Chapter 3
Connecting the Signals
©
National Instruments Corporation
3-7
DAQPad-MIO-16XE-50 User Manual
DAQPad-TB-52 Signal Connections
Note
You do not have to turn off the DAQPad-MIO-16XE-50 before removing the
DAQPad-TB-52.
To connect signals to the DAQPad-TB-52, perform the following steps:
1.
Disconnect and remove the DAQPad-TB-52 from the
DAQPad-MIO-16XE-50 by unscrewing the front panel thumbscrews
and then gently pulling on the front panel handle.
2.
Remove the strain-relief bar by unscrewing and removing the
strain-relief screws with a flathead screwdriver (3/16 in. maximum).
3.
Connect the signals to the screw terminals by inserting the wires into
the appropriate terminals and tightening the screws with a flathead
screwdriver (1/10 in. maximum).
4.
Flatten the wires to lay across the strain-relief opening. Replace the
strain-relief bar over the wires and tighten the strain-relief screws.
5.
Slide the DAQPad-TB-52 back into the DAQPad-MIO-16XE-50 until
the terminal block is firmly connected. Retighten the front panel
thumbscrews.
If the system (the DAQPad-MIO-16XE-50 and PC) is floating with respect
to earth ground, for both safety and shielding reasons you should ground
the system to earth ground using the grounding lug provided on the inside
of the DAQ-TB-52 front panel, shown in Figure 3-1.
PFI9/GPCTR0_GATE
DIO
—
V
CC
+0.5
3.5 at
(V
CC
–0.4)
5 at 0.4
1.5
50 k
Ω
pu
GPCTR0_OUT
DO
—
—
3.5 at
(V
CC
–0.4)
5 at 0.4
1.5
50 k
Ω
pu
FREQ_OUT
DO
—
—
3.5 at
(V
CC
–0.4)
5 at 0.4
1.5
50 k
Ω
pu
1
DIO <6..7> are also pulled down with a 50 k
Ω
resistor.
AI = Analog Input
DIO = Digital Input/Output
pu = pull up
AO = Analog Output
DO = Digital Output
Table 3-2.
I/O Signal Summary of the DAQPad-TB-52 (Continued)
Signal Name
Drive
Impedance
Input/
Output
Protection
(Volts)
On/Off
Source
(mA at V)
Sink
(mA
at V)
Rise
Time
(ns)
Bias
