PCI-1720 & 1720U User Manual
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Chapter 3 Jumpers and I/O Connectors
PCI-1720 cards are Plug & Play compatible, i.e. the system BIOS assigns
the system resources such as the base address and the interrupt number
automatically. There are only 2 functions with 5 jumpers to configure to
your applications requirements. The following sections offer the neces-
sary information for setting the PCI-1720 card’s jumpers. You may need
to refer to the figure below for help in identifying jumper locations.
Figure 3.1: Jumper Locations (SW1 is only for PCI-1720U)
3.1 Jumper Settings
3.1.1 Using Jumpers to Set Current Sink Ranges
Jumpers JP1 to JP4 are used to select each channel’s current sink range,
either 4 ~ 20 mA or 0 ~ 20 mA. Jumpers JP1 to JP4 correspond with D/A
channel 0 to channel 3 respectively. In order to use the current sink
range, you have to set the PCI-1720U output voltage range to 0 ~ 5 V.
The figure below shows the correct jumper settings for the current sink
range.
Figure 3.2: Jumper Settings for Current Sink Range
JP1 to JP4
0 ~ 20 mA
4 ~ 20 mA
