About KVM & Related Products > AlterPath KVM > Activity LEDs

Activity LEDs
The KVM comes with paired LEDs positioned on each side of the following ports:
The following figure shows the position of the LEDs as they appear on the back of the KVM. The LEDs are designed to monitor the interface connections as described in LED Descriptions.
The diagram below shows a close up view of the LEDs on the back of the KVM. The LEDS monitor the AUX ports, ETHERNET, and CONSOLE ports as described in LED Descriptions.
LEDs on the KVM Management Ports
The LED numbers in the tables below correspond to the numbers in the previous figure.
Monitor KVM CAT5 video interface
Orange - Lights when an internally-generated signal is used. This occurs when the user is not connected to the port and in the OSD, or when the user is connected to a port, but a video signal is not present from the server.
Green - Lights when the server's video signal is used; this happens when the server is presenting a valid signal.
Monitor KVM CAT5 video interface
Green - Lights when the user is connected to port and a video signal is detected and "synchronized". This means that the KVM is presenting the signal to the station.
Orange - Lights when the video signal level is detected but not synchronized. Typically, this takes a very short amount of time (less than 1/3 second) for the KVM to synchronize to the server's video signal upon first connection.
OFF – Indicates the port is not open.
Orange – Lights when DTR (data terminal ready) signal is on (when the port is open).
OFF – Indicates no data activity.
Green – Blinks when data is either being received (RX) or transmitted (TX).
LK/ACT/COL
OFF – Indicates either link is not up or cable is not connected.
Green – Lights solid when the link is up and blinks when data activity occurs, with frequency proportional to traffic.
Orange – Blinks when collisions occur
Off – Indicates the link is 10baseT or no link is active.
Green – Steady when 100baseT link is active.
Green or Orange – Blinks when software is running properly.
Off or solid Green/Orange – During boot up, software crash, etc.
GP/HD
Monitor compact flash (HD) or other (GP)
Orange - Blinks when KVM is accessing the compact flash after bootup.

About KVM & Related Products > AlterPath KVM > Activity LEDs