55InstallationADSL WAN module replacementThe following sections describe how to replace the ADSL WAN module in a Business ServicesGateway 12-port (BSG12aw).ADSL WAN module replacement navigation• “Saving the running configuration to Flash using the WebUI” on page 55• “Saving the running configuration to Flash using the CLI” on page 56• “Replacing the ADSL WAN module” on page 56• “Verifying the ADSL WAN module status” on page 57Prerequisites to ADSL WAN module replacement• If the system is still operating, perform the procedure “Shutting down the BSG8ew/12ew/aw/tw” on page 63.• Obtain an ADSL WAN Replacement Module (NT5S21ZCE6) for the BSG12aw fromNortel.• Ensure you have the following items available:— an antistatic wrist grounding strap— a Phillips screwdriver— grounding sourceSaving the running configuration to Flash using the WebUIUse this procedure to save the running configuration using the WebUI.Procedure stepsStep Action1 From the BSG12aw logon page, log on using the user ID and password.2 From the left-hand navigation panel, select Administration, ConfigurationFile, Save.3 Click Apply.EndCaution: Risk of equipment damageYou must wear an antistatic grounding strap at all times when handlingelectronic components. Failure to do so can result in damage to the equipment.