500 Series Stackable Managed Switches 19
Gigabit LED (if present)—(Green) Located on the right of a GE port. Lights 
steady when another device is connected to the port, is powered on, and a 
1000 Mbps link is established between the devices. When the LED is off, 
the connection speed is under 1000 Mbps or nothing is cabled to the port.
SFP (if present)—(Green) Located on the right of a GE port. Lights steady 
when a connection is made through the shared port. Flashes when the port 
is passing traffic. 
Reset Button
The switch can be reset by inserting a pin or paper clip into the reset 
button opening on the front panel of the switch. See Returning the Device 
to the Factory Default Settings and Troubleshooting, page19 for 
details.
Back Panel
The power port and console port are located on the back panel of the 
switch.
Power—Connects the switch to AC power.
Console—Connects a serial cable to a computer serial port so that it can 
be configured by using a terminal emulation program.
Returning the Device to the Factory 
Default Settings and Troubleshooting
To use the Reset button to reboot or reset the switch, do the following:
• To reboot the switch, press and hold the Reset button for less than 10 
seconds.
• To restore the switch configuration to the factory default settings:
1. Disconnect the switch from the network or disable all DHCP servers 
on your network.
2. With the power on, press and hold the Reset button for more than 
10 seconds.
CONSOLE
POWER
100-240V-
4A 50-60Hz
196710