SW-2000M-CL-6573.2 Rear panel and indicatorsFig.2. Rear panel Status indicatorA multi-colour LED with the following functions:Green (steady)Normal operationGreen (flashing slowly)Busy, performing a time consuming operation like FFC calibration.Green (flashing rapidly)Performing firmware update or waiting for a firmware update to start. Orange (steady)Initializing Orange (flashing rapidly)Firmware update in progress.Do not disconnect the Ethernet cable.Do not switch off the power. RedInternal error Ethernet Link LEDGreen (steady)Connected to an active network device. This indicates the existence of a physicallink only. It does not indicate a valid TCP/IP network configuration. Ethernet Status LED Yellow (flashing)Activity indicator. Blinks shortly during data transfer.123