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Chapter 3: Product overview
Note: Your cable service must be operational for the modem to function. Check for
the US/DS and Online LEDs on the front panel. Both LEDs should be lit SOLID white
when you power ON the device. If they are not, your cable service is not operational.
Specifications for T25 power usage:
Model Condition App. Power (VA) T25: Idle - 19.917; Full - 30.740
Telephony cable modem label
The telephony cable modem label is located on the bottom of your T25. It contains the voice
modem information that you may need when contacting your service provider or ARRIS..
To receive Internet service, contact your service provider for assistance. You may need to
provide the following information listed on the label:
■
Telephony cable modem model name (T25)
■
Telephony cable modem MAC address (HFC MAC)
■
Telephony cable modem Serial number (S/N)
SURFboard
®
T25 Cable Modem with Xfinity Voice User Guide STANDARD Revision 2.0 17
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