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Chapter 2: Overview
Table 2-3. LGB2118A LED functions.
LED Color Function
(1) System Power LED Green Lit when power is on.
(16) LINK/ACT LEDs
Steady green
Blinking green
Lit when connection with remote devi ce is good.
Blinks when any traffic is present.
(16) SPD LEDs
Green
Yellow
Off
Green when TP link is on 1000 Mbps speed.
Yellow when TP link is on 10/100 Mbps speed.
Off when no link is present.
1000SX/LX Gigabit fiber
port 17, 18
(2) LINK/ACT LEDs
Green
Yellow
Off
Green when SFP link is on 1000 Mbps speed.
Yellow when SFP link is on 100 Mbps speed.
Off when no link is present.

2.4.2 24-Port Gigabit Smart Switch Eco Fanless (LGB2124A)

Figures 2-3 and 2-4 show the front and back panels of the switch. Table 2-4 describes its components. Table 2-5 describes the
LEDs in detail.
7 1 2 3 4
5 6 8 9
Figure 2-3. LGB2124A front panel.
10
Figure 2-4. LGB2124A back panel.