Contec AO-1604CI2-PCI, Руководство пользователя

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3. External Connection
AO-1604CI2-PCI
37
Analog Output Signal Connection
The sections below describe how to connect the signals using flat cable and shielded cable.
Connecting example of voltage output
The following figure shows an example of optional flat cable (PCA37P) connection.
Connect the CN1 analog output channels and ground to the external device's input and ground.
Voltage Output 0...3
Analog Ground 0...3
Target BOARD Cable CN1
Digital Multi-Meter etc.
MOSFET Relay
+
-
Figure 3.3. Connection of voltage output (Flat Cable)
The following example connects a signal source to the board using a shielded cable. Use shielded
cable if the distance between the board and loading is long or if you want to provide better protection
from noise. Use the core of the shielded cable to connect the analog output of CN1 to the input of the
external device and use the shield braid to connect the CN1's analog ground to the external device's
ground.
CN1
Target
Coaxial cable
Voltage Output 0...3
Analog Ground 0...3
BOARD
MOSFET Relay
Digital Multi-Meter etc.
+
-
Figure 3.4. Analog Output Connection (Shield Cable)
CAUTION
- If the board and the target receive noise or the distance between the board and the signal source is
too long, data may not be input properly.
- The maximum output current-carrying capacity of the analog output signal is ±5 mA. Check the
specifications of the target before connecting the board to it.
- Do not connect any of the outputs and power outputs to the analog or digital ground.
- Do not connect the analog output signal to the other analog output signal and output signal of
external device. Doing so may malfunction.
- Do not plug or unplug the interface connector to or from while the PC or external device power is
turned on. Doing so may malfunction.
- The DA converter may cause glitches as it contains no deglitcher.