Omega USB-4750 Appendix A, Isolated Digital Input, Isolated Digital Output, Isolated Counter

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

USB-4750 User Manual 18