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Hotkey Operation
USB Reset
If the USB loses focus and needs to be reset, do the
following:
1. Invoke Hotkey Mode
2. Press and release F5 function key
Hotkey Beeper Control
The beep sound the KVM makes when switching
can be Toggled ON and OFF by doing the following:
1. Invoke Hotkey Mode
2. Press and release B
Disable Port Switching Keys
To disable the port switching keys (Scroll Lock or Ctrl),
please do the following:
1. Invoke Hotkey Mode
2. Press [X] [Enter]
Note: This procedure is a toggle. To re-enable the
keys, repeat the procedure above.
Firmware Upgrade Mode
To set the GCS1772/GCS1774 in firmware upgrade
mode:
1. Invoke Hotkey Mode
2. Key in:
upgrade
3. Press [Enter]
Note: The front panel LEDs will flash to indicate that
the KVM is in firmware upgrade mode. To exit firmware
upgrade mode, you must power off the switch.