Brocade MLX Series and Brocade NetIron XMR Hardware ...

3Verifying proper operationTABLE 39 Router LED states and actionsLED label Desired state Meaning AbnormalstateMeaning or actionDC OUT Green (steady) The power supply isproviding DC powerto the router.ALM Off The power supply isin normal operatingcondition.Fan control module (two LEDs on rear panel of router)Unlabeled Green (steady) The fans areworking andresponding tocontrols from thefan control module.OffAmberOff oramberThe power supply is not supplying power to the device. If the DCIN LED is green, then there is a problem with the power supplyand it must be replaced.The power supply is malfunctioning.The fans are not receiving power (off), or the fans are not workingand not responding to controls from the fan control module(amber). Check the following:• If the LED is off, check the power LED on the other modulesto make sure they are receiving power. If you are using a DCpower source, check your power source for problems.• If you are using AC power supplies, take the actionsdescribed in the Meaning or Action column for the AC powersupply LED. If these actions do not resolve the problem,check the LED on each power supply or enter the showchassis command at any CLI prompt to determine if a powersupply has failed. If a power supply has failed, you mustreplace it.• If the LED is amber, you must replace the fan module.If a problem persists after taking action described in this table, contact technical support.Displaying the module statusAfter you have attached a PC or terminal to the console port or Ethernet port on the managementmodule and the router has initialized successfully, press Enter to display the CLI prompt in theterminal emulation window.Brocade>If you do not see this prompt, check the following items.1. Make sure the cable is securely connected to your PC or terminal and the console port orEthernet port.2. Check the settings in your terminal emulation program. In addition to the session settingslisted in “Attaching a PC or terminal to the console port or the Ethernet port” on page 228,make sure the terminal emulation session is running on the same serial port you attached tothe console port.When you see this prompt (Brocade>), you are connected to the system and can display the statusof the modules using the CLI. Enter the show module command at any CLI level.232 Brocade MLX Series and Brocade NetIron XMR Hardware Installation Guide53-1002373-02