HighSecLabs SK21D-3 User Manual page 20

Keyboard Status Indication
In order to enhance usability, product provides keyboard status
indications via dedicated LEDs located on product front panel. To
maintain the required unidirectional connectivity between keyboard
and product, these indication are not given on the keyboard itself as
done with non-secure products
The keyboard status indications are given via 3 LEDs on the front
panel of the product:
20
Section 4 - Operation
• CL – CAPS Lock
• SL – SCROLL Lock
• NL – NUM Lock
The indications behave the same as the LEDs on the keyboard as if it
was connected directly to computer.
Switching from channel to channel may change the status of the
LEDs based on the current settings on the computer connected to
the active channel.
2-PORT SINGLE-HEAD SECURE KVM: SK21D-3 – DVI-I VIDEO, SK21P-3 – DISPLAYPORT VIDEO, SK21H-3 – HDMI VIDEO