Rear panel USB ports 153
C USB device connection
Rear panel USB ports
Lenovo ThinkSystem DS Series controllers contain a USB (Universal Serial Bus) Device interface pertaining to
the Management Controller (MC). The Device interface is accessed via a port on the controller module face plate.
This appendix describes the USB Type B port labeled CLI, which enables direct connection between a
management computer and the controller, using the command-line interface and appropriate cable.
USB CLI port
Figure 105 USB device connection—CLI port
DS Series controllers feature a USB CLI port used to cable directly to the controller and initially set IP addresses,
or perform other configuration tasks. The USB CLI port employs a mini-USB Type B form factor, and requires a
specific cable and additional support, so that a server or other computer running a Linux or Windows operating
system can recognize the controller enclosure as a connected device. Without this support, the computer might not
recognize that a new device is connected, or might not be able to communicate with it.
For Linux computers, no new driver files are needed, but a Linux configuration file must be created or modified.
See also “Setting parameters for the device driver” (page 155). For Windows computers a special device driver file,
gserial.inf, must be downloaded from a CD or web site, and installed on the computer that will be cabled
directly to the controller’s CLI port. See also “Microsoft Windows” (page 154).
Emulated serial port
Once attached to the controller module, the management computer should detect a new USB device. Using the
Emulated Serial Port interface, the DS Series controller presents a single serial port using a customer vendor ID and
product ID. Effective presentation of the emulated serial port assumes the management computer previously had
terminal emulator installed. See also “Supported host applications” (page 154). Serial port configuration is
unnecessary.
IMPORTANT: Certain operating systems require a device driver or special mode of operation to enable proper
functioning of the USB CLI port. See also “Device driver/special operation mode” (page 154).
Connect USB cable to CLI port
on the canister face plate
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