Gpib Cable Shield Grounding; Figure 3-7. Gpib Cable Shield Grounding - National Instruments Corporation GPIB-1014P User Manual

Configuration and Installation

GPIB Cable Shield Grounding

The GPIB cable shield connects to the chassis ground through the metal front panel on the GPIB-
1014P. The cable shield can also be connected to the system logic ground if desired. Usually, the
GPIB cable shield is grounded only at the GPIB System Controller. Set hardware jumper W1 to
the side labeled CON to short or connect the GPIB cable shield to VMEbus digital logic ground.
Place the jumper on the side labeled ISO to leave the GPIB cable shield isolated. Select one
configuration depending on whether or not the GPIB-1014P is the GPIB System Controller and
whether or not the GPIB cable shield is grounded elsewhere. Figure 3-7 shows the two possible
configurations. The GPIB-1014P is shipped in the isolated or unconnected configuration.
a. Shield Isolated or Unconnected
GPIB-1014P User Manual
W1
ISO
•
SHLD
CON
(Default setting)

Figure 3-7. GPIB Cable Shield Grounding

W1
ISO
•
SHLD
CON
b. Shield Grounded or Connected
3-8 © National Instruments Corporation
Section Three