D-Link dgs-1008d/i2 [10/32] Front panel components

D-Link DGS-1008D Unmanaged Gigabit Ethernet Switch

Front-Panel Components

The front panel of the Switch consists of LED indicators, 8(10/100/1000 Mbps) Ethernet ports.

Figure 1-1. Front Panel View of the switch

Comprehensive LED indicators display the status of the switch and the network.

LED Indicators

The LED indicators of the Switch include Power, 100/1000Mbps and Link/Act. The following shows the LED

indicators for the Switch along with an explanation of each indicator.

Figure 1-1. LED Indicators

LED Indicators

Comprehensive LED indicators display the conditions of the Switch and status of the network. A description of these LED indicators

follows (see LED Indicators). The LED indicators of the Switch include Power, Link/Act, 1000Mbps and 100Mbps.

 Power Indicator

This green indicator illuminates when the Switch is receiving power.

 Link / Act

This green indicator illuminates steadily when a port is connected to a station successfully and has

a good link. The indicator will blink to indicate that a port is transmitting or receiving data on the

network.

 Speed — 100Mbps/amber; 1000Mbps/green; 10Mbps/off

This indicator is amber-colored when the port is connected to a 100Mbps Fast Ethernet station. It is

green when the port is connected to a 1000Mbps Ethernet station. It is not illuminated when the

port is connected to a 10Mbps Ethernet station.

 Cable Diagnostic − LED Indications

When the Switch is booted, the Cable Diagnostic function is initialized and run. The Cable

Diagnostic function will detect three common faults in an Ethernet cable connecting the Switch to a

remote network device: an open circuit (a lack of continuity between the pins at each end of the

Ethernet cable or a disconnected cable), a short circuit (two or more conductors short-circuited),

and improper termination (a termination resistance greater than the specified 100 ohms). Any of

these common cable faults will be detected by the Cable Diagnostic function and the LEDs will

display the results of the Cable Diagnostic function as follows:

Open, Short, or Improper Termination − Speed LED: Amber − Link/Act LED: Off

Cable connection good − Speed LED: Green − Link/Act LED: Off

The Cable Diagnostic function operates only during the Switch boot (when the Switch is first

powered on.)