Figure 8-1. pci e series signal connection scheme, Pxi e series devices, Pxi e series devices -2 – National Instruments Data Acquisition Device E Series User Manual

Page 124

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Chapter 8

Real-Time System Integration Bus (RTSI)

E Series User Manual

8-2

ni.com

Figure 8-1. PCI E Series Signal Connection Scheme

Refer to the

Timing Signal Routing

section of Chapter 7,

Digital Routing

,

for a description of the signals shown in Figure 8-1.

Note

In NI-DAQmx, you can indirectly route timing signals not shown in the above

diagrams to RTSI. For a detailed description of which routes are possible on your device,
in MAX, select Devices and Interfaces, your device, then select the Device Routes tab.

PXI E Series Devices

The RTSI trigger lines connect to other devices through the PXI bus on the
PXI backplane. RTSI <0..5> connect to PXI Trigger <0..5>, respectively.
This signal connection scheme is shown in Figure 8-2. The RTSI Clock is
connected to PXI Trigger 7. In PXI, RTSI 6 connects to the PXI star trigger
line, allowing the device to receive triggers from any star trigger controller

R

T

SI Bus Connector

RTSI Trigger 7

DAQ-STC

ai/StartTrigger

ai/ReferenceTrigger

ao/SampleClock

ao/StartTrigger

Ctr0Source

Ctr0Gate

Ctr0InternalOutput

Ctr0Out

ai/SampleClock

ai/PauseTrigger

ai/SampleClockTimebase

ao/SampleClockTimebase

Ctr1Source

Ctr1Gate

20MHz Timebase

Master Timebase

R

T

SI Switch

Switch

Trigger <0..6>

ai/ConvertClock

ao/PauseTrigger

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