SCB-19 User Guide
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© National Instruments
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3
Screw Terminal Diagram
Figure 2 shows the interior of the SCB-19, including the screw terminals and their corresponding
signals.
Figure 2.
Interior of the SCB-19
Getting Started with the SCB-19
Complete the following steps to connect and use your SCB-19 with your NI device.
1.
Install your NI device in your chassis. Refer to your device documentation for installation
instructions.
2.
Remove the four cover screws with a Phillips #1 screwdriver and open the top cover, as
shown in Figure 1.
3.
Connect wires to the screw terminals by stripping 6.35 mm (0.25 in.) of insulation, inserting
the wires into the screw terminals, and securely tightening the screws with the flathead
screwdriver to a torque of 0.5 N · m to 0.6 N · m (4.43 lb · in. to 5.31 lb · in.).
Caution
To ensure the EMC performance specified for the connected device, any
wires connected to screw terminals that exit the enclosure must be shielded.
NI recommends using a multiconductor cable with an overall shield. Terminate the
cable shield to one of the PCB mounting screws.
Note
The top row of screw terminals corresponds to the DIO and PFI signals on the
AUX I/O front panel connector. The bottom row provides ground terminals.
1
DIO and PFI Screw Terminals
2
Ground Terminals
3
Wall Mounting Screw Holes
4
Cable Tie Loops
5
Cable Tie
S/N
J2
0
1
DIO PORT 0
UPPER ROW SHOW
UPPER ROW SHOWN - LOWER ROW ALL GROUND
LOWER ROW ALL GROUND
2
3
0
1
DIO PORT 1
2
3
0
1
PFI
2
3
5V
J1
©
COPYRIGHT
HT 2011
1
J1
3
3
4
5
1
2
