports COM 1 and COM 2 are displayed in Figure 22. The default
is COM 1.
2. Select the baud rate by clicking the option button next to the desired setting. The
default is 9600.
3. Select the parity by clicking the option button next to the desired setting. The default is
Even.
4. For port-powered RS-232 to RS-422 converters, set RTS (Request To Send) high by
selecting the Hold RTS High item. The Hold RTS High item is selected when a
checkmark appears in the checkbox next to the item. Clicking the checkbox functions
as a toggle and selects or deselects the Hold RTS High item.
5. Click OK.
MDA Software Reset: To reset MDA software to factory default settings, click System
on the CM9760-MDA SETUP dialog box and then click MDA Software Reset. At the prompt
that asks you whether you wish to reset MDA software, click Yes.
Figure 22. System Communication Setup Dialog Box
6. Click OK. The MDA COM 1 Setup dialog box remains on the screen displaying the
updated port settings.
7. Test the CM9760-MDA communication port by clicking Test Comm:
• If communication between the MDA COM 1 port and the PC port has been
established, an information dialog box appears confirming communication
between the ports. Click OK on the information dialog box, and then click Cancel
on the MDA COM 1 Setup dialog box to close the dialog box.
• If communication between the MDA COM 1 port and the PC port has not been
established, a No Response dialog box appears instructing you to check the PC
port and unit ID settings. Click OK. Modify the settings as necessary and then
test the CM9760-MDA port again to confirm communication.
NOTE:
Clicking Cancel on
the MDA COM 1 Setup
dialog box does not cancel
the MDA COM 1 port setting
changes you made. Clicking
Cancel only closes the
dialog box.
NOTE:
The baud rate and
parity settings of the con-
nected CM9760-MDA
COM 1 port and PC port
must match.