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USB-1616HS-2 User's Guide Functional Details
17
Figure 5. USB-1616HS-2 components – rear view
External power connector
Although the USB-1616HS-2 is powered by a USB port on a host PC, an external power connector may also be
required to provide sufficient power for the USB-1616HS-2.
Connect the optional TR-2U power supply to the external power supply connector. This power supply provides
9 VDC, 1 A power to the USB-1616HS-2.
External power
connector
Counter and digital I/O (port C)
screw terminal blocks
Counter and digital I/O (port B)
screw terminal blocks
Timer and digital I/O (port A)
screw terminal blocks
USB connector
Device "Active"
LED
External
"Power" LED