Products Description
NI PCI/PXI-6704 16-bit 32-Channel Static Analog Output DAQ Board

Technical Specifications
Model:NI-6704(PCI-6704 / PXI-6704)
Brand:NI
Part No:777796-01(PXI version)
Product type:High Density Static Analog Output DAQ Device
Resolution:16-bit DAC
Analog Output:16 voltage output(-10.1~10.1V),16 current output(0.1~20.2mA)
Digital I/O:8 channels 5V TTL/CMOS
Max update rate:555.55 S/s
Connector:68-pin VHDCI
Bus:PCI or PXI 3U
Power:+5VDC
Dimension:PCI:220mm120mm20mm;PXI:216mm130mm20mm
Weight:0.24kg
Operating temperature:0℃ ~ +55℃
Storage temperature:-20℃ ~ +70℃
Relative humidity:10~90% non-condensing
Certification:CE
System compatibility
NI-6704 belongs to NI DAQ platform,supports NI-DAQmx driver and LabVIEW.It can be installed into PCI industrial PC or standard PXI chassis,widely used for transducer excitation,component parameter test and laboratory DC signal generation.It is spare part for legacy test equipment overhaul.
Function
NI-6704 is static analog output DAQ board with 32 AO channels.It provides independent voltage and current output for precision DC setpoint control.Onboard auto calibration circuit reduces drift error,8 TTL digital I/O for interlock and relay control.
Installation
Insert NI-6704 into PCI/PXI slot and fasten front bracket.Connect 68-pin VHDCI signal cable to terminal block.Install NI-DAQmx driver.Take ESD protection before installation.
Interface
‑68-pin VHDCI multi I/O connector
‑PCI/PXI backplane gold finger
‑Board status LED indicators
Feature
NI-6704 classic NI high density static analog output DAQ board.Typical faults:DAC drift,VHDCI connector pin oxidation,output circuit damage.Inspect connector and signal output before replacement.
Diagnostic
Fault phenomenon:analog output offset,unstable current/voltage, DIO no response.Check VHDCI wiring,PCI/PXI slot contact,NI-DAQmx driver and board calibration status.
Product Brief
NI-6704 is NI 16-bit high density static analog output DAQ board with 16 voltage and 16 current output plus 8 TTL DIO,for precision DC excitation and component test in lab and automated test systems.Mainly used for maintenance and replacement of old test equipment.ESD protection must be followed during handling.