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VXIpc-486 Configuration and Installation
External Audio/Trigger Output Configuration
The external audio/trigger output interface is the SMB connector labeled AUDIO/TRG OUT on
the VXIpc-486 front panel.
You can configure the external audio/trigger output as either an audio output or a TTL trigger
output. The audio/trigger output is connected to the circuit card by a twisted-pair cable. You
can configure the audio/trigger output by connecting the cable to either J13 or J17. Table 2-3
shows the configuration options.
Table 2-3. External Audio/Trigger Output Configuration Options
Installed System RAM Configuration
The amount of installed RAM is factory configured per customer order. You can change the
amount of installed RAM on VXIpc-486/1 models by installing dynamic RAM single in-line
memory modules (DRAM SIMMs) in positions A1 and A2, as shown in Table 2-4 and
Figure 2-1.
Warning:
Do not attempt to change the factory RAM configuration of the VXIpc-486/2.
Disassembling the internal brackets in an attempt to expose the DRAM SIMM
sockets will void your warranty.
Installed RAM
VXIpc-486 Model 500 Series
External Audio/
Trigger Output
Trigger Out*
Audio Out
* Factory configuration
Table 2-4. Installed RAM Configuration Options
1 MB
256 KB x 36
2 MB
256 KB x 36
4 MB
1 MB x 36
5 MB
1 MB x 36
8 MB
1 MB x 36
16 MB
4 MB x 36
32 MB
4 MB x 36
Connected to
J17
J13
A2
Not Installed
256 KB x 36
Not Installed
256 KB x 36
1 MB x 36
Not Installed
4 MB x 36
2-10
© National Instruments Corporation
Chapter 2
A1
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