National Instruments NI 785xR - Manual (Page 44)

Chapter 2 Hardware Overview of the NI 78xxR
© National Instruments Corporation 2-23 R Series Intelligent DAQ User Manual
Figure 2-12. PXI Star Trigger Connections in a PXI Chassis
Refer to the PXI Hardware Specification Revision 2.1 and PXI Software
Specification Revision 2.1 at
www.pxisa.org for more information about
PXI triggers.
Switch Settings (NI 781xR/783xR Only)
Refer to Figure 2-13 for the location of switches on the NI PCI-781xR and
Figure 2-14 for the location of switches on the NI PXI-781xR. Refer
to Figure 2-15 for the location of switches on the NI PCI-783xR and
Figure 2-16 for the location of switches on the NI PXI-783xR. For normal
operation, SW1 is in the OFF position. To prevent a VI stored in flash
memory from loading to the FPGA at power up, move SW1 to the
ON position, as shown in Figure 2-17.
Note SW2 and SW3 are not connected.
1 Shared Local Bus Lines between Slot 2 and Slot 3
2 Shared Trigger Lines between Slot 2, Slot 3, and Slot 4
3 Shared Local Bus Lines between Slot 3 and Slot 4
LBR0
LBR1
LBR2
LBR3
PXI Star*
Slot 2
LBLStar0
LBLStar1
LBLStar2
LBLStar3 LBR0
LBR1
LBR2
LBR3
PXI Star
Slot 3
LBLStar0
LBLStar1
LBLStar2
LBLStar3 LBR0
LBR1
LBR2
LBR3
PXI Star
Slot 4
3 1
2
* A Slot 2 device ties the PXI Star Line to the PXI 10 MHz clock
T
rigger 0
T
rigger 1
T
rigger 2
T
rigger 3
LBLStar0
LBLStar1
LBLStar2
LBLStar3
T
rigger 0
T
rigger 1
T
rigger 2
T
rigger 3
T
rigger 0
T
rigger 1
T
rigger 2
T
rigger 3