3Com 3040 Başlangıç Kılavuzu - Sayfa 8
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3Com Router 3000 ADSL2+ Family Getting Started Guide
Connecting the Ground Wire
Caution:
Properly connect the ground wire before connecting other cables and shorten it as much as
possible to prevent the router and 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 the
earth ground using a ground wire. The grounding resistance must not be greater than 5-ohm.
Connecting the Power Cord
AC-input power supply
The Router 3000 external AC-input power supply is provided with these specifications:
•
Input rated voltage: 100 to 240 Vac, 50 to 60 Hz
•
Max. input tolerance: 90 to 264 Vac, 50 to 60 Hz
•
Input current: 0.5 to 1A
•
Output voltage: 12 Vdc
•
Output current: 1.25 A
Connecting the AC-input power cord
Step 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, repeat
steps 2 through 4.
Caution:
If the PWR LED is still off after you repeat steps 2 through 4 several times.
Power supply
6