VXIpc-486 Configuration and Installation
Chapter 2
VXIpc-486 Model 500 Series
2-4
© National Instruments Corporation
Configuration Options
Figure 2-1 shows the location of the VXIpc-486 Model 500 Series configurable components and
their physical location relative to some of the major circuit components. The factory jumper
settings are indicated in Figure 2-1 by the black rectangles. The jumper headers not shown in
Figure 2-1 are not user configurable and should not be populated with shunt jumpers.
Shunt jumpers should always be installed on W25 and W21. You may change the position of
these jumpers as required, but do not remove them completely.
VXIbus Slot and External CLK10 Configuration Options
Because the VXIbus slot and external CLK10 configuration options are interdependent, they are
discussed together in this section.
The external CLK10 interface is the SMB connector labeled CLK on the VXIpc-486 front panel.
The external CLK10 signal is a TTL-level signal.
Table 2-2 presents six different configuration options of the slot position and external CLK10,
including the factory default settings. Refer to the applicable configuration figures (Figures 2-2
through 2-7) that illustrate how to set up these options.
Table 2-2. VXIbus Slot Position and External CLK10 Configuration Options
Configuration
VXIbus
Slot
External
CLK10
Applicable Configuration Figures
W26
W25
W24
W32, W33,
W20
J16
W35, W36
A*
Slot 0
Disabled
2-2a
2-3a
2-4a
2-5a
2-6a
2-7a
B
Slot 0
Output
2-2a
2-3a
2-4a
2-5a
2-6b
2-7a
C
Slot 0
Input,
Unterminated
2-2a
2-3a
2-4b
2-5a
2-6c
2-7a
D
Slot 0
Input, 50
Ω
Terminated
2-2a
2-3a
2-4b
2-5a
2-6c
2-7b
E
Non-Slot 0
Disabled
2-2b
2-3b
2-4a
2-5b
2-6a
2-7a
F
Non-Slot 0
Output
2-2b
2-3b
2-4a
2-5b
2-6b
2-7a
* Factory Configuration
