HP J9028B User Manual - Page 15

Port Link/Act and Mode LED Installing the Switch Installation Procedure Installing the Switch Power LED When the switch is powered on, it performs its diagnostic self test. The self test takes approximately 20 seconds to complete. Self Test LED Behavior: During the self test: • The LEDs go on and off several times during phases of the self test. When the self test completes successfully: • The Power LED remains on. • The Fault LED remains off. • The Speed LED remains on indicating the default LED mode. • The port LEDs on the front of the switch go into their normal opera- tional mode: - If the ports are connected to active network devices, the Link LEDs stay on and the Mode LEDs behave according to the mode selected. In the default mode (Speed), the Mode LEDs should be on for ports operating at 1000 Mbps and off for ports operating at 10 or 100 Mbps. - If the ports are not connected to active network devices, the Link and Mode LEDs will stay off. If the LED display is different than what is described above the self test has not completed correctly. Refer to "Troubleshooting" for diagnostic help. 3. Mount the Switch The switch can be mounted in these ways: ■ in a rack or cabinet ■ on a horizontal surface ■ on a wall 2-5