Modern Cisco ASR 900 series routers feature a mini-USB Type B console port alongside the traditional RJ45 port. To use the USB interface, your management laptop needs a specific virtual COM port driver to "talk" to the Cisco hardware.
HKR, "Parameters", "LatencyTimer", 0x00010001, 1 HKR, "Parameters", "FlowControl", 0x00010001, 3 (RTS/CTS) asr9xxusbconsoledriverszip hot