ATEN CS1644 - Manual (Page 29)

Chapter 4. Keyboard Port Operation
21
USB Reset
If the USB loses focus and needs to be reset, do the following:
1. Invoke HSM (see page 18).
2. Press and release [F5]
Hotkey Beeper Control
The Beeper can be hotkey toggled On and Off. To toggle the Beeper, do the
following:
1. Invoke HSM (see page 18).
2. Press and release [B].
The Beeper toggles On or Off.
Disable Port Switching Keys
To disable the Port Switching Keys ([Scroll Lock] [Scroll Lock] / [Ctrl] [Ctrl]),
do the
following:
1. Invoke HSM (see page 18).
2. Press [X] [Enter].
Note: This procedure is a toggle. To enable the Port Switching keys repeat
steps 1 and 2.
Firmware Upgrade Mode
To set the CS1642 / CS1644 to Firmware Upgrade Mode, do the following:
1. Invoke HSM (see page 18).
2. Key in: upgrade
3. Press [Enter].
The front panel LEDs flash to indicate Firmware Upgrade Mode is in
effect.
Note: To exit Firmware Upgrade Mode, you must power off the switch.