BNC-2080 Board
Chapter 2
BNC-208X Series User Manual
2-4
© National Instruments Corporation
ACH 9
(-in)
ACH 1
(+in)
BNC Connector
Case
Channel 1
(Center)
To Input
Multiplexer
on MIO-16
Input Schematic for
ACH1
(DIFF mode)
BNC Connector
3
2
1
Channel 9
(Center)
Case
COMMON
DIFF
SE
+5 V
+5 V
AIGND
AIGND
R21
R15
R20
R4
R11
R3
C2
C
D
A
B
E
F
G
S2
AIGND
AISENSE
1
2
3
NRSE
RSE
Jumpers Installed
Here at Factory
W1
Figure 2-3. Onboard Equivalent Circuit for DIFF Mode
The components are numbered differently for each channel. Table 2-2 lists the components in each
channel and their correspondence to the circuit shown in Figure 2-3.
