SCXI-1129
The NI SCXI-1129 is a 256-channel crosspoint matrix/multiplexer switch module for SCXI. Its listed NI part number is 776572-29.

The NI SCXI-1129 is a 256-channel crosspoint matrix/multiplexer switch module for SCXI. Its listed NI part number is 776572-29.
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The SCXI-1129 provides matrix/multiplexer switching within an SCXI system. Its crosspoint architecture is intended for high-channel-count switching applications.
The supplied structured product data describes matrix expansion using additional modules, with analog connections through a high-voltage backplane, a matrix expansion cable and plugs connecting terminal blocks. Confirm the required interconnect hardware and supported configuration before planning an expanded system.
Only supported values belong in the table and schema.
| Supported Hardware Platform | Computer-Based Device — |
|---|---|
| Row Access | Yes — |
| NI part numbers | 776572-29 — |
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Exact revision confirmed when relevant.
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The SCXI-1129 is a 256-channel crosspoint matrix/multiplexer switch module for SCXI.
The preserved structured catalog data lists NI part number 776572-29.
Yes. Row access is marked as supported in the previously verified specifications.
NI provides a model-specific dimensional drawings page for the SCXI-1129 in its support documentation.