ATEN KN Series 32-Port KVM over IP Switch with Dual Power/LAN (1-Local + 4-Remote Access) - Manual (Page 222)

KVM over IP Switch User Manual
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Adapter Firmware Upgrade Recovery
Should the adapter firmware upgrade procedure fail for one of the KVM
Adapter Cables and the adapter becomes unusable, the following adapter
firmware upgrade recovery procedure will resolve the problem:
1. Unplug the Adapter from the server it is connected to.
2. Slide its Firmware Upgrade Recovery Switch (located next to the Cat 5e
connector) to the RECOVER position.
3. Plug the Adapter back into the server.
4. Repeat the Adapter upgrade procedure.
After the Adapter has been successfully upgraded, unplug the Adapter from the
server it is connected to; slide the Firmware Upgrade Recovery Switch back to
the
NORMAL position; and plug the Adapter back in.