DAQ system PCI-DIO6402 Manual do utilizador - Página 8

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3. Digital Output Circuit

+3.3V

out0

out1

out63

Figure 3-1 shows that the digital output is isolated by photo-coupler. The "OUT_POWER" is

connected commonness to an output circuit. The "OUT_VDD" works external power or 5V PCI of

internal board or ISO 5V (DC-DC Output power) according to connector J2 jumper setting. The

"OUT_VDD" connects an anode of Clamp-Diode for protecting board's circuits. Generally, it had better

use the external power 5V.

330

[Figure 3-1. Digital Output Circuit]

PCI-DIO6402 Users Manual (Rev 1.0)

OUT_POWER

OUT_VDD

DOUT0

DOUT1

DOUT63

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