4. LED Indicators
LED Color Function
PWR Green Lights to indicate that the Switch is powered on.
1000 Green
Lit: indicate that the port is operating at 1000Mbps.
Off: indicate that the port is operating at 10Mbps or 100Mbps.
LNK/ACT Green Lit: indicate the link through that port is successfully established.
Blinks to indicate that the Switch is actively sending or receiving data over that port.
5. Switch Rear Panel
Figure 1-5 & 1-6 & 1-7 & 1-8 shows a rear panel of GSD-503 / GSD-504 / GSD-803 / GSD-804.
Figure 5-1 GSD-503 rear panel Figure 5-2 GSD-504 rear pane
Figure 5-3 GSD-803 rear panel Figure 5-1 GSD-804 rear panel
Power Notice:
1. The device is a power-required device, it means, it will not work till it is powered. If your networks should active all
the time, please consider using UPS (Uninterrupted Power Supply) for your device. It will prevent you from
network data loss or network downtime.
2. In some area, installing a surge suppression device may also help to protect your Switch from being damaged by
unregulated surge or current to the Switch or the power adapter.
