Chapter 2 Installation and Configuration
© National Instruments Corporation
2-5
VXI-1500 User Manual
Setting Fan Speed
The fan speed selector switch is located on the rear panel of the
VXI-1500. Refer to Figure 1-3 for a diagram of the fan speed selector.
Select HI for maximum cooling effectiveness or LO for more quiet
operation.
Connecting Safety Ground
The VXI-1500 requires connection from the premise wire safety ground
to the mainframe chassis grounding stud located on the rear panel. Refer
to Figure 1-3 for a diagram of the chassis grounding stud. To connect the
safety ground, complete the following steps:
1. Connect a 16 AWG (1.3 mm²) or larger wire to the chassis (safety)
grounding stud using a toothed grounding lug. The wire insulation
must be green with a yellow stripe or non-insulated (bare).
2. Attach the opposite end of the wire to permanent earth ground using
toothed washers or a toothed lug.
The chassis is designed with a three-position NEMA 15-5 style plug
which is internally connected to the chassis of the mainframe. To
minimize shock hazard, the earth safety ground must be connected when
the mainframe is powered on.
Connecting to AC Mains Power and Testing Power Up
Caution:
Make sure the mains power switch located on the front panel of the
VXI-1500 (upper right) is in the Off position (0). Refer to Figure 1-2
for a diagram of the mains power switch.
Do not install VXI modules prior to performing the first power-on test.
The power supply is universal, allowing the mainframe to connect to all
standard worldwide input voltages. Refer to Chapter 1, Getting Started,
for power cord specifications. Attach input power through the rear AC
inlet using the appropriate line cord supplied. Refer to Figure 1-3 for a
diagram of the IEC 320 inlet.
