Owner`s manual

3–20 DEChub 900 MultiSwitch Owners Manual
[9] Downline Upgrade
Downline upgrade option allows you to upgrade the Hub Manager firmware and
network module firmware (in nonvolatile Flash memory). It prompts you to enter
the IP address of your TFTP (Trivial File Transfer Protocol) load host and the
image file name.
The following is an example of an image file name and an IP address:
mam_dh900.bin and 16.20.54.155
The format of the image file name is specified according to the conventions used by
your TFTP load server.
CAUTION
!
If power is interrupted while a downline load is in
progress, the firmware image can become cor-
rupted. Do not turn off power to the unit or perform
any action that can cause the unit to lose power
while a downline upgrade is in progress.
NOTE
The downline upgrade process normally runs for
approximately 4 minutes to completion. However,
the entire process could take as long as 10 min-
utes to complete when network traffic is extreme.
The following description takes you through the downline upgrade procedure and
explains the events that occur within each selection. A full screen example of the
setup screen display follows the description.
When you select the option, the initial setup screen display appears (see the follow-
ing example display). This screen identifies the option and alerts you to be sure that
the power to the device is not interrupted during the downline load.