Specifications

Summit WM Technical Reference Guide, Software Version 5.3 77
To connect to the console port:
1 Install the virtual serial driver by Silicon Laboratories Inc. on the laptop. You only need to install the
serial driver once. You do not need to repeat installing the software each time you connect to the
port.
2 The CP210x USB to UART Bridge VCP drivers are provided by Silicon Laboratories Inc. Depending
on the OS of your computer, click on the appropriate "VCP Driver Kit" link on the web page given
below. Note that this URL is subject to change.
https://www.silabs.com/products/mcu/Pages/USBtoUARTBridgeVCPDrivers.aspx
3 With a normal USB (male A/B) cable, connect the B end to the Summit WM20 Controller and the A
end to the laptop. The driver recognizes the connection and installs a serial device (Com #).
To determine the actual number assigned to the device, navigate to Control Panel > System >
Hardware > Device Manager > Ports (COM & LPT).
4 Using a terminal program of choice (for example, Hyperterm) establish a connection to the Summit
WM20 Controller using the corresponding COM device.
The connection settings are 9600 8N1 no flow (9600 bps, 8 bits, no parity, 1 stop bit, no flow).
Summit WM Controller WM20 rescue procedure
The Summit WM20 Controller provides a separate rescue partition on which a minimal copy of the
kernel is installed. The partition is accessed as a special mode of the system’s bootloader. Rescue mode
boots into the rescue partition, loads the minimal kernel and corresponding filesystem. It also mounts
the primary system partitions as locally accessed mount-points. The user is then presented with a menu
as to how the system’s rescue is to proceed.
CAUTION
If the HDD has failed, use the Rescue procedure to revert to your previous image. You must first replace the
corrupted HDD with a new one that has the factory default image on it. You can then use the Rescue procedure to
revert to your previous image with your old configurations.
The Summit WM Controller WM20 supports the following methods for rescue:
● Local – Rescue file is directly present on filesystem
● Remote – Rescue file is located in a remote FTP server
Local rescue
The rescue partition contains a rescue image. The rescue image is typically installed at manufacturing
time, during the image cloning process. The user can select the Local rescue method to utilize the local
stored file as the rescue image.
Remote rescue
The remote method allows the user to directly install the rescue image as part of the download process.
By default the remote image is not stored in the local partition. The user is given the option to save
downloaded rescue image into the partition.