3. External Connection
ADI12-16(PCI)
45
Current Input
The following figure shows an example of optional flat cable (PCA37P) connection.
For each analog input channel on CN1, connect the "+" input to the signal and connect the "-" input to
the signal source ground. Also connect the analog ground on the board to the signal source ground.
Figure 3.9. Current Input Connection (Flat Cable)
The following example connects a signal source to the board using a shielded cable such as a two-
conductor shielded cable (PCD8PS) available as an option. Use shielded cable if the distance between
the signal source and board is long or if you want to provide better protection from noise. For each
analog input channel on CN1, connect the "+" input to the signal and connect the "-" input to the signal
source ground. Also connect the analog ground on the board and the signal source ground to the
shielding.
Figure 3.10. Differential Input Connection (Shield Cable)
-
If the signal source contains over 1MHz signals, the signal may effect the cross-talk noise between
channels.
-
When the analog ground is not connected, input data comes to be undetermined.
-
If the board and the signal source receive noise or the distance between the board and the signal
source is too long, data may not be input properly.
-
Voltage of an input analog signal to both [+] and [-] input should not exceed the 1-5V (relate to the
board analog ground). If it exceeds the maximum voltage, Even within the range scope, correct
data input may not be possible.
-
An input analog signal to both [+] and [-] input should not exceed the maximum input voltage
(relate to the board analog ground). If it exceeds the maximum voltage, the board may be
damaged.
-
Connect all the unused analog [+] and [-] input channels to analog ground.
CAUTION
Содержание ADI12-16(PCI)
Страница 1: ...PC HELPER Isolated high functional Analog Input Board for PCI ADI12 16 PCI User s Guide CONTEC CO TD ...
Страница 7: ...vi ADI12 16 PCI ...
Страница 15: ...1 Before Using the Product 8 ADI12 16 PCI ...
Страница 47: ...3 External Connection 40 ADI12 16 PCI Figure 3 2 Examples of Connecting Options ...
Страница 71: ...4 Functions 64 ADI12 16 PCI ...
Страница 81: ...5 About Software 74 ADI12 16 PCI Analog output Digital input and output ...
Страница 87: ...5 About Software 80 ADI12 16 PCI ...
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