©
National Instruments Corporation
7
NI SCB-264X Installation Instructions
5. Connect Signals
To connect signals to the NI SCB-264
X
, refer to Figures 1 and 2 while
completing the following steps:
1.
Prepare the signal wire by stripping the insulation no more than 7 mm
from the end of the wire.
2.
Loosen the strain-relief screws on the strain-relief bar closest to the
screw terminals.
3.
Route the signal wires through the strain-relief opening.
4.
Based on the NI TB-264
X
you are using, refer to the appropriate table
(Tables 2 through 10) to determine which screw terminal to connect the
signal wire.
5.
Insert the stripped end of the wire fully into the terminal. Secure the
wire by tightening the screw of the terminal.
Caution
No bare wire should extend past the screw terminal. Exposed wire increases the
risk of a short-circuit causing a failure.
6.
Connect the protective earth (PE) ground to a safety ground lug.
7.
Tighten the screws on the strain-relief assemblies to secure the cables.
8.
Replace the top cover.
Note
As illustrated in Figure 2, the NI SCB-264
X
contains six unused screw terminals,
Node 1
and
Node 2,
that you can use to assist in your signal/ground connections.
Node 1 consists of two screw terminals that are connected to each other but are
not
connected to any other screw terminals; Node 2 consists of four screw terminals that are
connected to each other but are
not
connected to any other screw terminals. Node 1 and
Node 2 are
not
connected together. Use of the node terminals is optional.
Tables 2 through 8 illustrate the wiring configurations available for the
NI SCB-264
X
.
