Chapter 2 Configuring the VXI-1200
VXI-1200 User Manual
2-8
© National Instruments Corporation
Connecting Safety Ground
Omit this procedure if you do not intend to operate the VXI-1200 at
frequencies greater than 63 Hz. When operating the VXI-1200 at mains
frequencies between 47 Hz and 63 Hz, use the chassis (safety) ground
connection to connect the grounds of one or more instruments to the
mainframe. This ensures a common ground connection between
instruments.
Warning:
For your protection from electrical shock when operating at mains
frequencies greater than 63 Hz, connect the chassis safety ground
terminal to permanent earth ground. See Figure 2-5.
1. Connect a 16 AWG (1.3 mm
2
or larger) wire to the 8-32 chassis
(safety) grounding screw 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.
B0
B1
B2
Chassis (Safety)
Grounding Screw
Figure 2-5.
Connecting Safety Ground
