User manual
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Features
PCI-1784U
Specifications
Encoder Input
  Number of Axes  4 (independent)
  Resolution  32-bit
  Max. Quadrature Input  1.0 MHz with digital filter 
2.0 MHz without digital filter
  Digital Filter  4 stage
  Drive Type  Single-ended or differential
  Counter Modes  Quadrature, up/down, pulse/direction
  Isolation Protection  2,500 V
DC
  Max. Input Pulse Freq.  x 1, x 2, x 4
  Sample Clock Freq.  8, 4, 2, or 1 MHz
Input Range
  Single Ended  Logic 0 : 0.8 V max. 
Configuration  Logic 1 : 2.8 V min. (12 V max.)
  Differential  Logic 0 : -0.2 V max. 
Configuration  Logic 1 : 0.2 V min. (±12 V max.)
Isolated Digital Input
  Channels  4
  Input Voltage  Logic 0 : 3 V max. 
Logic 1 : 10 V min. (30 V max.)
  Interrupt Capable Ch.  DI0 ~ DI3
  Isolation Protection  2,500 V
DC
  Opto-Isolator Response 100 µs
  Overvoltage Protection  70 V
DC
Isolated Digital Output
  Channels  4
  Compatibility  5V
  Isolation Protection  2,500 V
DC
  Output Voltage  Logic 0: 0.8 V min. 
Logic 1: 2.0 max.
  Sink/Source Current  50 mA max./channel
  Opto-Isolator Response 2 us
Counter/Timer
  Channels  4
  Resolution  32 bits
  Compatibility  5 V/TTL
  Max.Input Frequency  8 MHz
  Counter Modes  Quadrature, 2-pulse, pulse/direction
  Interrupt Capable Ch.  Counter0 ~ Counter3
  Digital Noise Filter  4 stage
General
  Bus Type  Universal PCI V2.2
  Connectors  37-pin D-sub female connector
  Dimensions (L x H)  175 x 100 mm (6.9" x 3.9")
  Power Consumption
T
ypical: +5 V @ 200 mA 
Max.: +5 V @ 450 mA
  Operating Temperature  0 ~ 60°C (32 ~ 140°F)
  Storage Temperature  -20 ~ 70°C (-4 ~ 158°F)
  Storage Humidity  5 ~ 95% RH, non-condensing (refer to IEC 68-2-3)
  Certification  CE
Ordering Information
  PCI-1784U  4-axis Quadrature Encoder and Counter Card
  PCL-10137H-3E  High-speed DB37 Cable, 3 m
  ADAM-3937  DB37 DIN-rail Wiring Board
  4 x 32-bit up/down counters
  Single-ended or differential inputs
  Pulse/direction and up/down counter
  x1, x2, x4 counts for each encoder cycle
  Optically isolated up to 2,500 V
DC
  4-stage digital filter with selectable sampling rate
  Onboard 8-bit timer with wide range time-base selector
  Multiple interrupt sources for precision application
  4 x isolated digital input and 4 x isolated digital output
  BoardID™ switch
4-axis Quadrature Encoder and 4-ch Counter
Universal PCI Card with 8-ch Isolated Digital I/O
Introduction
PCI-1784U is a 4-axis quadrature encoder and counter add-on card for PCI bus. The card includes four 32-bit quadruple A/B phase encoder counters, 8-bit timer with multi range 
time-base selector and 4 isolated digital inputs as well as 4 isolated digital outputs. Its flexible interrupt sources are suitable for motor control and position monitoring.
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DAQ Boards 
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Signal Conditioning
20
Industrial USB I/O 
Modules
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