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National Instruments Corporation
9
NI 653x Cable Adapter User Guide
Table 1 describes the VHDCI signals shown in Figure 5. Table 2 describes
the DAQ connector signals shown in Figure 6.
Note
Refer to your device documentation for supported channels.
Note
The NI 6535/6536/6537/654
x
/655
x
does not p5 V. If your fixtures require
this, access to the +5 V signal on the DAQ connector is provided through the unpopulated
W1 through-hole solder pad.
Table 1.
VHDCI Connector Pinout Descriptions (NI 6535/6536/6537/654
x
/655
x
)
Pin
Signal Description
Connection
DIO <0..31>
Bidirectional digital data channels 0 through 31.
P0 <0..7>, P1 <0..7>,
P2 <0..7>, or P3 <0..7>
on a 68-pin DAQ
connector
PFI <0..5>
Programmable functional interface (PFI) channels 0
through 5.
6-position screw
terminal (J4)
GND
Ground reference for signals.
—
RESERVED
These channels are reserved for system use.
Do not connect signals to these channels.
—
Table 2.
DAQmx Connector Pinout Descriptions (NI 6533/6534)
Pin
Signal Description
Connection
P0 <0..7>
Bidirectional digital data port 0 channels 0 through 7.
VHDCI DIO <0..7>
P1 <0..7>
Bidirectional digital data port 1 channels 0 through 7.
VHDCI DIO <8..15>
P2 <0..7>
Bidirectional digital data port 2 channels 0 through 7.
VHDCI DIO <16..23>
P3 <0..7>
Bidirectional digital data port 3 channels 0 through 7.
VHDCI DIO <24..31>
PFI <0..7>
Programmable functional interface (PFI) channels 0
through 7.
8-position screw
terminal (J3)
+ 5 V
DC power
Unpopulated W1
C PULL,
D PULL
Power on state control
NC
