©
National Instruments Corporation
5
NI CB-37F-HVD Installation Guide
Cabling to the Terminal Block
You
must
install the DAQ device in a PC or PXI chassis, as described in the
DAQ Getting Started Guide
, before cabling the device to the terminal
block. Complete the following steps to connect the terminal block to the
DAQ device D-SUB connector.
1.
Connect the DAQ device to the terminal block with the 37-pin cable.
2.
Tighten the two cable thumbscrews to a torque of 0.3 N · m
(2.7 lb - in.) on each end of the cable.
Specifications
All specifications are typical at 25 °C unless otherwise specified.
Electrical
Coupling................................................. DC
1
Terminal wire size.................................. 12 to 30 AWG
Field-wiring connectors
Signal screw terminals .................... 37
Earth-ground screw terminal .......... 1 (
, for shielding only,
not a safety ground)
Strain relief ..................................... Zip ties through holes in PCB
Maximum current................................... 2 A per conductor
Mechanical
Dimensions............................................. 13.75 cm
×
9.0 cm
×
6.5 cm
(5.5 in.
×
3.55 in.
×
2.5 in.)
Weight .................................................... 210 g (7.5 oz)
Maximum Voltage
Maximum voltage refers to the signal voltage plus the common-mode
voltage.
Channel-to-ground ................................. 150 V
1
In instrumentation terminology,
DC coupling
means that both DC and AC signals are passed.
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