Measurement Computing USB-5203 - Manual (Page 29)

USB-5203 User's Guide Specifications
29
USB +5V voltage
Table 16. USB +5 V voltage specifications
Parameter Specification
USB +5 V (VBUS) input voltage
range 4.75 V min to 5.25 V max
Power
Table 17. Power specifications
Parameter Conditions Specification
Connected to USB
Supply current USB enumeration <100 mA
Supply current (Note 3) Continuous mode 500 mA max
+5 V output voltage range
(pins 21 and 47) Connected to a self-powered hub. (Note 4) 4.75 V min to
5.25 V max
+5 V output current
(pins 21 and 47) Connected to a self-powered hub. (Note 4) 10 mA max
Isolation Measurement system to PC 500 VDC min
AC Adapter Power Supply (used for data logging operation)
Output voltage 5 V ±5%
Output wattage 2.5W
Input voltage 100 VAC to 240 VAC
50 Hz to 60 Hz
Input current 0.2 A
Note 3: This is the total current requirement for the device which includes up to 10 mA for the status LED.
Note 4: Self-powered hub refers to a USB hub with an external power supply. Self-powered hubs allow a
connected USB device to draw up to 500 mA. This device may not be used with bus-powered hubs due
to the power supply requirements.
Root Port Hubs reside in the PC USB host controller. The USB port(s) on your PC are root port hubs.
All externally powered root port hubs (desktop PC) provide up to 500 mA of current for a USB device.
Battery-powered root port hubs provide 100 mA or 500 mA, depending upon the manufacturer. A
laptop PC that is not connected to an external power adapter is an example of a battery-powered root
port hub.
USB specifications
Table 18. USB specifications
Parameter Specification
USB device type USB 2.0 (full-speed)
Device compatibility USB 1.1, USB 2.0
Self-powered, 500 mA consumption max
USB cable type A-B cable, UL type AWM 2725 or equivalent. (min 24 AWG VBUS/GND,
min 28 AWG D+/D–)
USB cable length 3 m (9.84 ft) max