ATEN CS-1754 CS-1758 - Manual (Page 51)

Firmware Upgrade Recovery
There are basically two conditions that call for firmware upgrade
recovery:
w When you begin a firmware upgrade, but decide not to proceed with it.
w When the Mainboard firmware upgrade fails.
Note: If one of the cascaded switches fails to upgrade successfully,
unplug it from the installation and perform the recovery and
upgrade operation independently. After it has been succussfully
upgraded, plug it back into the installation.
To perform a firmware upgrade recovery, do the following:
1. Unplug the switch’s power adapter cable.
2. Slide the Firmware Upgrade Recovery Switch (see p. 7) to the
Recover position.
3. Use the Firmware Upgrade Cable (provided with this unit), to connect
a COM port on your computer with the Firmware Upgrade Port of the
switch.
4. Plug the switch’s power adapter cable back in.
5. Follow the upgrade procedures that begin with the Starting the
Upgrade section (p. 40).
6. After the upgrade completes successfully, unplug the switch’s power
adapter cable, once again.
7. Slide the Firmware Upgrade Recovery Switch back to the Normal
position.
8. Plug the switch’s power adapter cable back in.
This completes the Firmware Upgrade Recovery operation, and your
switch is ready for use.
2003-11-14
CS-1754 / CS-1758 User Manual 45