©
National Instruments Corporation
9
SCXI-1305 Installation Guide
Circuit Diagram
You do not need to read this section to operate the SCXI-1305. The circuit
diagram in Figure 3 is optional information that you can use if you want
more details about the SCXI-1305 circuitry. Figure 3 shows the circuitry
for one of the eight analog channels.
Figure 3.
SCXI-1305 Circuit Diagram
Specifications
All specifications are typical at 25 °C unless otherwise specified.
Electrical
Compatible modules
SCXI-1120/D .................................. 8 input channels
SCXI-1121 ...................................... 4 input channels,
4 excitation output channels
1
SCXI-1125 ...................................... 8 input channels
SCXI-1126 ...................................... 8 input channels
1
The excitation output channels must be configured for DC coupling.
1 µF,
10%,
50V
1 µF,
10%,
50V
BNC
Inp
u
t
s
(open) G
(clo
s
ed) F
Mod
u
le
Inp
u
t
s
+
–
DC
AC
DC
AC
A
A
A
Tie
s
to
a
n
a
log gro
u
nd on the
S
CXI-1140
a
nd
S
CXI-1141/1142/114
3
.
On the
S
CXI-1120/D,
S
CXI-1121,
S
CXI-1125,
a
nd
S
CXI-1126,
it i
s
left flo
a
ting.
