Справочник Пользователя для National Instruments NI VISION PCI-8254R

Table 3-1 summarizes the functions of the connectors on the NI 8254R.

This section describes the connectors on the NI 8254R and includes pinouts 
and signal descriptions for each connector.

The isolated outputs power connector on the NI 8254R accommodates one 
power supply. The V terminal provides the isolated output circuitry (5 to 
30 VDC) for the NI 8254R. The C terminal provides the common-mode 
signal for the NI 8254R.

Figure 3-1 illustrates the isolated outputs power connector on the 
NI 8254R.

Figure 3-1.  NI 8254R Isolated Power Connector

Table 3-1.  NI 8254R Connector Functions

Isolated Output Power

2-position isolated outputs 
power connector

Power for isolated outputs

IEEE 1394

6-pin IEEE 1394a connector

Power and data connection to 
IEEE 1394 cameras

Digital Input/Output

44-pin female high-density 
D-SUB

External TTL I/O; External 
isolated I/O

Camera Power

4-pin computer power

Power from PC power supply 
to IEEE 1394a connector

V

C