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10/100 Auto Negotiation Switch User's Guide
DES-3224 LED Panel
The LED panel of the DES-3224 displayed in Figure 5, allows you to manage the DES-3224
at a glance.
10Mbps
Link
100 Mbps
Full
Figure 5: DES-3224 LED Panel
Speed/ Link/ Activity LED
The 10/100 Mbps, Link, and Activity are combined into one LED. See Table 5: DES-3224
Speed/ Link/ Act LED.
All ports auto negotiate the proper speed and duplex mode when a cable is plugged in. The
10 Mbps/ 100 Mbps LED indicates the speed the port is working at. The LED is amber when
the port is at 10 Mbps. The LED is green when the port is at 100 Mbps.
The Link LED indicates that there is a link at the port. If a cable is plugged into the port and
the link LED is off, check the connection.
The Act (Activity) LED indicates that there is transmission (Tx) or reception (Rx) on the
port. The LED flashes amber when the port is transmitting or receiving data at 10 Mbps. The
LED flashes green when the port is transmitting or receiving data at 100 Mbps.
Table 5: DES-3224 Speed/ Link/ Act LED
Status
Color
On
Flashing Amber
On
Flashing Green
Off
Dark
Full/ Half LED
The Full/Half LED indicates the duplex mode of the port. Full duplex means that data is
being transmitted and received at the same time. Half duplex means that data is only being
transmitted or received in one direction at a time. See Table 6: DES-3224 Full/ Half LED.
LEDs
Power
Act
Half
Utilization
Meaning
Port speed is 10 Mbps, link is up and data is passing
through the port.
Port speed is at 100 Mbps, link is up and data is passing
through the port.
No link at this port.
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