Digi CM - Manual (Page 138)

Accessing the Boot Loader Program
138 Chapter 16
firmware if the Digi CM will no longer boot. It also provides a hardware testing
module that detects and tests hardware components on the unit.
To access the Boot Loader program, do the following:
1. Connect the Ethernet cable from the console port on the rear panel of the
Digi CM to a serial port on a workstation. Use the Ethernet cable packaged
with the Digi CM and attach the DB-9 adapter. The arrow in the following
graphic points to the Console Port.
2. Set up a terminal emulation program, such as HyperTerminal, using the
following port parameters: bps=9600, data bits=8, parity=none, stop bits=1,
and flow control=none.
3. Turn the power on to the unit.
4. Press ESC within 3 seconds of booting the unit to get Boot Loader menu.
Hardware Test Menu
The Boot Loader program provides a hardware test for detecting and testing
hardware components on the Digi CM. From the Boot Loader menu, choose
the number 3 to access the Hardware test. Options for several components
appear.
Disaster Recovery
The Digi CM provides a disaster recovery procedure in the event the
configuration data is destroyed or corrupted. The Digi CM automatically
restores a corrupted configuration file system to the factory default settings.
However, if the Digi CM fails to boot in spite of being reset to the factory default
settings, the firmware can be restored by using the Boot Loader program.
To restore the Digi CM to the factory default configuration settings, you will
need to use a TFTP or BOOTP server. To use the Boot Loader program to
flash new firmware, do the following:
1. Connect the console port on the rear panel of the Digi CM to a serial port
on a workstation. Use an Ethernet cable with a DB-9 adapter.
2. Set up a terminal emulation program such as HyperTerminal. Use the
following port parameters: bps=9600, data bits=8, parity=none, stop bits=1,
flow control=none
3. Reboot or power on the Digi CM.
4. Press the ESC key within three seconds of applying power to the device.
The following screen appears.
Console Port
back of Digi CM 32 shown