National Instruments 3.21E+04 Manual De Usuario

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Chapter 4     Signal Connections
AT-MIO/AI E Series User Manual
4-16
 National Instruments Corporation
Analog Input Signal Connections
AT-MIO-16E-1, 
ΑΤ
-MIO-16E-2, AT-MIO-16E-10, 
AT-MIO-16DE-10, AT-MIO-16XE-10, AT-AI-16XE-10, 
AT-MIO-16XE-50 
The analog input signals are ACH<0..15>, AISENSE, and AIGND.  
The ACH<0..15> signals are tied to the 16 analog input channels of 
your AT E Series board.  In single-ended mode, signals connected 
to ACH<0..15> are routed to the positive input of the board PGIA.  
In differential mode, signals connected to ACH<0..7> are routed to 
the positive input of the PGIA, and signals connected to 
ACH<8..15> are routed to the negative input of the PGIA.
♦ ΑΤ
-MIO-64E-3
The analog input signals are ACH<0..63>, AISENSE, AISENSE2, 
and AIGND.  The ACH<0..63> signals are tied to the 64 analog 
input channels of the AT-MIO-64E-3.  In single-ended mode, 
signals connected to ACH<0..63> are routed to the positive input 
of the AT-MIO-64E-3 PGIA.  In differential mode, signals 
connected to ACH<0..7, 16..23, 32..39, 48..55> are routed to the 
positive input of the PGIA, and signals connected to ACH<8..15, 
24..31, 40..47, 56..63> are routed to the negative input of the PGIA.
Warning: Exceeding the differential and common-mode input ranges distorts your 
input signals.  Exceeding the maximum input voltage rating can damage 
the AT E Series board and the PC.  National Instruments is 
NOT
 liable for 
any damages resulting from such signal connections.  The maximum input 
voltage ratings are listed in Tables 4-1 through 4-4 in the 
Protection 
column.
In NRSE mode, the AISENSE and AISENSE2 signals are connected 
internally to the negative input of the AT E Series board PGIA when 
their corresponding channels are selected.  In DIFF and RSE modes, 
these signals are left unconnected. 
AIGND is an analog input common signal that is routed directly to the 
ground tie point on the AT E Series boards.  You can use this signal for 
a general analog ground tie point to your AT E Series board if 
necessary.
Connection of analog input signals to your AT E Series board depends 
on the configuration of the analog input channels you are using and the 
type of input signal source.  With the different configurations, you can