Cisco Catalyst 250 Series Getting Started Manual page 6

Approximately 30 seconds after the switch powers on, it begins the power-on self-test (POST), which can take up to 5
minutes to complete.
During POST, the SYST (system) LED blinks green. When POST is complete, the SYST LED turns solid green. The
MAST (master) LED is green if the switch is acting as the stack master.
Before going to the next step, wait until POST is complete.
If the SYST LED does not turn solid green, or turns amber, the switch failed the POST. Contact your Cisco
Note
representative or reseller.
Step 5 Press the Mode button when the SYST, MAST, and STAT LED turn green, hold the Mode button until all the LEDs next
to the Mode button turn green.
You might need to hold the button for more than 3 seconds.
The switch is now in Express Setup mode.
If the LEDs next to the Mode button blink when you press the button, release it. Blinking LEDs indicate that the
Note
switch is already configured and cannot go into Express Setup mode. See
Step 6 Connect a Category 5 or 6 Ethernet cable to a port:
• Any 10/100/1000 or 10/100/1000 PoE+ Ethernet port
• The RJ-45 Ethernet management port
Connect the other end of the cable to the Ethernet port on your PC.
Wait until the port LEDs on the switch and your PC or laptop are green or blinking green. Green LEDs indicate a successful
connection.
Resetting the Switch, on page 21.
5