Safety
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Radio Frequency Emissions and Immunity
United States Compliance
This device complies with part 15 of the FCC Rules. Operation is subject to the fol-
lowing two conditions: (1) This device may not cause harmful interference, and
(2) this device must accept any interference received, including interference that
may cause undesired operation.
Product Safety
UL listed per UL60950.
Touchstone CM550 Cable Modem User's Guide
Usage
Instructions: The exclamation point within a triangle alerts you to the pres-
ence of important operating and maintenance instructions.
Alternating Current: A terminal to which or from which an alternating (sine
wave) current or voltage may be applied or supplied.
Direct Current: A terminal to which or from which a direct current or voltage
may be applied or supplied.
Troubleshooting
Glossary
Definition
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