When configuring LEDs, you must connect the LEDs between the computer and the KV0004A switch.
The Black Box LED Monitor Identification Kit works with the ServSwitch Freedom, a 4-port keyboard/mouse switch for access to multiple computers. The Freedom is for fast switching between monitors and CPUs, and the LED Monitor Identification Kit enables users to quickly see which monitor/CPU the user is on.
When configuring the LEDs, connect the LED kit between the Freedom and the monitor.
LED Monitor Identification Kit for Freedom KVM Switch