Connecting the VST Instrument and Agile Attenuator to a Coprocessor
- Updated2024-10-21
- 3 minute(s) read
Connecting the VST Instrument and Agile Attenuator to a Coprocessor
If you added an optional coprocessor to the system, connect the VST instrument to the coprocessor.
| VST | Coprocessor | Cable/Accessory | Cable Quantity |
|---|---|---|---|
| PXIe-5830/5831/5832/5841 | PXIe-6594 | SCB-42 | 1 |
| Nano-Pitch Male to Nano-Pitch Male OCuLink x4 Cable (NI part number 785486-01) | 2 | ||
| Mini-HDMI to Mini-HDMI (NI part number 143045-01) | 1 | ||
| PXIe-5830/5831/5832/5841 | PXIe-7903 | SCB-42 | 1 |
| Nano-Pitch Male to Nano-Pitch Male OCuLink x4 Cable (NI part number 785486-01) | 1 | ||
| Mini-HDMI to Mini-HDMI Cable (NI part number 143045-01) | 1 | ||
| Nano-Pitch Male to Mini-SAS HD Male OCuLink x4 Cable (NI part number 786215-01) | 1 | ||
| PXIe-5842 | PXIe-7903 | Mini-HDMI to Mini-HDMI Cable (NI part number 143045-01) | 1 |
| Mini-SAS zHD-Mini-SAS zHD HSS Passive Cable (NI part number 788927-01) | 2 |
Note The mmWave radio heads are not supported with the
Agile Attenuator.
Make the appropriate coprocessor connections for your VST.
- If your VST instrument is a PXIe-5830/5831/5832/5841, make the following
connections to the coprocessor through the SCB-42.
- Use a Nano-Pitch Male to Nano-Pitch Male OCuLink x4 Cable to
connect the VST instrument to the SCB-42 as listed in the
following table.
Table 23. VST-to-SCB-42 Connection VST Instrument SCB-42 Port Model Port PXIe-5830/5831/5832/5841 DIO MGT In - Use the appropriate cable to connect the coprocessor to the
SCB-42 as listed in the following table.
Table 24. Coprocessor-to-SCB-42 Connections Coprocessor SCB-42 Port Model Port PXIe-6594 DIO MGT Out PXIe-7903 8 MGT Out - Use a Mini-HDMI to Mini-HDMI Cable to connect Agile Attenuator
to SCB-42 as listed in the following table.
Table 25. Agile Attenuator-to-SCB-42 Connection Agile Attenuator Port SCB-42 Port DIO DIO Out
Refer to the cabling diagrams for more information.
Figure 1. PXIe-5830/5831/5832/5841 VST Instrument, Agile Attenuator, and PXIe-6594 Coprocessor Connections 
Figure 1. PXIe-5830/5831/5832/5841 VST Instrument, Agile Attenuator, and PXIe-7903 Coprocessor Connections 
- Use a Nano-Pitch Male to Nano-Pitch Male OCuLink x4 Cable to
connect the VST instrument to the SCB-42 as listed in the
following table.
- If your VST instrument is a PXIe-5842, make the following connections to
the coprocessor.
- Use a Mini-HDMI to Mini-HDMI Cable to connect the VST instrument
to the Agile Attenuator as listed in the following table.
Table 26. VST-to-Agile Attenuator Connection VST Instrument Port Agile Attenuator Port DIO DIO - Use two Mini-SAS zHD-Mini-SAS zHD HSS Passive Cables to connect
the VST instrument to the coprocessor as listed in the following
table.
Table 27. VST-to-Coprocessor Connections VST Instrument Port Coprocessor Port 0 4 1 5
Refer to the cabling diagrams for more information.
Figure 1. PXIe-5842 VST Instrument, Agile Attenuator, and PXIe-7903 Coprocessor Connections 
- Use a Mini-HDMI to Mini-HDMI Cable to connect the VST instrument
to the Agile Attenuator as listed in the following table.