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4-14
Cabling and Wiring
Connecting a Signal to a Differential Analog Input
Figure 4-13 shows three connection schemes for wiring a signal source to
a channel of a DAS-1800ST/HR Series board configured for differential
inputs.
Figure 4-13. Wiring a Signal Source to DAS-1800ST/HR Series Board
Configured for Differential Inputs
Channel n High
Floating
Signal
Source
+
-
LL GND
R
b
R
b
R
s
Channel n Low
Where R
s
> 100
Ω
R
b
= 2000 R
s
Channel n High
Floating
Signal
Source
+
-
LL GND
R
b
R
s
Channel n Low
Where R
s
< 100
Ω
R
b
= 1000 R
s
Channel n
High
DC
Supply
+
-
Channel n Low
LL GND
Bridge
R
s
R
v
DAS-1800ST/HR
Series Board
DAS-1800ST/HR
Series Board
DAS-1800ST/HR
Series Board
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