SWTGIGABIT/FAST ETHERNET SWITCH TYPE SWT 30/137USER GUIDE - M0SWTA1903Iv09 - V09 March 20193 LED SIGNALLINGThe SWT has two basic LEDs (SRV and ON) and several specific LEDs associated withthe Fast Ethernet ports and SFP modules.The location and identification of the LEDs according to the model are indicated in thefollowing sections.3.1 SWT WITH FRONT PORTSFIGURE 20 shows a front view of the SWT with front ports, showing the detail of thedifferent LEDs. They are described below.FIGURE 20 LEDs in the SWT with front portsBasic LEDsSrv LED Amber. It flashes when there is emission or receptionactivity by the SRV serial service interface.On LED Red. It is permanently lit when the equipment is poweredwith an external power-supply voltage.
