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Verifying Power Requirements
The cable modem will only accept 10Vdc, 1.2A power. An external AC-to-DC power
adapter must be used to make the cable modem work properly. Only the power
adapter accompanying this cable modem should be used. Use of any other adapter
will void the product warranty.
We recommend that you follow these precautions:
Ø Verify the power adapter's power plug is the same as that of your local power
outlet. If not, do not use it and ask your service provider for a replacement.
Ø If you are plugging the cable modem into an Uninterruptible Power Supply (UPS),
verify that the total power and current requirements used by all devices plugged
into the UPS are within the maximum limits of the UPS.
Ø Install proper grounding to avoid damage from lightning and power surges. If
using a North American (NEMA 5-15P) plug, you must plug the unit into a
three-lead receptacle to ensure proper grounding.
Warning: Never remove the ground conductor or operate the equipment in the
absence of a suitably installed ground conductor. Contact the appropriate
electrical inspection authority or an electrician if you are uncertain that suitable
grounding is available.
Ø Ensure that a proper fuse or circuit breaker is used on the phase conductors (all
current-carrying conductors providing power to the device).
Ø
Do not work on the system, connecting or disconnecting any cables (Ethernet,
cable, or power) during periods of lightning activity. The possibility of serious
physical injury exists if lightning should strike and travel through those cables.
SMC8002CM Installation Guide
11
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