Technical Specifications Analog Input:16‑channel single‑ended or 8‑channel differential, 16‑bit resolution, maximum sampling rate 250 kS‑s Analog Output:2‑channel, update rate 900 kS‑s Digital I‑O:24‑channel bidirectional digital channel Counter‑Timer:4 independent channels External Signal Connector: VHDCI high‑density connector Power Source: power supplied by PCI‑Express slot bus Analog Input Range: ±10 V Timing Resolution:10 ns On‑board Input FIFO Buffer:4095 samples
Functional Features Multi‑channel synchronous signal sampling capability. Hardware timing and trigger control function. DMA high‑speed direct memory access data transmission. Compatible with LabVIEW and mainstream industrial development environment. On‑board FIFO buffer reduces data loss risk. Hardware over‑voltage protection for signal input channels.
Application Scenarios Industrial equipment performance test and measurement system. Laboratory signal data acquisition platform. Mechanical equipment condition monitoring system. Small‑scale industrial PC‑based control system. Signal simulation verification during safety instrument system debugging.
Performance Parameters Stable sampling accuracy under continuous high‑speed operation. Hardware trigger ensures precise signal capture time sequence. Over‑voltage protection prevents damage caused by abnormal input signal.
Material Composition High‑precision signal acquisition printed circuit board. Metal shielding and fixing bracket. Industrial grade signal processing integrated chips. Gold‑plated PCI‑Express golden finger contact.
Structural Features Standard half‑height PCI‑Express add‑on card structure. Metal fixed mounting bracket for industrial computer chassis. External VHDCI high‑density signal interface port. On‑board layout for signal conditioning and buffer circuits.
Working Principle External analog voltage signals go through front‑end conditioning circuit and convert into digital value by ADC chip. Digital data transmits to host computer memory via PCI‑Express bus. DAC chip converts digital commands from host computer into analog voltage output. Digital I‑O circuit reads and writes external digital logic level status.
Installation Requirements Insert hardware card into available PCI‑Express slot of industrial computer. Install matched official NI‑DAQ driver software. Connect external field signal with supporting VHDCI cable assembly. Guarantee sufficient heat dissipation capacity for industrial computer cabinet.
Usage Notes Official supporting driver software must be installed before operation. Input signal amplitude shall stay within rated voltage scope. Hot‑swap operation is forbidden under power‑on condition. Deploy shielded twisted‑pair cables for external signal wiring.
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