D-Link DES-1250G Quick Installation Manual - Led Indicators
4
10/100BASE-TX Twisted-Pair Ports (Port1~48)
These ports support network speeds of either 10Mbps or 100Mbps,
and can operate in half- and full- duplex transfer modes. These ports
also support automatic MDI/MDI-X crossover detection, giving true
“plug and play” capability. Just plug the network cable directly into the
hub; you can use either straight-through or crossover cable.
1000BASE-T Twisted Pair Ports (Port 49~50)
The DES-1250G is equipped with two Gigabit twisted pair ports that
are auto negotiable 10/100/1000Mbps and also support auto
MDI/MDIX crossover detection. These two ports can operate in half-
and full- duplex modes.
Mini-GBIC Ports (Option Port 49~50)
The Switch is equipped with two mini-GBIC ports, supported optional
1000BASE-SX/LX mini-GBIC module.
Note: When the port is set to “Forced Mode”, Auto MDI/MDIX will
be disabled.
LED Indicators
LED stands for Light-Emitting Diode
.
The front panel LEDs provide instant status feedback and simplify
monitoring and troubleshooting tasks.
LED indicators of the Switch
Power LEDs
On
When the Power LED light is on, the Switch is
receiving power.
Off
When the Power LED light is off, the power cord is
improperly connected.