©
National Instruments Corporation
3
NI TB-2627 Installation Instructions
Caution
Do
not
install a damaged terminal block on a switch terminal block.
Store the terminal block in the antistatic package when not in use.
2. Verify the Components
Make sure you have the following:
❑
NI TB-2627 terminal block
❑
NI PXI/PXIe-2527 switch module
❑
PXI chassis
❑
1/8 in. flathead screwdriver
❑
Wire cutter
❑
Wire insulation stripper
3. Connect Signals
Caution
Ensure that power has not been applied to signals prior to connection. Only
trained and qualified service personnel should install and connect signals.
To connect signals to the terminal block, complete the following steps:
1.
Prepare the signal wire by stripping the insulation no more than
3/16 of an inch from the end of the wire.
2.
Remove the terminal block top cover screws with the flathead
screwdriver.
3.
Gently lift the top cover off the terminal block.
4.
Loosen the two screws on the strain-relief assembly and remove the
top strain-relief bar.
5.
Connect the safety earth ground to a safety ground lug.
6.
Connect the wire to the terminal by inserting the stripped end of the
wire into the terminal. When connecting a signal, refer to the terminal
reference diagram in Figure 4.
7.
Tighten the screw for the terminal to secure the connection.
8.
Pull the wire through the strain-relief bar to remove the slack in the
wiring.
9.
Replace the strain-relief bar and tighten the two screws on the
strain-relief assembly to secure the cables.
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