Section 5 Signalling
The monitoring logic in RLM 01 indicates operating and possible error states via LEDs on the front panel. In normal operation, all yellow Act LEDs (flashing or continuous) and the green Pwr LED are lit. The two red Err LEDs are unlit. Any signalling configuration other than this indicates a communication or power supply error
The text (yellow, red, green) in the two following tables means that the corresponding LED is lit, thus displaying an operating or error state