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DES-3326 Layer 3 Fast Ethernet Switch User’s Guide
Power on
The DES-3326 switch can be used with AC power supply 100-240 VAC, 50 - 60 Hz. The power switch is
located at the rear of the unit adjacent to the AC power connector and the system fan. The switch’s
power supply will adjust to the local power source automatically and may be turned on without having
any or all LAN segment cables connected.
After the power switch is turned on, the LED indicators should respond as follows:
♦ All LED indicators will momentarily blink. This blinking of the LED indicators represents a reset
of the system.
♦ The power LED indicator will blink while the Switch loads onboard software and performs a self-
test. After approximately 20 seconds, the LED will light again to indicate the switch is in a ready
state.
♦ The console LED indicator will remain ON if there is a connection at the RS-232 port, otherwise
this LED indicator is OFF.
♦ The 100M LED indicator may remain ON or OFF depending on the transmission speed.
Power Failure
As a precaution in the event of a power failure, unplug the switch. When power is resumed, plug the
switch back in.
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