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Lantronix
SM24TBT2DPA and SM24TBT2DPB Web User Guide
5-3.2 Firmware Selection
This page provides information about the active and alternate (backup) firmware images in the device and
lets you revert to the alternate image. The page displays two tables with information about the active and
alternate firmware images.
Note
:
1. If the active firmware image is the alternate image, only the "Active Image" table is shown. In this
case, the Activate Alternate Image button is also disabled.
2. If the alternate image is active (due to a corruption of the primary image or by manual intervention),
uploading a new firmware image to the device will automatically use the primary image slot and
activate this.
3. The firmware version and date information may be empty for older firmware releases. This does not
constitute an error.
To swap Firmware images in the web UI:
1. At Maintenance > Firmware > Firmware Selection verify the displayed version.
2. If desired, check the Always On PoE checkbox.
3. Click the Activate Alternate Image button.
Figure 5-3.2 Software Image Selection page
Image
: The flash index name of the firmware image. The name of the active (current) image is
managed
,
the alternate image is named
managed.bk
.
Version
: The version of the firmware image (e.g.,
SM24TBT2DPA (standalone) VB6.64.0043
).
Date
: The date and time when the firmware was produced (e.g.,
2022-01-07T14:43:10+08:00
).
Always On PoE :
check the box to maintain PoE power to PDs during the software operation. If you
check this button, when the switch warm restarts, it will continue providing PoE power to the PDs.
Note 1:
It will take 75 - 80 seconds to have PoE++ power on the ports to power PDs again if the switch
makes a cold restart. The "Always on PoE" feature has no effect on this time.
Note 2:
The “Ultra-fast PoE”
feature improves PoE startup time; it provides PoE output to attached PDs within five seconds after a cold
start.
Buttons
:
Activate Alternate Image:
Click to activate the “Alternate Image”. This button may be disabled depending
on system state.
Cancel:
Cancel activating the backup image. Navigates away from this page.