National Instruments NI 7831R - Manual (Page 20)

© National Instruments Corporation 2-1 NI 7831R User Manual
2
Hardware Overview
of the NI 7831R
This chapter presents an overview of the hardware functions and
I/O connectors on the NI 7831R.
Figure 2-1 shows a block diagram for the NI 7831R. Figure 2-2 shows the
parts locator diagram for the NI PXI-7831R. Figure 2-3 shows the parts
locator diagram for the NI PCI-7831R.
Figure 2-1. NI 7831R Block Diagram
+
AI+
AI–
PCI/PXI/CompactPCI Bus
Input Mux
Instrumentation
Amplifier
Input Mode Mux
AISENSE
AIGND
16-Bit
DAC
x8 Channels
2
x8 Channels
Configuration
Flash
Memory
User-
Configurable
FPGA on RIO
Devices
Bus
Interface
Connector 1 (DIO)
Connector 2 (DIO)
Data/Address/
Control
Digital I/O (16)
Digital I/O (40)
Digital I/O (40)
Calibration
DACs Configuration
Control
Connector 0 (MIO)
Calibration
DACs
Voltage
Reference
–
16-Bit
ADC
Temperature
Sensor
Calibration
Mux
RTSI/PXI Triggers
RTSI Bus
Address/Data
Control
PXI Local Bus (NI PXI-7831R only)