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Green PXI module with metal front panel and silver ejector handle

National Instruments

National Instruments 778572-67 PXI-2567 64-Channel 50 VDC Driver Module measurement

SKU CH-8SWW-HPQA1 MPN 778572-67

Provides 64 channels of 50 VDC switching with 600 mA per channel and 25 A total module current

  • 64 channels simplify large switching systems
  • 50 VDC external drive handles higher-voltage loads
  • 600 mA per channel supports varied actuators
  • Internal 5 V at 1.25 A powers logic directly
  • 25 A module capacity enables dense configurations

Product identity

The National Instruments 778572-67 is a PXI-2567 driver module built for automated test systems that need high-density switching. It provides 64 independent channels in a single PXI slot, making it suitable for engineers who require dense channel counts without expanding chassis space.

Channel capacity and power limits

Each of the 64 channels can sink up to 600 mA from an external supply of up to 50 VDC, while the module as a whole is rated for 25 A total drive current. Internal rail power is limited to 5 V at 1.25 A and 12 V at 0.5 A, so loads that exceed these per-channel or per-module ratings will require external distribution.

Build integration

The module occupies one PXI slot and draws its internal rail power from the chassis backplane, leaving the external 50 VDC supply to be provided by the test engineer. This arrangement frees front-panel space for high-density cabling while keeping the chassis power budget predictable. It is not suited for applications that need more than 64 channels per slot or higher per-channel current.

How it compares

Measured against everything we stock in Test Equipment & Meters, at today’s prices. Recalculated every night.

Price $992.99
Pricier than about 91% of the 202 comparable items (median $148.99).

Specifications

No published specifications for this item yet.

Questions about this item

Will the PXI-2567 778572-67 draw power from my existing PXI chassis 5 V and 12 V rails?

Yes, the module uses internal drive power of 5 V at 1.25 A and 12 V at 0.5 A from the chassis backplane.

How can I confirm each of the 64 channels is switching correctly after installation?

Use the NI-SWITCH soft front panel or LabVIEW to run a channel-to-COM continuity test and verify 600 mA per channel operation.

Does the 778572-67 ship with the external 50 VDC supply needed for the driver outputs?

No, the external 50 VDC power source for the 25 A total drive current must be purchased separately.

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