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 0 11=1
# Route USB to bottom of J2 (default)
gpioset 0 11=0