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10/100 Fast Ethernet Switch User’s Guide
16
Identifying External Components
LED Indicators
The LED indicators of the Switch include Power, 100 M, Link/Act
(Link/Activity) and FDX/Col (Full-duplex/Collision). 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 7 The DES-1004 Switch LED indicators
Figure 8 The DES-1008 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 and that the power switch is turned ON.
♦ 100 M. The LED indicator lights green when a 100 Mbps device is
connected to a respective port or the uplink port. If a 10 Mbps device