D-Link manual DES-3216 LED Panel, Power LED

10/100 Auto Negotiation Switch User’s Guide

Power LED

The power LED lights when the DES-3216 is powered on. The purpose is to confirm that the DES-3216 is getting adequate power. See Figure 4.

Table 2: Power LED

Status	Color
On	Green
Off	Dark

Meaning

DES-3216 is powered on

DES-3216 is powered off, check power cable and connection

DES-3216 LED Panel

The LED panel allows you to manage the DES-3216 at a glance. The first group of LEDs is numbered 1-8 and the second is numbered 9-16. The numbers on the LEDs corresponds to the numbers on the ports. See Table 3: DES-3216 LEDs for an explanation of the LEDs.

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 cable and connection.

The Act (Activity) LED indicates there is activity, either reception or transmission, at the port.

The 100/10 LED indicates the speed of the port. All ports will auto negotiate 100 Mbps or 10 Mbps.

The Full/ Half LED indicates the duplex mode the port is in. Ports in Full are operating at full duplex. Full duplex means the port is transmitting and receiving data simultaneously. Ports in Half are operating in half duplex. Half duplex means that data is only being transmitted or received in one direction at a time.

Managing the DES-3216 11