58 Installing Secure Router 4134 hardware componentsWhen the power supply is fully inserted, the front of the power supplyunit is flush with the rear panel of the router.5 Secure the power supply in the chassis by tightening the tworetaining screws.—End—Procedure steps to replace a power supply unitStep Action1 Use a Phillips screwdriver to loosen the two screws that secure thepower supply unit that you must replace.2 Grasp the handle on the power supply unit.3 Pull the power supply unit from the slot.4 Place the power supply unit on antistatic material.5 Insert the replacement power supply unit in the power supply slot.6 Push the power supply unit gently, but firmly, to insert it fully into theinternal connection port.When the power supply is fully inserted, the front of the power supplyunit is flush with the rear panel of the router.7 Secure the power supply in the chassis by tightening the tworetaining screws.—End—Replacing a fan tray moduleThe Secure Router 4134 ships with the fan tray module installed. Thissection contains instructions for replacing a fan tray module.Average time to install or replace a fan tray module: 1 minute.CAUTIONRisk of equipment damageThe fan is essential for maintaining optimal system operatingtemperature. If you plan to replace the fan tray module while thesystem power is on, ensure you have another fan tray moduleready to insert immediately. Watch the fan status LED for alerts.Nortel Secure Router 4134Installation — Hardware ComponentsNN47263-301 01.02 Standard10.0 7 August 2007Copyright © 2007, Nortel Networks.
