Ronan X120 - Manual (Page 9)

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5.0 LED INDICATIONS
There are three LEDs on the controller board that indicate the status of the X120s and communication between
X120s and X110s. The operations of these LEDs are explained in the following sections.
5.1 Test Error LED (Red)
Refer to section 3.2.
5.2 Transmit Error LED (Red)
Refer to section 2.3.
5.3 Status/Run LED (Green)
The run/status LED indicates the connection between all the X120 multiplexers. All the run/status LEDs
should be flashing synchronously if connections between all the X120s are okay. The flashing rate
depends on the number of X120 multiplexers connected together and decreases by connecting more
X120(s) in the chain.
Note 1: If any of the X120 multiplexers is transmitting events, the run/status LEDs stop flashing
during the transmission time and stay on or off depending on its state which transmission
started.