Measurement Computing USB-2020 - Manual (Page 22)

USB-2020 User's Guide Specifications
Power
Table 9. Power specifications
Parameter Specification
Supply voltage 9 VDC to 18 VDC ( MCC plug-in power supply CB-PWR-9 recommended)
Supply current 0.75 A max (Note 3)
Power jack configuration Two conductor, barrel
Power jack barrel diameter 6.3 mm
Power jack pin diameter 2.0 mm
Power jack polarity Center positive
+VO voltage range 4.50 V to 5.25 V
+VO current sourcing 10 mA max.
Note 3:
This is the total quiescent current requirement for the device that includes up to 10 mA for the Status
LED. This value does not include potential loading of the DIO bits or the +VO pin.
Environmental
Table 10. Environmental specifications
Parameter Specification
Operating temperature range 0 °C to 50 °C max
Storage temperature range –40 °C to 85 °C max
Humidity 0% to 90% non-condensing max
Mechanical
Table 11. Mechanical specifications
Parameter Specification
Dimensions (L × W × H) 142.24 × 180.34× 38.09 mm (5.6 × 7.1 × 1.5 in.)
Weight 1.5 lb
USB
Table 12. USB specifications
Parameter Specification
USB device type USB 2.0 (high-speed)
Device compatibility USB 2.0
USB cable type A-B cable, UL type AWM 2527 or equivalent. (min 24 AWG VBUS/GND,
min 28 AWG D+/D–)
USB cable length 3 m (9.84 ft) max
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