3Com 3C13640 Installation Manual

Also see for 3040: Release note Command reference guide Supplementary guide Configuration guide Manual

3Com 3C13640 Installation Manual Manual pdf 16 page image

3Com Router 3000 ADSL2+ FamilyInstallation Guide 2. Installing the Router2-32.3 Connecting the Ground WireCaution:Properly connect the ground wire before connecting other cables and shorten it as much as possible to prevent the routerand the connected device from getting damaged during periods of lightning activities.The grounding screw of the chassis PGND is located on the rear panel. Connect this screw to theearth ground using a ground wire. The grounding resistance must not be greater than 5-ohm.2.4 Connecting the Power Cord2.4.1 AC-input power supplyThe Router 3040/3041 external AC-input power supply is provided with these specifications:z Input rated voltage: 100 to 240 V a.c., 50 to 60 Hzz Max. input tolerance: 90 to 264 V a.c., 50 to 60 Hzz Input current: 0.5 to 1Az Output voltage: 12 V d.c.z Output current: 4 AFigure 2-2 illustrates the power supply:Figure 2-2 Power supply2.4.2 Connecting the AC-input power cordStep 1: Put the power switch of the router in OFF position.Step 2: Connect the output of the power supply to the power input on the rear panel of the router,and then insert the input connector of the power supply into an AC power outlet.Step 3: Put the power switch of the router in ON position.Step 4: Check that the PWR LED on the front panel of the router is ON. If the LED is OFF, repeatsteps 2 through 4.