Powering On A Stack Of Catalyst 3920S - Cisco Catalyst 3920 Installation Manual

Caution
as this may cause damage to the Catalyst 3920 or the RPS.
Step 3
Step 4

Powering on a Stack of Catalyst 3920s

If you install your Catalyst 3920 in a Catalyst stack formation, use the following steps to power on
your Catalyst stack units:
Step 1
Step 2
Step 3
Step 4
If a fully-redundant configuration is used, do not connect the AC power cord to the Catalyst 3920
Verify that the power (PWR) LED on the left side of the front panel is on. If it is not, make
sure that the outlet is working correctly. If the outlet is working but the PWR LED is off,
contact your Cisco Systems representative.
Verify that diagnostics have been completed successfully.
The Catalyst 3920 automatically performs a self-test when connected to a power supply.
During the test, the LEDs should behave as follows:
•
In the first 2 minutes, the Mode LED is on and the FLT LED is off.
•
After 2 minutes, the Mode and FLT LEDs are off.
Note that the Tx/Rx LEDs next to each port blink during self-test even when a device is
not attached to the port.
If the self-test is successful (the PWR LED is on and the Mode and FLT LEDs are off),
physical installation of the Catalyst 3920 is complete.
If the LEDs are not in the normal state, refer to the "Hardware Troubleshooting"
appendix.
Using the supplied power cables, plug the female end of the cables into the AC
receptacles on the Catalyst 3920 or each Catalyst Matrix module.
For the Catalyst 3920, the receptacle is on the left side of the back panel. For the Catalyst
Matrix, it is at the lower right hand corner on the front panel of each module.
Plug the male end of the power cords into a properly grounded electrical outlet.
Verify that the PWR LED is on for each module in the Catalyst Matrix. For the
Catalyst 3920, verify that the PWR LED on the left side of the front panel is on. If it is
not on, ensure that the outlet is working correctly. If the outlet is working but the PWR
LED is off, contact your Cisco Systems representative
Verify that the diagnostics have been completed successfully.
The Catalyst 3920 automatically performs a self-test when connected to a power supply.
During the test, the LEDs should do the following:
•
In the first 2 minutes and 10 seconds, the Mode LED is on and the FLT LED is off.
•
After 2 minutes and 10 seconds, the Mode and FLT LEDs are off.
Note that the Tx/Rx LEDs next to each port blink during self-test even when a device is
not attached to the port.
If the self-test is successful (the PWR LED is on and the Mode and FLT LEDs are off),
physical installation of the Catalyst 3920 is complete. If the LEDs are not in the correct
state, refer to the "Hardware Troubleshooting" appendix.
Installing the Catalyst 3920 3-9