21Installation preparationThis section provides basic information about the Nortel Secure NetworkAccess Switch (NSNA) 4070 and the checklist of the shipped accessories.Navigation• "Safety precautions" (page 21)• "Installation checklist" (page 23)Safety precautionsThis section describes the safety precautions, which are vital for handlingand installation of the NSNA.Safety precautions navigation• "Personal safety before installing the device" (page 21)• "Module safety" (page 21)• "Cable and connector safety" (page 22)Personal safety before installing the deviceFor your safety, review the following personal safety warnings beforeworking with the NSNA.• Two or more people must be involved in installing the device.• Use the following safe practices for lifting:— Items between 18 and 32 kilograms (39.7 and 70.5 pounds) shouldbe lifted by a minimum of two people.Module safetyUse the following general practices to prevent the equipment damage whenworking with the NSNA.• The device must be installed in a room where the ambient temperatureis at or below 35 degrees Celsius (95 degrees Fahrenheit).Nortel Secure Network AccessInstallation — Quick Start Switch 4070NN47230-303 01.01 Standard2.0 28 July 2008Copyright © 2008, Nortel Networks.