TS-7250-V3 USB Ports
From embeddedTS Manuals
The TS-7250-V3 has 2 USB type A host ports. The bottom USB host port can optionally be routed to the #XBEE Header for USB cell modems.
# Route USB to XBEE
gpioset 209c000.gpio 11=1
# Route USB to bottom of J2 (default)
gpioset 209c000.gpio 11=0
Power can also be controlled to save power or reboot peripherals in the field.
gpioset 20a4000.gpio 0=0 # Turn off USB Power
gpioset 20a4000.gpio 0=1 # Turn on USB power