D-Link DES-1024R+ [14/20] Led indicators

10/100 Fast Ethernet Switch User’s Guide

LED Indicators

The LED indicators of the Switch include Power, 100M, Link/Act

(Link/Activity), and Slot. The LED indicators are used to facilitate

monitoring and troubleshooting of the Switch. The following shows the

LED indicators for the Switch along with an explanation of each

indicator.

Figure 3.3 The DES-1024R+ Switch LED indicators

♦ Power This indicator operates when the Switch is turned on. If

this indicator is not lit, check the AC power connector to ensure

proper insertion of the power cord.

♦ 100M The LED indicator lights green when a 100 Mbps device is

connected to a respective port. If a 10 Mbps device is connected to

a respective port, the LED indicator is OFF.

♦ Link/Act These LED indicators are lighted green when there is

a secure connection (or link) to a device at any of the ports. The

LED indicators blink green whenever there is reception or

transmission (i.e. Activity—Act) of data occurring at a port.

♦ Slot This LED indicator is lighted green when there is a secure

connection (or link) to an optional two-port 100BASE-FX (SC type)

module is installed in the front panel. Each port has its own LED,

designated as I and II. See 100M and Link/Act indicator

descriptions above for further information.