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National Instruments Corporation
5
NI 9219 Calibration Procedure
Verification
This section provides instructions for verifying the NI 9219 specifications. Refer to Figure 1, Table 2,
and Table 3 for the channel assignments, signal names, and terminal assignments of the NI 9219.
Caution
The analog inputs on the NI 9219 are not grounded (floating). Ensure that a single point in
the test system is connected to ground to prevent the entire system from floating.
Note
The test limits listed in Tables 5, 7, 9, 11, 13, 15, 17, 19, 21, are derived using the values in
Table 24.
Figure 1.
NI 9219 Channel and Terminal Assignments
Table 2.
NI 9219 Signal Name
Terminal
Signal Name
Signal Description
1
T+
TEDS Data
2
T–
TEDS COM
3
EX+/HI
*
Positive excitation or input signal
4
HI
Positive input signal
5
EX–/LO
*
Negative excitation or input signal
6
LO
Negative input signal
*
Depending on the mode, terminals 3 and 5 are either the excitation signals or the input signals.
1
2
3
4
5
6
1
2
3
4
5
6
1
2
3
4
5
6
1
2
3
4
5
6
Ch 0
Ch 1
Ch 2
Ch 3
