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Chapter 3
Table 3-2. Pin Assignments for the Lab/1200 I/O Connector (Continued)
†
These signals are not routed to screw terminals. All other signals on the I/O connectors are routed directly to
screw terminals (J1–J6) for convenient signal termination.
Table 3-3. MIO (J10) I/O Connectors Signal Summary
Signal Name
Pin Number
AIGND
2
AISENSE
19
ACH<0..7>
3, 5, 7, 9, 11,
13, 15, 17
DGND
24
33
+5 V
34
Others
Others
© National Instruments Corporation
Pin Numbers
Lab/1200 Connector
38
39
40
41
42
43
44
45
46
47
48
49
50
Description
Analog Input Ground—This pin provides the AC noise current return
point for the analog circuitry and for the onboard excitation supply. It is
also routed to a screw terminal.
Analog Input Sense—This pin is the reference node for the conditioned
strain gauge bridge signals. It is also routed to a screw terminal to
provide a reference for analog inputs on channels ACH<8..15>.
AISENSE is directly connected to the excitation supply return and is
earth-grounded. This makes AISENSE a low impedance reference;
therefore, all signals referenced to it
Analog Input Channels 0 through 7—These pins carry the conditioned
strain gauge bridge signals (referenced to AISENSE) to the DAQ board.
They are not routed to screw terminals.
Digital Ground—This pin is the reference for the +5 VDC power supply.
It is also routed to a screw terminal to provide a reference for the digital
signals at the screw terminals.
This pin establishes the DC return path for the onboard excitation supply.
It is not routed to a screw terminal.
+5 VDC Source—This pin provides DC power for the SC-2043-SG from
the MIO or MIO E Series board. It is not routed to a screw terminal.
The remaining pins are routed directly to screw terminals to provide easy
access to the additional analog, digital, and counter/timer I/O signals of
the DAQ board. Refer to the Signal Connections chapter in your DAQ
board user manual for pin descriptions.
3-5
Signal Names
EXTTRIG
EXTUPDATE*
EXTCONV*
OUTB0
GATB0
OUTB1
GATB1
CLKB1
OUTB2
GATB2
CLKB2
+5 V†
DGND†
be floating.
MUST
Signal Connections
SC-2043-SG User Manual
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