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VXIpc-486 Configuration and Installation
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
VXIbus
Configuration
Slot
A*
Slot 0
B
Slot 0
C
Slot 0
D
Slot 0
E
Non-Slot 0
F
Non-Slot 0
* Factory Configuration
VXIpc-486 Model 500 Series
External
CLK10
W26
Disabled
2-2a
Output
2-2a
Input,
2-2a
Unterminated
Input, 50 Ω
2-2a
Terminated
Disabled
2-2b
Output
2-2b
2-4
Applicable Configuration Figures
W25
W24
W32, W33,
W35, W36
2-3a
2-4a
2-5a
2-3a
2-4a
2-5a
2-3a
2-4b
2-5a
2-3a
2-4b
2-5a
2-3b
2-4a
2-5b
2-3b
2-4a
2-5b
© National Instruments Corporation
Chapter 2
W20
J16
2-6a
2-7a
2-6b
2-7a
2-6c
2-7a
2-6c
2-7b
2-6a
2-7a
2-6b
2-7a
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