HP (Hewlett-Packard) 9112 Series ユーザーズマニュアル

• Installation

D/A CH1 is External

D/A CH2 is External

JP4(PCI-9112) JP5(cPCI-9112)

INTREF

ExtRef2

ExtRef1

INTREF

D/A CH1 is Internal

D/A CH2 is Internal

(default setting)

D/A CH1 is Internal

D/A CH2 is External

D/A CH1 is External

D/A CH2 is Internal

INTREF

ExtRef2

ExtRef1

INTREF

ExtRef2

ExtRef1

INTREF

ExtRef2

ExtRef1

INTREF

Figure 2.4 Analog Output Voltage Setting

The internal A/D reference voltage can be set to –5V or –10V by JP3.
The possible configurations are specified as Figure 2.5. Note that the
internal reference voltage is used only when the JP4 is set to internal
reference only.

Reference Voltage is

-5V (default setting)

J P 3

-10V

-5V

J P 3

-10V

-5V

Reference Voltage is

-10V

Figure 2.5 Internal Reference Voltage Setting

Note : If the -10V D/A reference voltage is selected, the D/A output

range is 0V~10V. On the other hand, if the -5V is selected, the
D/A output range is 0V~5V.