NI CVS-1458 Getting Started Guide
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© National Instruments
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7
3. If the power connector plug is connected to the chassis, disconnect it from the device.
Figure 6 shows the terminal screws, which secure the wires in the screw terminals, and the
connector screws, which secure the connector plug on the chassis.
Caution
Do
not
tighten or loosen the terminal screws on the power connector while
the power is on.
Figure 6.
4 Position Power Screw Terminal Connector Plug
4. Connect the positive lead of the isolated outputs power source to the V
ISO
terminal of the
power connector plug and tighten the terminal screw to 0.2 to 0.25 N · m (1.8 to 2.2 lb · in.)
of torque.
5. Connect the negative lead of the isolated outputs power source to the C
ISO
terminal of the
power connector plug and tighten the terminal screw to 0.2 to 0.25 N · m (1.8 to 2.2 lb · in.)
of torque.
6. Connect the positive lead of the PoE power source to the V
POE
terminal of the power
connector plug and tighten the terminal screw to 0.2 to 0.25 N · m (1.8 to 2.2 lb · in.) of
torque.
7. Connect the negative lead of the PoE power source to the C
POE
terminal of the power
connector plug and tighten the terminal screw to 0.2 to 0.25 N · m (1.8 to 2.2 lb · in.) of
torque.
8. Install the power connector plug into the ISO power receptacle on the NI CVS-1458 chassis
and tighten the connector screws to 0.4 N · m (3.5 lb · in.) of torque.
9. Turn on the external power source.
1
V
POE
(Positive) Terminal Screw
2
C
POE
(Negative) Terminal Screw
3
V
ISO
(Positive) Terminal Screw
4
C
ISO
(Negative) Terminal Screw
5
Connector Screws
2
1
5
ISO
POE
4
3
