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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 Power Act
100 Mbps Full
Figure 5: DES-3224 LED Panel
Half Utilization
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
On
On
Off
Color
Flashing Amber
Flashing Green
Dark
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.
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
13
10/100 Auto Negotiation Switch User’s Guide
Table 6: DES-3224 Full/ Half LED
Status Color Meaning
On
Off
Green
Dark
Port is in Full Duplex
Port is in Half Duplex
Utilization LEDs
The Utilization LED indicates the percentage utilization of the CPU during normal operation.
The LED increments from left to right. The farther to the right they are, the greater the utilization of the CPU. The first six LEDs are green. The last two are amber.
The Utilization LED panel indicates if there is an error on the DES-3224 during the powering on process and identifies the type of error. See Chapter 6, Troubleshooting, for the System
Error LED Indicators table. The system error table indicates the error code and the recommended action.
LEDs
14
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