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2 - 8 ONline Ethernet Management Module Installation and Operation Guide
Download in Progress LED
The Download in Progress LED displays a steady yellow glow when
software is being downloaded to the Flash EPROM on the EMM. See
Chapter 5, Software Download Instructions, for details on downloading
new software.
Note that you need the Firmware Distribution Kit3Com Firmware
Distribution Kit (part number 5000-FDK) to initiate the download of new
software provided in the Update Distribution Kit (part number
5101M-UDKx-x.xx).
Reset Button
The Reset Button resets the EMM and executes self-test diagnostic routines
(network traffic is not affected). You should press this button only when
you suspect problems with the EMM. The Reset Button is recessed to
prevent an accidental reset, yet you can access it with a pen tip or a small
screwdriver.
When the EMM is reset, it will come up under the last saved configuration
parameters. Pushing this button has the same effect as issuing the RESET
DEVICE command with one exception. Pushing the Reset button will cause
any unsaved changes to be lost. Issuing the RESET command on an EMM
after changes have been made but not saved causes a message to display
warning you that unsaved changes exist. The RESET command aborts and
cannot be executed until the SAVE command is issued.
RS-232 Serial Port
The 25-pin (DB-25) RS-232 serial port is a DTE male connector used to
connect the EMM to a terminal or modem so you can enter management
commands and download new software.