HP J4868A User Manual - Page 21
LED Behavior:, During the self test, When the self test completes successfully, Power, Fault
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Installing the Switch 2124 Installing the Switch 2124 Installation Procedures switch port LEDs Power and Fault LEDs When the switch is powered on, it performs its diagnostic self test. The self test takes approximately 3 seconds to complete. LED Behavior: During the self test: • All the switch and port LEDs are on. When the self test completes successfully: • The large Power LED remains on. • The large Fault LED goes off. • The LED Mode Select Act remains on. • The port LEDs (Link and Mode) go into their normal operational 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 (Activity), the Mode LEDs should flicker showing network activity on the port. - 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, especially if the Fault LED stays on for more than 10 seconds or it starts blinking, the self test has not completed correctly. Refer to chapter 3, "Troubleshooting" for diagnostic help. 2-7