
SW3
GIGABIT/FAST ETHERNET SWITCH TYPE SW3 (DIN)
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USER GUIDE - M0SW3D1905Iv04 - V04 May 2019
3
LED SIGNALLING
The SW3 has two basic LEDs (SRV and ON) and several specific LEDs associated with the
Fast Ethernet ports and SFP modules.
FIGURE 17 shows a front view of the SW3, showing the detail of the different LEDs. They
are described below.
FIGURE 17
LEDs in the SW3
Basic LEDs
SRV LED
Amber. It flashes when there is emission or reception activity
by the SRV serial service interface.
On LED
Green. It is permanently lit when the equipment is powered
with an external power-supply voltage.