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Figure 4. NI SHC68-H1X38 Cable Parts Locator Diagram
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1. 68-pin VHDCI Connector
2. Removable Sleeving
3. Lead Pairs
You can use the SHC68-C68-D4 or C68-C68-D4 cable with the following accessories:
•
NI CB-2162—Single-ended digital I/O (DIO) accessory that can access the signals on the
68-pin DDC connector, terminate the DIO channels, and provide a platform for circuit
prototyping and DUT testing.
•
NI SMB-2163—Breakout box that offers coaxial SMB connectors for each channel on
the DDC connector, providing an easy way to connect to other devices for testing and
debugging.
Note
When connecting to the CB-2162 or SMB-2163 accessories, NI 6581/6581B
signals map in the following ways:
•
P0.<0..7> map to DIO <0..7>
•
P1.<0..7> map to DIO <8..15>
•
P2.<0..7> map to DIO <16..23>
•
GLOBAL CLOCK <0..1> map to STROBE
For information about connecting I/O signals, refer to the NI FlexRIO Help, available from the
Start menu and at ni.com/manuals.
Power Options
You can power the NI 6581/6581B internally, or externally through a variable power supply.
The following diagram illustrates a power circuitry diagram with an external variable power
supply.
8 | ni.com | NI 6581/6581B Getting Started Guide
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