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Using the Serial Port in Windows
The default serial communications driver for Windows is installed on the NI CVS-1459. The
serial port appears in the operating system as COM2. This driver is provided by Microsoft
with all Windows installations.
Use the default serial driver when the serial port is configured to RS-232 mode in the BIOS.
The default serial driver can also be used when the serial port is configured to RS-485 in Four-
Wire or Auto wire modes.
The default serial driver does not allow the wire mode to be changed at run time and it does
not allow the RS-485 transceivers to be controlled manually. For full control of the RS-485
serial port, the NI-Serial for Windows driver must be installed. The serial mode, whether
RS-232 or RS-485, must be configured in the BIOS regardless of the driver used.
Refer to the National Instruments website at ni.com to download NI-Serial. Install NI-Serial
15.0 or later.
VGA Port
Use the VGA port to connect a monitor to the NI CVS-1459. Use any standard 15-pin VGA
cable to access the VGA port. The VGA port has a maximum resolution of 1920 x 1200 at
60 Hz.
Pin
Signal Name
1
2
GREEN
3
4
RESERVED
5
6
RED RETURN
7
GREEN RETURN
Figure 7. VGA Port Pin Locations
RED
BLUE
GND
6
1
11
5
10
15
Signal Description
Red analog video signal
Green analog video signal
Blue analog video signal
Ground reference
Ground reference
Ground reference
NI CVS-1459 User Manual | © National Instruments | 7
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