National Instruments 321906B-01 用户手册
Chapter 2
NI 2501/2503 Operation
©
National Instruments Corporation
2-3
Figure 2-2. NI 2503 Module Block Diagram
Front Connector
PXIbus Connector
CH0
CH5
Com0
CH6
CH11
CH12
CH17
CH18
CH23
Com1
Com2
Com3
AISENSE
Cold Junction Sensor
Relay Mux
Relay Mux
Relay Mux
Relay Mux
Relay Mux
One Wire /
Two Wire
Select
Relay Control
T
riggers
PXI Interface
Scan Memory
Analog Bus0
Analog Bus1