Understanding System LEDs

The TCA8000 and TCA8500 Timing Servers have four LEDs, which indicate:

Power (PWR)

Indicates that the Timing Server is receiving power

Critical (CRT)

Indicates that the Timing Server has generated a CRITICAL alarm

Major (MAJ)

Indicates that the Timing Server has generated a MAJOR alarm

Minor (MIN)

Indicates that the Timing Server has generated a MINOR alarm

Port LEDs

The network Ethernet port—LAN—has integrated Sync and Activity LEDs embedded in the RJ45 connector.

IEEE 1588-2008 Sync LED

The SYNC LED provides a status indication of the IEEE 1588-2008 Link:

Yellow

Acquire State

Green

Frequency & Phase Lock State