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Appendix A Specifications
A.1 Isolated Digital Input
Channels
Interrupt Inputs
Optical Isolation
Opto-isolator ResponseTime
Input Voltage
A.2 Isolated Digital Output
Channels
Optical Isolation
Opto-isolatorResponse Time
Output Voltage
Sink Current
A.3 Isolated Counter
Channels
Resolution
Base Clock
Frequency Measurement
External Input Divide
A.4 General
I/O Connector Type
Dimensions
Power Consumption 5 V @ 350 mA max.
Temperature
Relative Humidity
USB-4750 User Manual
16
DI0, DI8
2500 VDC
25 µs
5~50VDC, or dry contact
16
2500 VDC
25µs
5 ~ 40 VDC
100mA/ch. Max. 1.1A/total Max.
2 independent
32-bit counters (low 16bit by hardware and high
16bit by firmware)
External
Internal 20MHz max. mable clock sources
Input frequency from 0.1Hz to 1Mhz
2 to 65535
10-pin screw terminal *4
132 X 80 X 32 mm (5.2" X 3.2" X 1.3")
Operation
0~60° C (32~140° F) (refer to IEC 68-2-1, 2)
Storage
-20~70° C (-4~158° F)
5%~95% RH non-condensing (refer to IEC 68-2-1, 2)
18
8MHz max.
2 independent program-
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