[admin@MikroTik] > /system serial-terminal usb2 channel=2 [Ctrl-A is the prefix key] ATI Manufacturer: Option N.V. Model: GTM378 Revision: 2.3.3Hd (Date: Jul 17 2007, Time: 15:49:23) OK
reference : http://wiki.mikrotik.com/wiki/Option_Globetrotter_HSDPA_USB_Modem