Advantech PC-LabCard PCI-1784 - Manual (Page 29)

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Appendix A. Specifications
Encoder Output
Number of Axis 4 (independent)
Resolution 32-bit
w/ Digital Filter 1.0 MHz
Max. Quadrature
Input Frequency
w/o Digital
Filter
2.0 MHz
Digital Filter 4 stage
Drive Type Single-ended or differential
Counter Mode Quadrature, Up/Down, Count/Direction
Optical Isolation 2500 V
DC
Max. Input Pulse
Frequency
x 1, x 2, x 4
Sample Clock
Frequency
8, 4, 2, or 1 MHz
Timer
Resolution 8-bit
Time base 50 K, 5 K, 500, 50, 5 Hz
Isolated Digital Input
Number of Channel 4
Optical Isolation 2500 V
DC
Opto-isolator response time 25 µ s
Over-voltage Protect 70 V
DC
VIH (max.) 30 V
DC
VIH (min.) 10 V
DC
Input Voltage
VIL (max.) 3 V
DC
10 V
DC
1.7 mA (typical)
12 V
DC
2.1 mA (typical) Input Current
24 V
DC
4.4 mA (typical)
Isolated Digital Output
Number of Channel 4
Optical Isolation 2500 V
DC
Response time 20 µ s (max.)
Supply Voltage TTL level
Sink/Source Current 50 mA max./channel