National Instruments SCXI-1163 - Manual (Page 19)

Configuration and Installation Chapter 2
SCXI-1163 User Manual 2-4 © National Instruments Corporation
Do not operate damaged equipment. The safety protection features built into this
module can become impaired if the module becomes damaged in any way. If it is
damaged, turn the module off and do not use until service-trained personnel can
check its safety. If necessary, return the module to National Instruments for
service and repair to ensure that its safety is not compromised.
Do not substitute parts or modify equipment. Because of the danger of
introducing additional hazards, do not install unauthorized parts or modify the
module. Return the module to National Instruments for service and repair to
ensure that its safety features are not compromised.
When using the terminal block with high common-mode voltages, you must
insulate your signal wires appropriately. National Instruments is not liable for any
damages or injuries resulting from inadequate signal wire insulation.
When connecting or disconnecting signal lines to the SCXI-1326 terminal block
screw terminals, make sure the lines are powered off to prevent shock hazard.
Connections, including power signals to ground and vice versa, that exceed any of
the maximum signal ratings on the SCXI-1163 can damage any or all of the
boards connected to the SCXI chassis, the host computer, and the SCXI-1163
module. National Instruments is not liable for any damages or injuries resulting
from incorrect signal connections.
If high voltages (
≥
42 Vrms) are present, you must connect the safety earth ground
to the strain relief tab. This complies with UL 1244 and fully protects against
electric shock when the terminal block is not connected to the chassis. To connect
the safety earth ground to the strain relief tab, run an earth ground wire in the
cable from the signal source to the terminal block. National Instruments is not
liable for any damages or injuries resulting from inadequate safety earth ground
connections.
Jumper Use
Use the jumpers as follows:
• Reserved jumper
- Jumper W1 is reserved; do not connect this jumper.
• User-configurable jumpers
- Jumpers W2 and W3 select whether the SCXI-1163 is to be connected to a DIO-type
board or to an MIO-type board. If you are controlling the SCXI-1163 module via the
SCXI backplane, the position of these jumpers is irrelevant.
- Jumper W4 connects a pullup resistor to the SERDATOUT signal on the rear signal
connector.